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weld neck flange, slip on flange, blind flange, tube sheet, threaded flange, socket weld flange, plate flange, spectacle blind, LWN, Orifice flange, anchor flange etc.-CONTINENTAL STEEL CO.,LTD
Pipe Fitting

Carbon welded steel pipe

Piling Pipe SSAW Carbon steel pipe LSAW Carbon Steel Pipe ERW Carbon Steel Pipe

Carbon steel Seamelss pipe

Seamless Steel Pipe Boiler Steel Pipe Seamles Line Pipe Honed Tube Hydraulic cylinder pipe U Tube Heat Exchanger Tube Low temperature pipe Seamless Precision Tubes Carbon Seamless Mechanical Tube

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Stainless Steel Products

Stainless Steel Coil Stainless Steel Rod/Bar Welded Stainless Steel Pipe Seamless stainless steel pipe

Anti-corrosion coated steel pipe

Ceramic-lined Pipe Rubber-lined Pipe Concrete Coated Pipe 2PE /3PE coated pipe FBE coated pipe Galvanized steel pipe

Alloy steel pipe

Copper steel pipe Aluminium Brass Pipe Finned steel tube Aluminum steel pipe Titanium alloy pipe Hastelloy alloy pipe Nickel-Copper Alloy Pipe Nickel Alloy pipe Alloy Steel Pipe

Pipe Fitting

pre-fabricated piping spools Reducer Bend Tee Cap Elbow Flange

OCTG

Casing Pipe Tubing Pipe Sucker rod Tubing and Casing Coupling Pup Joint Drill Pipe Drill Collars Screen Pipe

Steel Profile

Steel Sheet Pile Angle steel Channel Steel I-Beam H Section Aluminum Steel Plate Carbon steel Plate Stainless Steel Plate

Steel Structure Fabrication

H Beam Steel Component Steel Lattice Column Box Steel Column Beams Fabrication Stud Welded Steel Column Structure

Flange

Type:Weld neck flange, slip on flange, blind flange, threaded flange, socket weld flange, plate flange, spectacle blind, LWN, Orifice flange, anchor flange etc.

Size:  OD: DN15- DN2000 (1/2''- 80'') and customized

Type: welding neck, slip on, blind, socket welding, threaded, lap-joint

Pressure: 150#, 300#, 600#,900#,1500#, 2500#,PN10,PN16,PN25,PN40;JIS 5K,JIS 10K;

Material: carbon steel A105, C22.8, S235, S235JR, P235GH,SS400,37.2
                  Stainless Steel :F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L,1.4301, 1.4404
                  ASTM A234 WP1/5/9/11/12/22/91,DEPLEX S31803/F51,S32750/F53
                  Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS3150

Other materials:alloy steel;copper steel;Titanium steel;Aluminium steel etc

 Coating:  Rust-proof oil, cold  and hot galvanize and customized
 Packing:  sea worthy plywooden case, wooden pallet

Introduction

Specification:

Type:Weld neck flange, slip on flange, blind flange, tube sheet, threaded flange, socket weld flange, plate flange, spectacle blind, LWN, Orifice flange, anchor flange,

Size:  OD: DN15- DN2000 (1/2''- 80'')

Type: welding neck, slip on, blind, socket welding, threaded, lap-joint

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

Material:  carbon steel A105, C22.8, S235, S235JR, P235GH,SS400,37.2
                  Stainless Steel :100Series to 400Series 304/L/H,316/L/H,317/L ,321,310S,321/321H,347/347H ,1.4301, 1.4404/CHROME
                  ASTM A234 WP1/5/9/11/12/22/91

                  Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500

 Coating:  Rust-proof oil, cold  and hot galvanize
 Packing:  sea worthy plywooden case, wooden pallet

FORGED FLANGE :

1) ANSI B16.5, ASME B16.47 FLANGE

  • Size range: 1/2" to 80"  DN15 to DN2000
  • Design: welding neck, slip on, blind, socket welding, threaded, lap-joint
  • Pressure: 150#, 300#, 600#,900#,1500#, 2500#
  • Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS
  • Material: carbon steel A105, stainless steel  304/304L, 316/316L
  • Coating: black paint, yellow transparent paint, cold and hot dip galvanize
  • Package: seaworthy plywooden case, wooden pallet 

2) EN1092-1 FLANGE 

  • Size range: DN15 to DN2000
  • Design: type01 plate flange, type02 loose flange, type05 blind flange, type11 welding necking 
                 type12 slip on flange, type 13 threaded flange
  • Pressure: PN6, PN10, PN16, PN25, PN40, PN64, PN100
  • Material: carbon steel C22.8, S235, S235JR, P235GH, stainless steel: 304/304L, 316/316L
  • Coating: black paint, yellow transparent paint, cold and hot dip galvanize
  • Package: sea worthy plywooden case, wooden pallet

3) DIN FLANGE 

  • Size range: DN15 to DN2000
  • Design: slip on flange DIN2573,2576,2502,2503, 2543,2545 
                 welding neck falnge DIN2631, 2632,2633,2634,2635 
                  blind flange DIN 2527 PN6, PN10, PN16, PN25, PN40 
                  threaded falnge DIN2565,2566,2567,2567 
                  loose flange DIN 2641,2642,2656,2673
  • Material: carbon steel ST37.2, stainless steel 1.4301, 1.4404 

4) GOST FLANGE 

  • Size range: DN15 to DN 2000
  • Design : plate falnge 12820-80, welding neck flange 12821-80
  • Pressure: PN6, PN10, PN16, PN25, PN40
  • Material: carbon steel CT-20, stainless steel 304/304L, 316/316L
  • Coating: rust-proof oil, cold and hot galvanize
  • Package: sea worthy plywooden case, wooden pallet 

5) JIS B2220 FALNGE 

  • Size ragne : 15A to 2000A
  • Design: SOP, BIND, SOH,
  • Puressure: 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K
  • Material: carbon steel SS400, stainless  steel SUS304, SUS316
  • Coating : rust-proof oil, cold  and hot galvanize
  • Packing: sea worthy plywooden case, wooden pallet

 

Welding Neck Flange

Weld Neck Flange features a neck extension and weld bevel. Provides a natural form connection ideal for larger, high-pressure applications.

 

Blind Flange

Blind Flange has no bore or inner diameter. They are often altered to include NPT threads or custom bore holes to function as hubless Slip On flanges.

Lap Joint Flange

Lap Joint Flanges are intended to saddle over a stub end fitting. They feature an extended hub and a machined radius at the base of the flat face.

Slip On Flange

Slip On Flange is designed to accept the pipe into the center/bore, allowing welding around the outer diameter of the pipe. 

Socket Weld Flange

Socket Weld types have a socket to insert pipe when space limitations make Weld Neck flanges difficult to use. 

Threaded Flange

Threaded Flanges contain a female NPT threaded center for connection to male threaded piping. These flanges are commonly implemented in reducing connections.

 

Pipe flanged Spool type:Seamless & Welded
Value Added Services Provided By Manufacturer:Design, Engineering & Fabrication
Size:114mm to 2500mm diameter (Seamless & Welded, Fabricated)
Operating Pressures:As required/as per drawings
Maximum Velocities : As required/as per drawings
Operating Temperatures:As required/as per drawings
Hydro Tested Pressure:As required/as per drawings
Class :150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard:ND-6,10, 16, 25, 40
Thickness :As required/as per drawings
Specialize:As required/as per drawings
Form :Round, Square, Rectangle Hydraulic, Horn Pipe etc.
Material:Carbon Steel, Stainless Steel, Hastelloy, Alloy Steel, Nickel Alloy, Copper, Duplex Steel & Super duplex
Sizes:By Manufacturer:as per customer specification
Usage/Applications :Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects.

A piping system is a vast network of components each, having its own unique function. Pipe Spools are devices in this vast system, which are pre-fabricated across smaller segments. These components include flanges, fittings, and pipes, which are mounted during the fabrication process and delivered to the consumer. A Pipe Cleaner Spool is prone to corrosion due to their exposure to different environmental elements. This is why we offer these components with enhanced tolerances after processing them further. The Pipe Chain Spool is very reliable and durable

A Pipe Spool Flange can be used in connecting long pipes with the tips of flanges. This enables them to be easily bolted to another pipe or a matching flange. They are widely seen in the construction of power plants, petroleum refineries that require a variety of materials to function well. 

Materials Used in Pre-Fabricated Pipe Spools
Pipes:

Carbon Steel – ASTM A333 grade 6,ASTM  A106, ASTM A53 grade B , API 5L Grade B X42/65/70  (for general and high-pressure applications)
Stainless Steel – ASTM A312 TP304/L, TP316/L, TP321, Duplex S31803. Duper Duplex S32750/S32760
Alloy Steel –ASTM A335 P11, P22, P91,P92 (for high-temperature & pressure applications)

Fittings:Elbow,Tee,reducer.Caps.

Carbon Steel – ASTM  A234 WPB, A420 WPL6
 Stainless Steel – A403 WP304/L, WP316/L, WP321,,S31803. Duper Duplex S32750/S32760
Alloy Steel –ASTM A234 W P11, WP22, WP91,WP92 (for high-temperature & pressure applications)

Flanges

 Carbon Steel – ASTM  A105, ASTM A350 LF2
 Stainless Steel – A182 F304/L, F316/L, F321, F51/F53/F55,S31803. Duper Duplex S32750/S32760
Alloy Steel ,A182 F11,F12,F5,F91,92

Fabricated Pipe Spool Parts

  • Reducer – Concentric reducer, eccentric reducer
  • Pipes – Seamless/Welded
  • Tee – Equal Tee, Unequal Tee
  • Flanges – Blind, weld neck, slip-on, etc.
  • Elbow – 90° / 45° / 180°

 

Our factory produces a variety of pipe fittings.


Flange
Size Range: 1/2” - 120” ( DN 15 - DN 3000)
Rating: 150, 300, 400, 600, 900, 1500, 2500;
Type: Welding Neck, Long Welding neck, Slip on, Blind, Spectacle Blind,Lap joint, Socket weld, Threaded, Orifice, Ring Joint Flange, Spacer and Blank, Anchor Flange, API flange, etc.
Standard:
ANSI B16.5, ANSI B16.47 Series A & Series B, AWWA C207, BS4504,
BS3293, DIN EN1092-1, API590, JIS/KS, ISO 7005-1, JB/T, etc.
Material:
Carbon steel, Low Temperature Carbon Steel, High Yield Carbon Steel,
Plate Material, Low Alloy Steel, Stainless Steel, Duplex
Application:
Can be widely used in the field of Gas, Oil, Pipeline, Water Supply, Electricity and Machinery.
Stainless Steel:
C.S: A36, A105, A266 CL2/CL4, ST37.2, C22.8, S235JR, S355JR
LTCS: A350 LF2 CL1/CL2/LF3
HYCS: A694 F42/F52/F60/F62/F65/F70
Plate: A515 Gr60/70, A516 Gr 60/70, A285 Gr A B C, A240 304, A240 316
LAS: A182 F5, F9, F11 CL1/CL2/CL3, F12 CL1/CL2, F22 CL1/CL3, F91
SS: A182 F304/L, F304H, F316/L, F317/L, F44
Duplex SS: A182 F51/UNS 31803, F53/UNS 32750

Elbow
Product Specification:
Type: Seamless / Welded
Size Range: 1/2” - 24” ( DN 21.3 - DN 610) for Seamless;
26” - 96” ( DN 660 - DN 2438.4) for Welded.
Wall Thickness: SCH 5S - XXS
Style: Long Radius (LR) / Short Radius (SR)
Angle: 45 Degree, 90 Degree, 180 Degree or in specified degree.
Standard:
ASME/ANSI B16.9, ASME B16.28, MSS SP43, DIN2605, DIN2617, DIN2516, JISB2311, etc.
Application:
Can be widely used in the field of Chemical,  Construction, Water Supply, Drainage, Oil, Light & Heavy Industries, Freezing, Sanitation, Fire Control, Electric Power, Aerospace, shipbuilding, etc.

Bend
Product Specification:
Type: Seamless / Welded
Size Range: 1/2” - 24” ( DN 21.3 - DN 610) for Seamless;
26” - 80”( DN 660 - DN 2032) for Welded.
Wall Thickness: SCH 10 - XXS
Style: R=3D R=5D R=7D R=10D or specified Radius
Angle:  From 30 to 180 Degree or in specified degree.
Standard:
ASME B31.4, ASME 31.8, ASME B16.49, JIS, DIN, GB, HG, SH, JB, HGJ, etc.
Material:
Carbon steel, Low Temperature Carbon Steel, High Yield Carbon Steel, Alloy Steel, Stainless Steel.
C.S: ASTM/ASME A234 WPB / WPC, ST37.0, ST35.8, ST45.8
LTCS: A420 WPL6, ASTM/ASME A402 WPL3 / WPL6
HYCS: ASTM/ASME A860 WPHY 42 / 46 / 52 / 60 / 65 / 70
AS: ASTM/ASME A234 WP1 / WP12 / WP11 / WP22 / WP5 / WP9 / WP91 / 15Mo3 / 15CrMoV / 35CrMoV
SS: ASTM/ASME A403 WP304 / 304L / 304H / 304LN / 304N  / 316L / 316H 321H / 347H

Cap
Size:
NPS from 1/2'' to 48'', DN from 12 to 1200,WT: 2-80mm, SCH 40/80/XXS
Material:
Carbon Steel --- ASTM A234 WPB ANSI B 16.9, DIN 2606 N-5 ST.37.0;
Stainless Steel --- ASTM 403 304/304L, 316/316L,316Ti,321,317L,310S;
Alloy Steel --- ASTM A234 WP 1/5/9/11/12/22/91
Bend Radius: 2.5D/3D/4D/5D/6D/7D/8D/9D/10D

Reducer
Outside Diameter:
Seamless Pipe Tee ( 1/2″~24″), ERW / Welded / Fabricated Pipe Tee (1/2″~48″)
Types: Concentric Reducers, Eccentric Reducers
Wall Thickness: 3mm – 40mm / SCH5, SCH10, SCH20, SCH30, SCH40,
STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Tee
Product Specification:
Type: Seamless / Welded
Size Range: 1/2” - 24” ( DN 21.3 - DN 610) for Seamless;
26” - 72” ( DN 660 - DN 1828.8) for Welded
Wall Thickness: SCH 20 - XXS
Style: Equal / Reducing
Process: Cold-Extruded / Hot-Pressed
Standard:
ASME/ANSI B16.9, GB/T12459, GB/T13401, DIN 2615, SH3408,
SH3409-96, SH3410-96, HG/T21635, DL/T 695, SY/T 0510, etc.

Sockolet
Sockolet have a socket into which a plain end. branch pipe is inserted, then fillet welded together. It is a type of self-reinforced branch fitting.
Dimensions:
Standard: MSS SP-97
Size: 1/4 to 4 Inch / DN6 to DN100
Pressure: 3000 LB and 6000LB
Alloy Steel: ASTM A182 F1, F5, F9, F11, F12, F22, F91
Carbon Steel: ASTM A105, A350 LF2,LF3. A694 F52, F60, F65, F70
Stainless Steel: ASTM A182 F304, F316, F317, F321, F310
Duplex Stainless Steel: ASTM A182 F51, F53, F55

Lap Joint Stub Ends
Size range: 1/2” to 36”
Grade: ASME/ASTM SA A234
Type: Long and short lap joint stub ends
Wall Thickness: Schedule 5s, 10s, 20s, Sch10, Sch20, Sch30, STD, Sch40 and etc.
standard of stub end:
ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, ASTM A234, ASME SA234 WPB ,
WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Size

CLASS 150 According to ASTM A/SA-105; ANSI B16.5

Nominal 

Pipe 

Size 

Outside

Diam. of 

Flange (O) 

Thick. 

of 

Flange (C) 

Diam. 

of

Raised Face (R) 

Diam. 

of Hub 

at Base (X) 

Length 

thru Hub 

(Y) 

Min. 

Thread 

Length 

(T) 

Min. 

Counter 

Bore (Q) 

No. of 

Holes 

Diam. of 

Holes 

Diam. of 

Bolts 

Diam.

of Bolt 

Circle 

Approx. 

Weight

 (in Pounds) 

½ 

3.5

0.44

1.38

1.19

0.62

0.62

— 

4

0.62

0.5

2.38

1

¾ 

3.88

0.5

1.69

1.5

0.62

0.62

— 

4

0.62

0.5

2.75

2

1

4.25

0.56

2

1.94

0.69

0.69

— 

4

0.62

0.5

3.12

2

1 ¼ 

4.62

0.62

2.5

2.31

0.81

0.81

— 

4

0.62

0.5

3.5

3

1 ½ 

5

0.69

2.88

2.56

0.88

0.88

— 

4

0.62

0.5

3.88

3

2

6

0.75

3.62

3.06

1

1

— 

4

0.75

0.62

4.75

5

2 ½ 

7

0.88

4.12

3.56

1.12

1.12

— 

4

0.75

0.62

5.5

7

3

7.5

0.94

5

4.25

1.19

1.19

— 

4

0.75

0.62

6

8

3 ½ 

8.5

0.94

5.5

4.81

1.25

1.25

— 

8

0.75

0.62

7

11

4

9

0.94

6.19

5.31

1.31

1.31

— 

8

0.75

0.62

7.5

13

5

10

0.94

7.31

6.44

1.44

1.44

— 

8

0.88

0.75

8.5

15

6

11

1

8.5

7.56

1.56

1.56

— 

8

0.88

0.75

9.5

19

8

13.5

1.12

10.62

9.69

1.75

1.75

— 

8

0.88

0.75

11.75

30

10

16

1.19

12.75

12

1.94

1.94

— 

12

1

0.88

14.25

43

12

19

1.25

15

14.38

2.19

2.19

— 

12

1

0.88

17

64

14

21

1.38

16.25

15.75

2.25

2.25

— 

12

1.12

1

18.75

90

16

23.5

1.44

18.5

18

2.5

2.5

— 

16

1.12

1

21.25

98

18

25

1.56

21

19.88

2.69

2.69

— 

16

1.25

1.13

22.75

130

20

27.5

1.69

23

22

2.88

2.88

— 

20

1.25

1.12

25

165

24

32

1.88

27.25

26.12

3.25

3.25

— 

20

1.38

1.25

29.5

220

 

 

 

CLASS 300 According to ASTM A/SA-105; ANSI B16.5

Nominal 

Pipe 

Size  

Outside

Diam. of 

Flange (O)  

Thick. 

of 

Flange (C)  

Diam. 

of

Raised Face 

(R)

Diam. 

of Hub 

at Base 

(X)

Length 

thru Hub 

(Y) 

Min. 

Thread 

Length 

(T) 

Min. 

Counter Bore 

(Q) 

No. of 

Holes 

Diam. of 

Holes 

Diam.

of Bolts 

Diam.

of Bolt 

Circle 

Approx.

Weight 

(in Pounds) 

1/2

3.75

0.56

1.38

1.5

0.88

0.62

0.93

4

0.62

0.5

2.62

2

3/4

4.62

0.62

1.69

1.88

1

0.62

1.14

4

0.75

0.62

3.25

3

1

4.88

0.69

2

2.12

1.06

0.69

1.41

4

0.75

0.62

3.5

3

1 1/4

5.25

0.75

2.5

2.5

1.06

0.81

1.75

4

0.75

0.62

3.88

4

1 1/2

6.12

0.81

2.88

2.75

1.19

0.88

1.99

4

0.88

0.75

4.5

6

2

6.5

0.88

3.62

3.31

1.31

1.12

2.5

8

0.75

0.62

5

7

2 1/2

7.5

1

4.12

3.94

1.5

1.25

3

8

0.88

0.75

5.88

10

3

8.25

1.12

5

4.62

1.69

1.25

3.63

8

0.88

0.75

6.62

13

3 1/2

9

1.19

5.5

5.25

1.75

1.44

4.13

8

0.88

0.75

7.25

17

4

10

1.25

6.19

5.75

1.88

1.44

4.63

8

0.88

0.75

7.88

22

5

11

1.38

7.31

7

2

1.69

5.69

8

0.88

0.75

9.25

28

6

12.5

1.44

8.5

8.12

2.06

1.81

6.75

12

0.88

0.75

10.62

39

8

15

1.62

10.62

10.25

2.44

2

8.75

12

1

0.88

13

58

10

17.5

1.88

12.75

12.62

2.62

2.19

10.88

16

1.12

1

15.25

81

12

20.5

2

15

14.75

2.88

2.38

12.94

16

1.25

1.12

17.75

115

14

23

2.12

16.25

16.75

3

2.5

14.19

20

1.25

1.12

20.25

165

16

25.5

2.25

18.5

19

3.25

2.69

16.19

20

1.38

1.25

22.5

190

18

28

2.38

21

21

3.5

2.75

18.19

24

1.38

1.25

24.75

250

20

30.5

2.5

23

23.12

3.75

2.88

20.19

24

1.38

1.25

27

315

24

36

2.75

27.25

27.62

4.19

3.25

24.19

24

1.62

1.5

32

475

 

 

 

CLASS 600 According to ASTM A/SA-105; ANSI B16.5

Nominal 

Pipe 

Size  

Outside

Diam. of 

Flange (O)

Thick. 

of 

Flange 

(C)

Diam. 

of

Raised Face 

(R)

Diam. 

of Hub 

at Base (X)

Length 

thru Hub 

(Y) 

Min. 

Thread 

Length 

(T) 

Min. 

Counter 

Bore 

(Q) 

No. of 

Holes 

Diam. of 

Holes 

Diam. of 

Bolts 

Diam. of 

Bolt Circle 

Approx. 

Weight 

(in Pounds) 

1/2

3.75

0.56

1.38

1.5

0.88

0.62

0.93

4

0.62

0.5

2.62

2

3/4

4.62

0.62

1.69

1.88

1

0.62

1.14

4

0.75

0.62

3.25

3

1

4.88

0.69

2

2.12

1.06

0.69

1.41

4

0.75

0.62

3.5

4

1 1/4

5.25

0.81

2.5

2.5

1.12

0.81

1.75

4

0.75

0.62

3.88

5

1 1/2

6.12

0.88

2.88

2.75

1.25

0.88

1.99

4

0.88

0.75

4.5

7

2

6.5

1

3.62

3.31

1.44

1.12

2.5

8

0.75

0.62

5

9

2 1/2

7.5

1.12

4.12

3.94

1.62

1.25

3

8

0.88

0.75

5.88

13

3

8.25

1.25

5

4.62

1.81

1.38

3.63

8

0.88

0.75

6.62

16

3 1/2

9

1.38

5.5

5.25

1.94

1.56

4.13

8

1

0.88

7.25

21

4

10.75

1.5

6.19

6

2.12

1.62

4.63

8

1

0.88

8.5

37

5

13

1.75

7.31

7.44

2.38

1.88

5.69

8

1.12

1

10.5

63

6

14

1.88

8.5

8.75

2.62

2

6.75

12

1.12

1

11.5

80

8

16.5

2.19

10.62

10.75

3

2.25

8.75

12

1.25

1.12

13.75

115

10

20

2.5

12.75

13.5

3.38

2.56

10.88

16

1.38

1.25

17

170

12

22

2.62

15

15.75

3.62

2.75

12.94

20

1.38

1.25

19.25

200

14

23.75

2.75

16.25

17

3.69

2.88

14.19

20

1.5

1.38

20.75

230

16

27

3

18.5

19.5

4.19

3.06

16.19

20

1.62

1.5

23.75

330

18

29.25

3.25

21

21.5

4.62

3.12

18.19

20

1.75

1.63

25.75

400

20

32

3.5

23

24

5

3.25

20.19

24

1.75

1.62

28.5

510

24

37

4

27.25

28.25

5.5

3.62

24.19

24

2

1.88

33

730

 

 

 

CLASS 900According to ASTM A/SA-105; ANSI B16.5

Nominal 

Pipe 

Size 

Outside

Diam. of 

Flange (O)

Thick. 

of 

Flange 

(C)

Diam. 

of

Raised Face 

(R)

Diam. 

of Hub 

at Base 

(X)

Length 

thru Hub (Y) 

Min.

Thread 

Length 

(T) 

Min.

Counter 

Bore 

(Q) 

No. of

Holes 

Diam. of

Holes 

Diam. of

Bolts 

Diam. of

Bolt Circle 

Approx.

 Weight 

(in Pounds) 

1/2

4.75

0.88

1.38

1.5

1.25

0.88

0.93

4

0.88

0.75

3.25

4

3/4

5.12

1

1.69

1.75

1.38

1

1.14

4

0.88

0.75

3.5

5

1

5.88

1.12

2

2.06

1.62

1.12

1.41

4

1

0.88

4

8

1 1/4

6.25

1.12

2.5

2.5

1.62

1.19

1.75

4

1

0.88

4.38

9

1 1/2

7

1.25

2.88

2.75

1.75

1.25

1.99

4

1.12

1

4.88

12

2

8.5

1.5

3.62

4.12

2.25

1.5

2.5

8

1

0.88

6.5

25

2 1/2

9.62

1.62

4.12

4.88

2.5

1.88

3

8

1.12

1

7.5

36

3

9.5

1.5

5

5

2.12

1.62

3.63

8

1

0.88

7.5

26

4

11.5

1.75

6.19

6.25

2.75

1.88

4.63

8

1.25

1.12

9.25

53

5

13.75

2

7.31

7.5

3.12

2.12

5.69

8

1.38

1.25

11

83

6

15

2.19

8.5

9.25

3.38

2.25

6.75

12

1.25

1.12

12.5

110

8

18.5

2.5

10.62

11.75

4.00

2.50

8.75

12

1.5

1.38

15.5

170

10

21.5

2.75

12.75

14.5

4.25

2.81

10.88

16

1.5

1.38

18.5

245

12

24

3.12

15

16.5

4.62

3

12.94

20

1.5

1.38

21

325

14

25.25

3.38

16.25

17.75

5.12

3.25

14.19

20

1.62

1.5

22

400

16

27.75

3.5

18.5

20

5.25

3.38

16.19

20

1.75

1.63

24.25

425

18

31

4

21

22.25

6

3.5

18.19

20

2

1.88

27

600

20

33.75

4.25

23

24.5

6.25

3.62

20.19

20

2.12

2

29.5

730

24

41

5.5

27.25

29.5

8

4

24.19

20

2.62

2.5

35.5

1400

 

 

 

CLASS 1500 According to ASTM A/SA-105; ANSI B16.5

Nominal 

Pipe 

Size

Outside

Diam. of 

Flange (O)

Thick. 

of 

Flange 

(C) 

Diam. 

of

Raised Face 

(R)

Diam. 

of Hub 

at Base 

(X)

Length 

thru Hub 

(Y) 

Min. 

Thread 

Length 

(T) 

Min. 

Counter 

Bore 

(Q) 

No. of 

Holes 

Diam. of 

Holes 

Diam. of 

Bolts 

Diam. of 

Bolt Circle 

Approx. 

Weight 

(in Pounds) 

1/2

4.75

0.88

1.38

1.5

1.25

0.88

0.93

4

0.88

0.75

3.25

4

3/4

5.12

1

1.69

1.75

1.38

1

1.14

4

0.88

0.75

3.5

5

1

5.88

1.12

2

2.06

1.62

1.12

1.41

4

1

0.88

4

8

1 1/4

6.25

1.12

2.5

2.5

1.62

1.19

1.75

4

1

0.88

4.38

9

1 1/2

7

1.25

2.88

2.75

1.75

1.25

1.99

4

1.12

1

4.88

12

2

8.5

1.5

3.62

4.12

2.25

1.5

2.5

8

1

0.88

6.5

25

2 1/2

9.62

1.62

4.12

4.88

2.5

1.88

3

8

1.12

1

7.5

36

 

Standard

 

Standard

Specification

ASTM A105

Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A350

Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components

ASTM A182

Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

ASTM A404

Specification for Forged or Rolled Alloy Steel Pip Flanges, Forged Fittings, and Valves and Parts Specially Heat Treated for High-Temperature Service (Withdrawn 1974)

ASTM A234

Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

ASTM A420

Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service

ASTM A403

Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

ASTM A694

Standard Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service

 

 

Process

Production Process

Flange Proction Process

Packaging

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