Kinhi Heavy Industry Co.,Ltd.

2007-10-31

We at KINHI RINGS, specialize in manufacturing seamless rolled rings and large size & heavy forgings as per customers’ request and are capable of rolling seamless rings max. OD 295” (7,500mm) and make the complete forgings of max. 40,000kgs per piece by hydraulic forging press.

We at KINHI FLANGES, our separate independent plants focus on our regular production: standard flanges of 1/2” thru 200”, 150lbs to 5000 lbs with carbon, stainless and alloy, according to ANSI/ASME, API, MSS, AWWA, EN, DIN, JIS, KS, BS etc. for the industry field.

We at KINHI FITTINGS, our cooperated factories will be our solid backup for supplying the Top-Quality fittings such as Butt Welding Fittings and Forged Fittings.

All of our plants under ISO9001:2000 certified are managed to devote to each process or detail for supplying the “No-Trouble” products and service. We hope this brief introduction can help you to get outline understanding to us, for more detailed information, please do not hesitate to contact us.

Contact Us

Address: Ningbo City, Zhejiang Province,China
Zip: 315 040
Tel: +86-574-8793 4126
Fax: +86-574-8793 4129
Person: David Liu
E_mail;
Website: http://www.kinhiflange.com

Rolled Rings-Rolled ring

2010-11-25 11:35:25

Material:

Stainless/Carbon/Alloy

Rolled Rings:
Max.OD:7,500 mm
Max Height:2 000 mm

Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing

Machining:
Max.OD 8000mm and Max.Height 2,000mm
Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

Flanges-Stainless flanges

2010-11-25 11:35:25

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Sizes:
1/2” Thru 200”
Pressure:
150lbs Thru 5000lbs

Materials and Grade

Stainless steels: ASTM A182 F304/L, F316/L, F316Ti, F310,F317, F347, F321, F44 etc. / The equivalent acc. to DIN, BS, JIS ETC.

Special stainless: 904L, 310S, 2205 ETC.

Flanges-Welding Neck Flange

2010-11-25 11:35:25

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges, espceially in WN flange. The sufficient stainless stocks can give you one-stop choice.

Sizes:
1/2” Thru 200”
Pressure:
150lbs Thru 5000lbs

Materials and Grade
●Carbon steels: ASTM A105(N), A350 LF2, LF3, A694, A36 etc. / The equivalent acc. to DIN, BS, JIS ETC.
●Stainless steels: ASTM A182 F304/L, F316/L, F316Ti, F310,F317, F347, F321, F44 etc. / The equivalent acc. to DIN, BS, JIS ETC.
●Alloy steels: ASTM A182 F1, F5/A, F6, F7, F9, F11, F12, F22, F51, F55 etc. / The equivalent acc. to DIN, BS, JIS ETC.

Rolled Rings-Wind tower flange

2010-11-25 11:35:25

Available for forgings and rings as per customer’s drawing or special requirement
Standard: As per customers’ drawing or specification
Max OD: 75,000.00mm
Heat treatment:
Available for Annealing, Quenching, Tempering, Normalizing
Testing:
Ultrasonic (UT), Radiographic Examination (RT)
Laboratory:
Available
Machining:
CNC lathe and drilling

Forgings-Forged disk

2010-11-25 11:35:25

Our strength is heavy forgings with the max. weight 40,000kgs per piece. We supplied the 28,000kgs per piece F321 forged disk under fully machined this year.

Sizes:
Max. OD295” (7,500mm) and max. height 78” (2,000mm) for disk

Max. Length: 20m for shaft

Materials and Grades:
●Carbon steels: ASTM A105(N), A350 LF2, LF3, A694, A36 etc. / The equivalent acc. to DIN, BS, JIS ETC.
●Stainless steels: ASTM A182 F304/L, F316/L, F316Ti, F310,F317, F347, F321, F44 etc. / The equivalent acc. to DIN, BS, JIS ETC.
●Alloy steels: ASTM A182 F1, F5/A, F6, F7, F9, F11, F12, F22, F51, F55 etc. / The equivalent acc. to DIN, BS, JIS ETC.

Rolled Rings-Special rolled ring

2010-11-25 11:35:25

Rolled Rings:
Max.OD:7,500 mm
Max Height:2 000 mm

Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing
Machining:
Max.OD 8000mm and Max.Height 2,000mm
Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

Forgings-Forged tube

2010-11-25 11:35:26

Material: Stainless/Carbon/Alloy

As per the customer's drawing or specification

Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing

Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

Butt Welding Fittings-Elbow

2010-11-25 11:35:26

Fittings are our regular scope and supplied to the projects and stockists from our cooperated plants. The complete production facility allows to provide you with the extensive range of products. Our cooperated plants keep the equipments : 1500T and 600T stainless steel cold forming machines; 3000T,1500T,800T and 500T hot forming and for carbon, alloy, stainless pipe fittings.

We focus on stainless steel fittings.

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)
Bend

Caps

Wedolet

Butt Welding Fittings-Stainless fittings

2010-11-25 11:35:26

We focus on stainless steel fittings.

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)
Bend

Caps

Wedolet

Forged Fittings-Forged fittings

2010-11-25 11:35:26

Forged Fittings(Socket and screwed fittings)

We supply a variety of forged fittings, these fittings are mostly in use of high pressure and made of forged material or seamless tube.

Standards: ANSI B16.11, MSS SP-83, BS3799

Size: 1/8" - 4" (DN15~DN100) as per ASME/ANSI B16.11

Pressure: 2000lbs, 3000 lbs, 6000 lbs for threaded fittings, 3,000lbs， 6,000 lbs, and 9,000 lbs for socket welding fittings

Length tolerances:± 1 mm

End Connections： Threaded and Socket Weld

Threads:

The threaded ends of the unions and fittings canbe made to DIN, NPT, API, BSP or other relevant standards.Overall length of the components may thereforediffer slightly.

Forged Fittings

Elbows: 90°, 45°

Tees: Straight and Reducing

Outlets: Welded, Socket, Threaded

Sockolet, Crosses, Couplings, Half Couplings, Caps, Plugs, Bushings, Inserts , Unions, Hex Nipple

Special Steel-Sperical steel

2010-11-25 11:35:26

Duplex-Super Duplex-Super Austenitic

Special Steel is our new growing point and we devoted to the special stainless steel now. We can make the flanges and fittings based on the Duplex, Super Duplex, Super Austenitic and some special stainless. We are very pleased to cooperate in these special steel.

904L;310S;2205;F55;ALLOY30;F44

Forgings-Forged ring

2010-11-25 11:35:26

Material:

Stainless/Carbon/Alloy

Forged-nbsp;Rings:
Max.OD:8,000 mm
Max Height:2 000 mm

Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing

Machining:
Max.OD 8000mm and Max.Height 2,000mm

Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

Rolled Rings-Ring flange

2010-11-25 11:35:26

Rolled Rings:
Max.OD:7,500 mm
Max Height:2 000 mm
Forged Disks:
Max.OD:5,500 mm
Max.weight/piece:40,000kgs
Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing
Machining:
Max.OD 8000mm and Max.Height 2,000mm
Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

Butt Welding Fittings-Butt Weld Fittings

2010-11-25 11:35:26

BUTT WELDED PIPE FITTING WE ARE ABLE TO SUPPLY

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)
Bend

Caps

Wedolet

Malleable Fittings-Malleable Iron Fittings

2010-11-25 11:35:26

Malleable Iron Pipe Fittings we can supply:
Types of Fittings:
1. Elbows
2. Tees
3. Crosses
4. Sockets
5. Plugs
6. Backnuts
7. Nipples
8. Other fittings

Materials:
According to ISO5922

Dimensions:
According to ISO49

Threads:
According to ISO7/1

Mechanical Properties:
Tensile strength ≥33kg/mm2
Elongation Rate ≥8%
Hardness ≥HB.163

Pressure:
Test Pressure: 25kg/cm2 (355lbs/In2)
Working pressure: 16kg/cm2(227lbs/In2)

Flanges-Individual Packed Flanges

2010-11-25 11:35:26

Flanges we are able to supply as follows,
Types of Flanges Available:
1.Pipeline flanges (Weld neck, Slip-On, Threaded, Blind, Socket weld, Lap-Joint) to US, British, Japanese and European Standards
2.Orifice flanges and Orifice plate
3.Long weld neck flanges
4.Spectacle blinds
5.Tube sheets and baffle plates
6.Large diameter flanges
7.Reducing flanges
8.Wind tower flanges
9.Other special flanges

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Pressure:
150lbs Thru 5000lbs
Materials and Grade
.Carbon steels: ASTM A105(N), A350 LF2, LF3, A694, A36 etcC. / The equivalent acc. to DIN, BS, JIS ETC.
.Stainless steels: ASTM A182 F304/L, F316/L, F316Ti, F310,F317, F347, F321, F44 etc. / The equivalent acc. to DIN, BS, JIS ETC.
.Alloy steels: ASTM A182 F1, F5/A, F6, F7, F9, F11, F12, F22, F51, F55 etc. / The equivalent acc. to DIN, BS, JIS ETC.
Standards Available
We can manufacture and supply flanges as per below standards.
A. America standard: ANSI B16.5/API605, 6A, 6B/MSS SP44/AWWA C207
B. Germany standard: DIN2527/2528/2561/2565/2566/2573/2576/2627-2630/2641/2642/2655/ 2656/2673/86029/86030
C. British standard: BS 4504 PN16/PN25/PN40, BS10 TABLE E/TABLE D
D. Japan standard: JIS/KS 5K, 10K, 16K, 20K, 30K

Flanges-Tube Sheet

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. Tube sheet, we can supply fully machined one and proof forgings.

Sizes:
1/2” Thru 200”
Pressure:
150lbs Thru 5000lbs

Flanges-Painted Carbon Flange

2010-11-25 11:35:26

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Flanges-RTJ Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Types of Flange Faces:
Ring Joint

Sizes:
1/2” Thru 200”

Pressure:
150lbs Thru 5000lbs

Materials and Grade
.Carbon steels: ASTM A105(N), A350 LF2, LF3, A694, A36 etcC. / The equivalent acc. to DIN, BS, JIS ETC.
.Stainless steels: ASTM A182 F304/L, F316/L, F316Ti, F310,F317, F347, F321, F44 etc. / The equivalent acc. to DIN, BS, JIS ETC.
.Alloy steels: ASTM A182 F1, F5/A, F6, F7, F9, F11, F12, F22, F51, F55 etc. / The equivalent acc. to DIN, BS, JIS ETC.
Standards Available
We can manufacture and supply flanges as per below standards.
A. America standard: ANSI B16.5/API605, 6A, 6B/MSS SP44/AWWA C207
B. Germany standard: DIN2527/2528/2561/2565/2566/2573/2576/2627-2630/2641/2642/2655/ 2656/2673/86029/86030
C. British standard: BS 4504 PN16/PN25/PN40, BS10 TABLE E/TABLE D
D. Japan standard: JIS/KS 5K, 10K, 16K, 20K, 30K

Flanges-SO Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Pressure:
150lbs Thru 5000lbs

Flanges-Blind Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Flanges-Threaded Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Pressure:
150lbs Thru 5000lbs

Flanges-Socked Weld Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Pressure:
150lbs Thru 5000lbs

Flanges-Plate Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

Types of Flange Faces:
1.Raised Face
2.Flat-Face
3.Ring Joint
4.Tongue-Groove
5.Male-Female

Sizes:
1/2” Thru 200”

Pressure:
150lbs Thru 5000lbs

Flanges-Long Welding Neck Flange

2010-11-25 11:35:26

Our strength is large size flange (Over 24”/DN600) and high pressure resistance flanges. The sufficient stainless stocks can give you one-stop choice.

As per standard or customer's drawing and specification.

Butt Welding Fittings-Tee

2010-11-25 11:35:26

We focus on stainless steel fittings.

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)
Bend

Caps

Wedolet

Butt Welding Fittings-Cap

2010-11-25 11:35:26

We focus on stainless steel fittings.

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)
Bend

Caps

Wedolet

Butt Welding Fittings-Reducer

2010-11-25 11:35:27

We focus on stainless steel fittings.

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)
Bend

Caps

Wedolet

Item: WN,SO,Blind ,Lap Joint,Thread,Tube-sheet etc.
Material: Carbon Steel, Stainless Steel And Alloy Steel
Standard: ASTM,BS,DIN,JIS,AWWA,API etc
Size: 1/2” thru 200”
Weight: Max:8000KG per piece
Pressure: 150lbs to 5000lbs

Item: WN,SO,Blind ,Lap Joint,Thread,Tube-sheet etc.
Material: Carbon Steel, Stainless Steel And Alloy Steel
Standard: ASTM,BS,DIN,JIS,AWWA,API etc
Size: 1/2” thru 200”
Weight: Max:8000KG per piece
Pressure: 150lbs to 5000lbs

Special Steel:

Duplex-Super Duplex-Super Austenitic

Special Steel is our new growing point and we devoted to the special stainless steel now. We can make the flanges and fittings based on the Duplex, Super Duplex, Super Austenitic and some special stainless. We are very pleased to cooperate in these special steel.

Special Steel:

Duplex-Super Duplex-Super Austenitic

Forged Fittings (Socket and screwed fittings)

We supply a variety of forged fittings, these fittings are mostly in use of high pressure and made of forged material or seamless tube.

Standards: ANSI B16.11, MSS SP-83, BS3799

Size: 1/8" - 4" (DN15~DN100) as per ASME/ANSI B16.11

Pressure: 2000lbs, 3000 lbs, 6000 lbs for threaded fittings, 3,000lbs， 6,000 lbs, and 9,000 lbs for socket welding fittings

Length tolerances: ± 1 mm

End Connections： Threaded and Socket Weld

Threads:

The threaded ends of the unions and fittings can be made to DIN, NPT, API, BSP or other relevant standards. Overall length of the components may therefore differ slightly.

Our Supply:

Elbows: 90° and 45°, Tees: Straight and Reducing Outlets: Wleded, Socket, Threaded, Sockolet, Crosses, Couplings, Half Couplings, Caps, Plugs, Bushings, Inserts , Unions, Hex Nipple

Forged Fittings (Socket and screwed fittings)

We supply a variety of forged fittings, these fittings are mostly in use of high pressure and made of forged material or seamless tube.

Standards: ANSI B16.11, MSS SP-83, BS3799

Size: 1/8" - 4" (DN15~DN100) as per ASME/ANSI B16.11

Pressure: 2000lbs, 3000 lbs, 6000 lbs for threaded fittings, 3,000lbs， 6,000 lbs, and 9,000 lbs for socket welding fittings

Length tolerances: ± 1 mm

End Connections： Threaded and Socket Weld

Threads:

The threaded ends of the unions and fittings can be made to DIN, NPT, API, BSP or other relevant standards. Overall length of the components may therefore differ slightly.

Our Supply:

Elbows: 90° and 45°, Tees: Straight and Reducing Outlets: Wleded, Socket, Threaded, Sockolet, Crosses, Couplings, Half Couplings, Caps, Plugs, Bushings, Inserts , Unions, Hex Nipple

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)

Bends

Caps

Wedolets

Material: Carbon-Stainless-Alloy

Corrosion resistance: Black paint and gavanization for carbon fittings

Type: Seamless and seam weld

Pressure Range: #150, #300, #600, #900, #1500, and #2500

Size: 1/2” thru 64” as per ANSI B 16.9 / MSS SP 75

Thickness: SCH5S thru SCHXXS.

Our supply:

Elbows （LR and SR）
Tees （Equal and Reducing）
Reducers (Concentric and Eccentric)
Stub Ends (Lap-joint)

Bends

Caps

Wedolets

Item: Forged Disks, Forged Tube, Forged Cylinder, Forged Shafts
Material: Carbon Steel, Stainless Steel And Alloy Steel
Standard: As per the drawing or customer's specification
Size: 1/2” thru 295”
Weight: Max.40,000kgs per piece

Item: Forged Disks, Forged Tube, Forged Cylinder, Forged Shafts
Material: Carbon Steel, Stainless Steel And Alloy Steel
Standard: As per the drawing or customer's specification
Size: 1/2” thru 295”
Weight: Max.40,000kgs per piece

Rolled Rings, Wind Tower Flanges as per the common norms or customers’ specification.

Rolled Rings:
Max.OD:7,500 mm
Max Height:2 000 mm
Forged Disks:
Max.OD:5,500 mm
Max.weight/piece:40,000kgs
Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing
Machining:
Max.OD 8000mm and Max.Height 2,000mm
Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

Rolled Rings, Wind Tower Flanges as per the common norms or customers’ specification.

Rolled Rings:
Max.OD:7,500 mm
Max Height:2 000 mm
Forged Disks:
Max.OD:5,500 mm
Max.weight/piece:40,000kgs
Heat treatment:
Complete heat treating is capable of Annealing,
Quenching,Tempering and Normalizing
Machining:
Max.OD 8000mm and Max.Height 2,000mm
Testing and Inspection:
Mechanical properties and non-destructive testing
In-house and the third party

The Advantages of Forging Metal

2010-11-25 11:35:12

The history of metal forging is in many ways the history of human civilization. As humanity attempted to shape the natural world to its needs, the development of metal forging was essential. Entire periods of civilization are categorized by developments in metallurgy, such as the Bronze Age and Iron Age. The 19th and 20th centuries might one day be included in a Steel Age. Forging metal provides numerous advantages essential to modern civilization. Strength Metallurgy is probably the oldest of the applied sciences. Since well before recorded history, humans have been using forging to create stronger metals than the ones that are naturally found in the ground. The discovery of steel was probably a necessary step toward the industrial revolution. Only by super-heating iron in a forge is the purer compound of steel created. Today steel and other strong metals created from forging underlie most large construction. Design Through the use of a forge to melt metal down to liquid, it is possible to create metal objects in any shape imaginable. This intention is probably what led to the first uses of metal forging, as people created jewelry and other decorative objects out of gold and other attractive metals. This is still a major benefit of forging metal that is taken advantage of today as metal decoration is used all over. Cost Due to the techniques first developed during the Industrial Revolution, the art of metal forging now allows the cheap mass production of metals that once were extremely rare and expensive. Steel was known from as early as the 11th century BC. It was only with the development of the Bessemer process in the 19th century that a way to produce it cheaply and in large amounts allowed it to be used in construction that undergirds modernity.

Forging

2010-10-22 14:44:42

Definition: A process of working metal to a finished shape by hammering or pressing and is primarily a "hot" operation. It is applied to the production of shapes either impossible or too costly to make by other methods or needing properties not obtainable by casting. Categories of forgings include Hammer, Press, Drop or Stamping.

Flange Types

2010-9-13 14:43:23

There are seven standard types of flanges used for connecting pipes, valves, pumps and other parts of a pipe system: weld neck, slip-on, blind, socket weld, threaded, lap joint and ring type joint. For ease of comprehension, these flanges are divided into three categories: low turbulence, low pressure and other; however, these categories are not binding, as certain types of flanges may be adjusted for different applications. Definition A flange is a plate type device, normally round, that is attached to the end of a pipe, fitting, valve or other object to facilitate the assembly and disassembly of a piping system, providing easy access for cleaning, inspecting or modification. Flanges are usually welded or screwed in place, and all types except the lap joint have a raised face equal to the contact area of the associated gasket. Low Turbulence Flanges A weld neck flange is welded into the neck of the pipe system, matching the bores of both pipe and flange, which reduces turbulence and erosion inside the system. A socket weld flange is counter-bored to match the bore of the pipe before being welded in place; like a weld neck flange, the socket weld flange reduces turbulence and provides good flow characteristics. Low Pressure System Flanges Threaded flanges (also known as "screwed" flanges) are used in low-pressure pipe systems to connect other threaded components; no welding is necessary. Lap joint flanges are also used in low pressure pipe systems; they are easy to assemble and align and are the only type of flange that doesn't have a raised face. Other Types A slip-on flange is slipped over the pipe and then welded in place; the strength of a slip-on flange is about two thirds that of a weld neck flange. A blind flange (sometimes referred to as "blanking flange") is used to close off ("blank off") pipes or valves. Ring type joint flanges use a metal ring that is compressed into a hexagonal groove on the face of the flange, ensuring a leak-proof seal in high pressure pipe systems. Subcategorization by Face Type Flanges may be subcategorized by different face types: flat face, raised face, ring-type joint, tongue and groove and male and female.

Pipe Flange Information

2010-9-13 13:53:57

Pipe flanges are American National Standards Institute (ANSI) rated for pressure y, corrosion resistance and maximum strength. Whenever installing flanges, either cast flanges (part of pipes or tubes) or ring flanges (slid onto to pipe or tube collars), always make sure the line's pressure will carry and what will will contain. Stainless steel will work well with water or steam but can wear away quickly if subjected to caustic slurry or chemical process. Cast Flange Cast flanges are part of the line section and are aligned to connect quickly to another flanged section. These flanges are strong and resistant to pressure. The disadvantage to a cast flange is if flange must be disassembled or replaced the entire length of line must also. Ring Flange Ring flanges are separate parts from the line. The line has a flared end and the flange rings around the flared end to seal it tight when connected to another flange. The advantage is the ring flange allows for different diameters of line to attach using the flange as a reducer. The flange is also easily replaceable without replacing the entire section, an important quality with caustic and corrosive media. The disadvantage is the ring flange/flare connection may not be as resistant to high-pressure media in the line. Gaskets Flange installation uses gasket material placed between each flange connection. Gasket material is also ANSI rated and different gaskets are needed for containing and handling different media. In most instances if a leak or failure occurs at the flange-to-flange fitting, the gasket can be considered the prime source for the malfunction. Replacing gaskets connected to either type of fitting involves the same procedure and does not necessarily involve replacing the flanges or the line. Installation Installing flanges is a basic mechanical job: insert the gasket material, align the flange bolt holes and secures with the necessary number of bolts. Always bolt every hole. Don't assume leaving one or two disconnected will satisfactory seal the connection. Also, use a criss-cross pattern to tightening the bolts: tighten the bolt on top then the one at the bottom, to the left and then the right. Repeat this around the flange's circumference. This bolting procedure will apply pressure to the gasket and the facing flanges evenly and result in a complete seal. Just bolting around the circle can lead to crimping and poor alignment of the last remaining bolts. Fastener Always use fasteners specified for the flange fitting. Using fasteners made of the wrong material. As an example, galvanized bolts with stainless steel flanges can lead to galvanic corrosion. Using bolts too small for the flange can allow the flange to move. Bolts too short may lead to insufficient threading and the flanges will not be secure.

Pipe Welding Made Easy

2010-7-3 16:06:15

Pipe fitting and welding is a very common activity for welders, and requires different techniques and a higher skill level than standard flat welds. Many pipes require welds to be performed overhead or in tight confines, and the welder has to maintain a consistent bead while continuously moving the equipment around the pipe. Pipe Welding Preparation Before the pipes can be fit up and welded, the welder has to prepare the ends of the pipes. The standard configuration for pipe welding is a single-vee butt weld. In this case, the outer edge of the pipe is beveled so that when the edges of the pipe are brought together, they form a vee-shaped groove that will contain the weld. The edges of the pipe can be beveled using a torch cutter and cleaned up by grinding, or by using a pipe cutting machine. In some cases, the pipes may be pre-beveled as part of the manufacturing process. The pipe edges are then cleaned and de-greased to remove contaminants from the surface that could adversely affect the weld. Fitting Up Pipes for Welding After preparing the pipes, the welder arranges the pipes in the location where they will be installed in a process called "fitting up". This ensures that all of the pipes are aligned properly before any of the welds are created. To do this, the welder will tack weld individual joints and verify alignment of each joint until each joint has about four tack welds. The tack welds provide stability plus a bit of flexibility in the assembly so that parts can be adjusted as needed. Pipe Welding Procedures There are two general procedures for welding pipes in a horizontal position: uphill welding and downhill welding. Uphill pipe welding is a technique most applicable to thick walled pipes that can retain heat. The weld begins at the lowest point of the pipe the welder builds the bead up one side of the pipe to the top of the pipe. The welder then repeats this process on the other side of the pipe, starting the weld at the lowest point and moving the bead upwards. Downhill pipe welding is performed on thin walled pipes that can dissipate heat quickly. In this case, the welder will start the weld at the top of the pipe and work the bead down to the lowest point of the pipe, repeating the process on the other side. Other than orientation, the general welding procedure is no different than flat welding, and will depend on the type of welding and the material of the pipes.

Stainless fittings type description

2010-6-29 11:23:59

Many kinds of Stainless fittings, summarized There are several main types: 1. Variable diameter pipe, that pipe end or pipe diameter of a part decreases; 2. Variable wall thickness of pipe fittings, refers to the direction along the tube length to thickness change; 3. Change the section of the tube, on request, to circular section into square, oval, polygon, etc.; 4. Curved pipe, we contacted more and more, is to become a straight pipe bends of different radius of curvature, such as elbows, bends, etc.; 5. With flange and round edge of the tube, the former refers to the inner tube or outer end of scoliosis, which refers to the direction of the circumference of the pipe form a bulge or recess of the tube; 6. With crimping and back class fittings, pipe end to increase the total strength of the outside or the inside of the tube or pipe crimping to seal the tube end; 7. Expanding pipe, pipe fittings as required to end or extend a part of the formation of various shapes of tube;

What is the flange?

2010-6-9 14:20:16

Flange pipe (flanged pipe fittings) that with a flange (flange or access plate) of the tube. It is made by casting, but may also constitute a threaded connection or welding. Flange (flange, joint) by a pair of flanges, a gasket, and the composition of a number of bolts nuts. Gasket on the sealing surface between the two flanges, tighten the nut, the gasket surface pressure reaches a certain value than the post-deformation, and to fill the sealing surface uneven Department, so that does not leak tight connection. Detachable flange connection is a connection. By the connected components can be divided into the container flange and pipe flanges. Divided by structure type, have an overall flange, loose flanges and threaded flange. Common integral flange with flat flange and butt welding flange. Less rigid flat welding flange for the pressure p ≤ 4MPa occasions; welded flange, also known as high-neck flange, more rigid, higher temperature for pressure situations. Flange sealing surface, there are three types: planar sealing surface for the pressure is not high, medium non-toxic occasions; uneven sealing surface for the higher pressure situations; tongue and groove sealing surface, suitable for flammable and explosive , toxic medium and high pressure situations. Gasket is to produce plastic deformation, and has a certain intensity of the ring material. Most pads are cut off from the metal plate, or by a professional factory producing the required size, the material is asbestos rubber sheet, asbestos sheet, polyethylene sheet, etc.; also useful for sheet metal (white metal, stainless steel) to asbestos made of non-metallic materials such as metal pack wrapped gasket; there is a thin strip along with the asbestos with a winding made of spiral wound gaskets. Ordinary rubber gasket suitable for temperature below 120 ℃ occasions; asbestos rubber gasket applied to the steam temperature is below 450 ℃, on the oil temperature below 350 ℃, pressure of less than 5MPa occasions, for general corrosion medium, the most commonly used is the acid asbestos. In the high-pressure equipment and piping in copper, aluminum, 10 steel, stainless steel and the lens or other forms of metal gasket. High-pressure gasket and sealing surface of the contact width is very narrow (line contact), with the gasket sealing surface finish higher processing. Low voltage and small diameter wire connected flange, high pressure and low pressure large-diameter welded flanges are used, different pressure flange thickness and bolt diameter and number of connections is different.

Professional terms of flanges and fittings

2010-5-5 21:50:29

Professional language of flanges and fittings（法兰与管件的中英文对照） 1.2 管件 Fitting 　　弯头 elbow 　　异径弯头 reducing elbow 　　带支座弯头 base elbow 　　k半径弯头 long radius elbow 　　短半径弯头 short radius elbow 　　长半径180°弯头 long radius return 　　短半径180°弯头 short radius return 　　带侧向口的弯头(右向或左向) side outlet elbow (right hand or left hand) 　　双支管弯头( 形) double branch elbow 　　三通 tee 　　异径三通 reducing tee 　　等径三通 straight tee 　　带侧向口的三通(右向或左向) side outlet tee (right hand or 1eft hand) 　　异径三通(分支口为异径) reducing tee (reducing on outlet) 　　异径三通(一个直通口为异径)reducing tee (reducing on one run) 　　带支座三通 base tee 　　异径三通(一个直通口及分支口为异径) reducing tee (reducing on one run and outlet) 　　异径三通(两个直通口为异径，双头式) reducing tee (reducing on both runs, bull head) 　　45°斜三通 45° lateral 　　45°斜三通(支管为异径) 45° lateral (reducing on branch) 　　45°斜三通(一个直通口为异径) 45° lateral (reducing on one run) 　　45°斜三通(一个直通口及支管为异径) 45° lateral (reducing on one run and branch) 　　Y型三通(俗称裤衩) true “Y” 　　四通 cross 　　等径四通 straight cross 　　异径四通 reducing cross 　　异径四通(一个分支口为异径)reducing cross (reducing on one outlet) 　　异径四通(一个直通口及分支口为异径) reducing cross (reducing on one run and outlet) 　　异径四通(两个分支口为异径) reducing cross (reducing on both outlet) 　　异径四通(一个直通口及两个分支口为异径) reducing cross (reducing on one run and both outlet) 　　异径管 reducer 　　同心异径管 concentric reducer 　　偏心异径管 eccentric reducer 　　锻制异径管 reducing swage 　　螺纹支管台 threadolet 　　焊接支管台 weldolet 　　承插支管台 sockolet 　　弯头支管台 elbolet 　　斜接支管台 latrolet 　　镶入式支管嘴 sweepolet 　　短管支管台 nipolet 　　支管台，插入式支管台 boss 　　管接头 coupling, full coupling 　　半管接头 half coupling 　　异径管接头 reducing coupling 　　活接头 union 　　内外螺纹缩接(俗称补芯) bushing 　　管帽 cap (C) 　　堵头 plug 　　短节 nipple 　　异径短节 reducing nipple; swage nipple 　　1.3 弯管 Bend 　　预制弯管 fabricated pipe bend 　　跨越弯管(^ 形) cross-over bend 　　偏置弯管(~ 形) offset bend 　　90°弯管 quarter bend 　　环形弯管 cirele bend 　　单侧偏置90°弯管(? 形) single offset quarter bend 　　S形弯管 “S” bend 　　单侧偏置U形膨胀弯管(| ?形) single offset “U” bend 　　U形弯管 “U” bend 　　双偏置U膨胀弯管 double offset expansion “U” bend 　　斜接弯管 mitre bend 　　三节斜接弯管 3-piece mitre bend 　　折皱弯管 corrugated bend 　　圆度 roundness 　　1.4 法兰 Flange (FLG) 　　整体管法兰 integral pipe flange 　　钢管法兰 steel pipe flange 　　螺纹法兰 threaded flange 　　滑套法兰(包括平焊法兰) slip-on flange (SO); slip-on welding flange 　　承插焊法兰 socket welding flange 　　松套法兰 lap joint flange (LJF) 　　对焊法兰 welding neckflange (WNF) 　　法兰盖 blind flange, blind 　　孔板法兰 orifice flange 　　异径法兰 reducing flange 　　盘座式法兰 pad type flange 　　松套带颈法兰 loose hubbed flange 　　焊接板式法兰 welding plate flange 　　对焊环 welding neck collar (与stub end相似) 　　平焊环 welding-on collar 　　突缘短节 stub end, lap 　　翻边端 lapped pipe end 　　松套板式法兰 loose plate flange 　　压力级 pressure rating, pressure rating class 　　压力—温度等级 pressure-temperature rating 　　法兰密封面，法兰面 flange facing 　　突面 raised face (RF) 　　凸面 male face (MF) 　　凹面 female face (FMF) 　　榫面 tongue face 　　槽面 groove face 　　环连接面 ring joint face 　　全平面;满平面 flat face; full face (FF) 　　光滑突面 smooth raised face (SRF) 　　法兰面加工 facing finish 　　粗糙度 roughness 　　光滑的 smooth 　　齿形 serrated 　　均方根 root mean square (RMS) 　　算术平均粗糙高度 arithmetical average roughness height (AARH) 　　配对法兰 companion-flange 　　螺栓圆 bolt circle (B.C.) 　　1.5 垫片 Gasket (GSKT) 　　垫片的型式 type of gasket 　　平垫片 flat gasket 　　环形平垫片 flat ring gasket 　　平金属垫片 flat metal gasket 　　夹棉织物的橡胶 elastomer with cotton fabric insertion 　　夹石棉织物的橡胶 elastomer with asbestos fabric insertion 　　夹石棉织物及金属丝加强的橡胶 elastomer with asbestos fabric insertion and with wire reinforcement 　　无石墨压缩白石棉垫片 non graphited compressed white asbestos gasket 　　天然白橡胶垫片 natural white rubber gasket 　　压缩石棉垫片 compressed asbestos class gasket 　　浸聚四氟乙烯的石棉垫片 PTFE impregnated asbestos gasket 　　夹石棉的缠绕金属垫片 spiral-wound metal gasket with asbestos filler 　　内环 inner ring 　　外环，外定位环 outer ring 　　波纹金属垫片 corrugated metal gasket 　　波纹金属包嵌石棉垫片 corrugated metal gasket with asbestos inserted 　　双夹套波纹金属包石棉垫片 corrugated metal double jacketed asbestos filled gasket 　　双夹套垫片 double jacketed gasket 　　金属包石棉平垫片 flat metal jacketed asbestos filled gasket 　　整体金属齿形垫片 solid metal serrated gasket 　　槽形金属垫片 grooved metal gasket 　　环形连接金属垫片 ring joint metal gasket 　　八角环形垫片 octagonal ring gasket 　　椭圆环形垫片 oval ring gasket 　　透镜式垫片 lens gasket 　　非金属垫片 non-metallic gasket

Heat Treating Stainless Steels

2010-2-3 16:38:47

Heat Treating Stainless Steels Wrought stainless steels are solution annealed after processing and hot worked in order to dissolve carbides and sigma. Carbides may form during heating in the 425 to 900C (800 to 1650F) range or during slow cooling through this range. Sigma tends to form at temperatures below 925C (1700F). Specifications normally require solution annealing to be done at 1035C (1900F) with a rapid quench. The molybdenum-containing grades are frequently solution annealed at somewhat higher temperatures in the 1095 to 1120C (2000 to 2050F) in order to better homogenize the molybdenum. Stainless steels may be stress relieved. There are several stress relief treatments. Guidelines follow. Stress redistribution at 290 to 425C (550 to 800F), which is below the sensitization range. When stainless steel sheet and bar are cold reduced greater than about 30% and subsequently heated to 290 - 425C (550 - 800F), there is a significant redistribution of peak stresses and an increase in both tensile and yield strength. Stress redistribution heat treatments at 290 - 425C (550 - 800F) will reduce movement in later machining operations and are occasionally used to increase strength. Since stress redistribution treatments are made at temperatures below 425C (800F), carbide precipitation and sensitization to intergranular attack (IGA) are not a problem for the higher carbon grades. Stress relief at 425 to 595C (800 to 1100F) is normally adequate to minimize distortion that would otherwise exceed dimensional tolerances after machining. Only the low carbon "L" grades or the stabilized 321 and 347 grades should be used in weldments to be stress relieved above 425C (800F) as the higher carbon grades are sensitized to IGA when heated above about 425C (800F). Stress relief at 815 to 870C (1500 to 1600F) is occasionally needed when a fully stress relieved assembly is required. Only the low carbon "L" grades, 321 and 347 should be used in assemblies to be heat treated in this range. Even though the low carbon and stabilized grades are used, it is best to test for susceptibility to IGA per ASTM A262 to be certain there was no sensitization during stress relief treating in this temperature range. Thermal stabilization treatments at 900C (1650F) minimum for 1 to 10 hours are occasionally employed for assemblies that are to be used in the 400 to 900C (750 to 1650F) temperature range. Thermal stabilization is intended to agglomerate the carbides, thereby preventing further precipitation and intergranular attack (IGA). As with 815 to 870C (1500 to 1600F) stress relief, it is best to test for susceptibility to IGA per ASTM A262. "Heat Treating, Cleaning and Finishing", Metals Handbook, 10th edition, Vol. 4 in the section entitled "Heat Treatment of Stainless Steels and Heat-Resisting Alloys".

Heat Treating Stainless Steels

2010-2-3 16:35:32

Categories of Stainless Steels

2010-2-3 16:23:57

Categories of Stainless Steels I. Austenitic - A family of alloys containing chromium and nickel (and manganese and nitrogen when nickel levels are reduced), generally built around the type 302 chemistry of 18% Cr, 8% Ni, and balance mostly Fe. These alloys are not hardenable by heat treatment. II. Ferritic - This group of alloys generally containing only chromium, with the balance mostly Fe, are based upon the type 430 composition of 17% Cr. These alloys are somewhat less ductile than the austenitic types and again are not hardenable by heat treatment. III. Martensitic - The members of this family of stainless steels may be hardened and tempered just like alloy steels. Their basic building block is type 410 which consists of 12% Cr, 0.12% C, and balance mostly Fe. IV. Precipitation-Hardening - These alloys generally contain Cr and less than 8% Ni, with other elements in small amounts. As the name implies, they are hardenable by heat treatment. V. Duplex - This is a stainless steel alloy group, or family, with two distinct microstructure phases -- ferrite and austenite. The Duplex alloys have greater resistance to chloride stress corrosion cracking and higher strength than the other austenitic or ferritic grades. VI. Cast - The cast stainless steels, in general, are similar to the equivalent wrought alloys. Most of the cast alloys are direct derivatives of one of the wrought grades, as C-8 is the cast equivalent of wrought type 304. The C preceding a designation means that the alloy is primarily used for resistance to liquid corrosion. An H designation indicates high temperature applications.

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2010-1-31 15:39:29

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Item: WN,SO,Blind ,Lap Joint,Thread,Tube-sheet etc. Material: Carbon Steel, Stainless Steel And Alloy Steel Standard: ASTM,BS,DIN,JIS,AWWA,API etc Size: 1/2” thru 200” Weight: Max:8000KG per piece Pressure: 150lbs to 5000lbs

Item: Forged Disks, Forged Tube, Forged Cylinder, Forged Shafts Material: Carbon Steel, Stainless Steel And Alloy Steel Standard: As per the drawing or customer's specification Size: 1/2” thru 295” Weight: Max.40,000kgs per piece

The Advantages of Forging Metal

Forging

Flange Types

Pipe Flange Information

Pipe Welding Made Easy

Stainless fittings type description

What is the flange?

Professional terms of flanges and fittings

Heat Treating Stainless Steels

Heat Treating Stainless Steels

Categories of Stainless Steels

Better service

Item: WN,SO,Blind ,Lap Joint,Thread,Tube-sheet etc.
Material: Carbon Steel, Stainless Steel And Alloy Steel
Standard: ASTM,BS,DIN,JIS,AWWA,API etc
Size: 1/2” thru 200”
Weight: Max:8000KG per piece
Pressure: 150lbs to 5000lbs

Item: Forged Disks, Forged Tube, Forged Cylinder, Forged Shafts
Material: Carbon Steel, Stainless Steel And Alloy Steel
Standard: As per the drawing or customer's specification
Size: 1/2” thru 295”
Weight: Max.40,000kgs per piece