Forged Flanges Standard, ASME B16.5 Forged Flange, Forged Flange Manufacturers India.

  • Forged Flange Manufacturer India

Forged Flange Material, Forged Flange Meaning, Forged Flanges Manufacturing Process, Forged Flange VS Plate Flanges, Forged Flange Suppliers.

Standard Specification For Forged Flange

Size 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Pressure Rate 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Facing Types Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove
Value Added Services Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Forgedd, Cold and Hot Dip Galvanized
Dimensions ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Material ASTM A182 F304/304L, ASTM A182 F310, ASTM A182 F316/316L, ASTM A182 F321
Production Technique Forged, Heat Treated and Machined
Manufacturers of Forged Flanges
  • Raccortubi S.P.A., Italy
  • Erne Fittings, Austria
  • Melesi, Italy
  • Mega, Italy
  • Ulma, Spain
  • TecnoForge, Italy
  • BENKAN Corporation, Japan
  • BKL- Thai Benkan, Thailand
  • Lame S.R.l., Italy
  • Metal Far, Italy
ANSI ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
BS BS4504 , BS4504, BS1560, BS10
JIS 5K, 10K, 16K 20K, 30K, 40K, 63K
Test Direct-reading Spectrograph,Hydrostatic testing machine,X-ray detector,UI trasonic flaw detector,Magnetic particle detector
Origin West Europe / Japan / Indian / USA / Korean
Equipments Press Machine, Bending Machine, Pushing Machine, Electric Bevelling Machine, Sand-Blasting Machine, etc.

Forged Flange Material

Stainless Steel Forged Flange : 
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel Forged Flange : 
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel Forged Flange : 
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706

Low Temperature Carbon Steel Slip on Flanges : ASTM A350, LF2, LF3

Alloy Steel Forged Flange : 
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel Forged Flange : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200

Nickel Forged Flange : 
Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201)

Monel Alloy Forged Flange : 
Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)

Special Alloy Forged Flange : 
Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Hastelloy B2, Alloy 20 (UNS No. N08020)

Forged Flange Dimensions
Forged Flange Dimensions

Class 150 Forged Flange Dimensions

Nom. Pipe Size O T TJ R X #/Dia of Holesa Bolt Circle Dia B B2b B3 H L L2 L3c r D Thr
½ 3.50 0.38 0.44 1.38 1.19 4-0.62 2.38 0.88 0.62 0.90 0.84 0.56 1.81 0.62 0.12 0.38 0.62
¾ 3.88 0.44 0.50 1.69 1.50 4-0.62 2.75 1.09 0.82 1.11 1.05 0.56 2.00 0.62 0.12 0.44 0.62
1 4.25 0.50 0.56 2.00 1.94 4-0.62 3.12 1.36 1.05 1.38 1.32 0.62 2.12 0.69 0.12 0.50 0.69
4.62 0.56 0.62 2.50 2.31 4-0.62 3.50 1.70 1.38 1.72 1.66 0.75 2.19 0.81 0.19 0.56 0.81
5.00 0.62 0.69 2.88 2.56 4-0.62 3.88 1.95 1.61 1.97 1.90 0.81 2.38 0.88 0.25 0.62 0.88
2 6.00 0.69 0.75 3.62 3.06 4-0.75 4.75 2.44 2.07 2.46 2.38 0.94 2.44 1.00 0.31 0.69 1.00
7.00 0.81 0.88 4.12 3.56 4-0.75 5.50 2.94 2.47 2.97 2.88 1.06 2.69 1.12 0.31 0.75 1.12
3 7.50 0.88 0.94 5.00 4.25 4-0.75 6.00 3.57 3.07 3.60 3.50 1.12 2.69 1.19 0.38 0.81 1.19
8.50 0.88 0.94 5.50 4.81 8-0.75 7.00 4.07 3.55 4.10 4.00 1.19 2.75 1.25 0.38 0.88 1.25
4 9.00 0.88 0.94 6.19 5.31 8-0.75 7.50 4.57 4.03 4.60 4.50 1.25 2.94 1.31 0.44 0.94 1.31
5 10.00 0.88 0.94 7.31 6.44 8-0.88 8.50 5.66 5.05 5.69 5.56 1.38 3.44 1.44 0.44 0.94 1.44
6 11.00 0.94 1.00 8.50 7.56 8-0.88 9.50 6.72 6.07 6.75 6.63 1.50 3.44 1.56 0.50 1.06 1.56
8 13.50 1.06 1.12 10.62 9.69 8-0.88 11.75 8.72 7.98 8.75 8.63 1.69 3.94 1.75 0.50 1.25 1.75
10 16.00 1.12 1.19 12.75 12.00 12-1.00 14.25 10.88 10.02 10.92 10.75 1.88 3.94 1.94 0.50 1.31 1.94
12 19.00 1.19 1.25 15.00 14.38 12-1.00 17.00 12.88 12.00 12.92 12.75 2.12 4.44 2.19 0.50 1.56 2.19
14 21.00 1.31 1.38 16.25 15.75 12-1.12 18.75 14.14 13.25 14.18 14.00 2.19 4.94 3.12 0.50 1.63 2.25
16 23.50 1.38 1.44 18.50 18.00 16-1.12 21.25 16.16 15.25 16.19 16.00 2.44 4.94 3.44 0.50 1.75 2.50
18 25.00 1.50 1.56 21.00 19.88 16-1.25 22.75 18.18 17.25 18.20 18.00 2.62 5.44 3.81 0.50 1.94 2.69
20 27.50 1.62 1.69 23.00 22.00 20-1.25 25.00 20.20 19.25 20.25 20.00 2.81 5.62 4.06 0.50 2.13 2.88
22 29.50 1.75 1.81 25.25 24.25 20-1.38 27.25 22.22 21.25 22.25 22.00 3.07 5.82 4.25 0.50 2.38 3.13
24 32.00 1.81 1.88 27.25 26.12 20-1.38 29.50 24.25 23.25 24.25 24.00 3.19 5.94 4.38 0.50 2.50 3.25

Class 300 Forged Flange Dimensions

Nom. Pipe Size O T TJ R X #/Dia of Holesa Bolt Circle Dia B B2b B3 H L L2 L3c r C D Thr
½ 3.75 0.50 0.56 1.38 1.50 4-0.63 2.62 0.88 0.62 0.90 0.84 0.81 2.00 0.88 0.12 0.93 0.38 0.62
¾ 4.62 0.56 0.62 1.69 1.88 4-0.75 3.25 1.09 0.82 1.11 1.05 0.94 2.19 1.00 0.12 1.14 0.44 0.62
1 4.88 0.62 0.69 2.00 2.12 4-0.75 3.50 1.36 1.05 1.38 1.32 1.00 2.38 1.06 0.12 1.41 0.50 0.69
5.25 0.69 0.75 2.50 2.50 4-0.75 3.88 1.70 1.38 1.72 1.66 1.00 2.50 1.06 0.19 1.75 0.56 0.81
6.12 0.75 0.81 2.88 2.75 4-0.88 4.50 1.95 1.61 1.97 1.90 1.13 2.63 1.19 0.25 1.98 0.62 0.88
2 6.50 0.81 0.88 3.62 3.31 8-0.75 5.00 2.44 2.07 2.46 2.38 1.25 2.69 1.31 0.31 2.50 0.69 1.12
7.50 0.94 1.00 4.12 3.94 8-0.88 5.88 2.94 2.47 2.97 2.88 1.44 2.94 1.50 0.31 3.00 0.75 1.25
3 8.25 1.06 1.12 5.00 4.62 8-0.88 6.62 3.57 3.07 3.60 3.50 1.63 3.06 1.69 0.38 3.63 0.81 1.25
9.00 1.12 1.19 5.50 5.25 8-0.88 7.25 4.07 3.55 4.10 4.00 1.69 3.13 1.75 0.38 4.13 …. 1.44
4 10.00 1.19 1.25 6.19 5.75 8-0.88 7.88 4.57 4.03 4.60 4.50 1.82 3.32 1.88 0.44 4.63 …. 1.44
5 11.00 1.31 1.38 7.31 7.00 8-0.88 9.25 5.66 5.05 5.69 5.56 1.94 3.82 2.00 0.44 5.69 …. 1.69
6 12.50 1.38 1.44 8.50 8.12 12-0.88 10.62 6.72 6.07 6.75 6.63 2.00 3.82 2.06 0.50 6.75 …. 1.81
8 15.00 1.56 1.62 10.62 10.25 12-1.00 13.00 8.72 7.98 8.75 8.63 2.38 4.32 2.44 0.50 8.75 …. 2.00
10 17.50 1.81 1.88 12.75 12.62 16-1.12 15.25 10.88 10.02 10.92 10.75 2.56 4.56 3.75 0.50 10.88 …. 2.19
12 20.50 1.94 2.00 15.00 14.75 16-1.25 17.75 12.88 12.00 12.92 12.75 2.82 5.06 4.00 0.50 12.94 …. 2.38
14 23.00 2.06 2.12 16.25 16.75 20-1.25 20.25 14.14 13.25 14.18 14.00 2.94 5.56 4.38 0.50 14.19 …. 2.50
16 25.50 2.19 2.25 18.50 19.00 20-1.38 22.50 16.16 15.25 16.19 16.00 3.19 5.69 4.75 0.50 16.19 …. 2.69
18 28.00 2.31 2.38 21.00 21.00 24-1.38 24.75 18.18 17.25 18.20 18.00 3.44 6.19 5.12 0.50 18.19 …. 2.75
20 30.50 2.44 2.50 23.00 23.12 24-1.38 27.00 20.20 19.25 20.25 20.00 3.69 6.32 5.50 0.50 20.19 …. 2.88
22 33.00 2.57 2.63 25.25 25.25 24-1.63 29.25 22.22 21.25 22.25 22.00 3.93 6.43 5.75 0.50 22.19 …. 3.13
24 36.00 2.69 2.75 27.25 27.62 24-1.63 32.00 24.25 23.25 24.25 24.00 4.13 6.56 6.00 0.50 24.19 …. 3.25

Class 600 Forged Flange Dimensions

Nom. Pipe Size O T R X #/Dia of Holesa Bolt Circle Dia B B2b B3 H L L2 L3c r C D Thr
½ 3.75 0.56 1.38 1.5 4-0.63 2.62 0.88 0.9 0.84 0.88 2.06 0.88 0.12 0.93 0.38 0.62
¾ 4.62 0.62 1.69 1.88 4-0.75 3.25 1.09 1.11 1.05 1 2.25 1 0.12 1.14 0.44 0.62
1 4.88 0.69 2 2.12 4-0.75 3.5 1.36 1.38 1.32 1.06 2.44 1.06 0.12 1.41 0.5 0.69
5.25 0.81 2.5 2.5 4-0.75 3.88 1.7 1.72 1.66 1.12 2.62 1.12 0.19 1.75 0.56 0.81
6.12 0.88 2.88 2.75 4-0.88 4.5 1.95 1.97 1.9 1.25 2.75 1.25 0.25 1.99 0.62 0.88
2 6.5 1 3.62 3.31 8-0.75 5 2.44 2.46 2.38 1.44 2.88 1.44 0.31 2.5 0.69 1.12
7.5 1.12 4.12 3.94 8-0.88 5.88 2.94 2.97 2.88 1.62 3.12 1.62 0.31 3 0.75 1.25
3 8.25 1.25 5 4.62 8-0.88 6.62 3.57 3.6 3.5 1.81 3.25 1.81 0.38 3.63 0.81 1.38
9 1.38 5.5 5.25 8-1.00 7.25 4.07 4.1 4 1.94 3.38 1.94 0.38 4.13 …. 1.56
4 10.75 1.5 6.19 6 8-1.00 8.5 4.57 4.6 4.5 2.12 4 2.12 0.44 4.63 …. 1.62
5 13 1.75 7.31 7.44 8-1.12 10.5 5.66 5.69 5.56 2.38 4.5 2.38 0.44 5.69 …. 1.88
6 14 1.88 8.5 8.75 12-1.12 11.5 6.72 6.75 6.63 2.62 4.62 2.62 0.5 6.75 …. 2
8 16.5 2.19 10.62 10.75 12-1.25 13.75 8.72 8.75 8.63 3 5.25 3 0.5 8.75 …. 2.25
10 20 2.5 12.75 13.5 16-1.38 17 10.88 10.92 10.75 3.38 6 4.38 0.5 10.88 …. 2.56
12 22 2.62 15 15.75 20-1.38 19.25 12.88 12.92 12.75 3.62 6.12 4.62 0.5 12.94 …. 2.75
14 23.75 2.75 16.25 17 20-1.50 20.75 14.14 14.18 14 3.69 6.5 5 0.5 14.19 …. 2.88
16 27 3 18.5 19.5 20-1.63 23.75 16.16 16.19 16 4.19 7 5.5 0.5 16.19 …. 3.06
18 29.25 3.25 21 21.5 20-1.75 25.75 18.18 18.2 18 4.62 7.25 6 0.5 18.19 …. 3.12
20 32 3.5 23 24 24-1.75 28.5 20.2 20.25 20 5 7.5 6.5 0.5 20.19 …. 3.25
22 34.25 3.75 25.25 26.25 24-1.75 30.63 22.22 22.25 22 5.25 7.75 6.88 0.5 …. …. --
24 37 4 27.25 28.25 24-2.00 33 24.25 24.25 24 5.5 8 7.25 0.5 24.19 …. 3.62

Class 900 Forged Flange Dimensions

Nom. Pipe Size O T R X #/Dia of Holesa Bolt Circle Dia B B2b B3 H L L2 L3c r C Thr
Sizes 1/2" through 2 1/2" are identical to class 1500.
3 9.5 1.5 5 5 8-1.00 7.5 3.57 3.6 3.5 2.12 4 2.12 0.38 3.63 1.62
4 11.5 1.75 6.19 6.25 8-1.25 9.25 4.57 4.6 4.5 2.75 4.5 2.75 0.44 4.63 1.88
5 13.75 2 7.31 7.5 8-1.38 11 5.66 5.69 5.56 3.12 5 3.12 0.44 5.69 2.12
6 15 2.19 8.5 9.25 12-1.25 12.5 6.72 6.75 6.63 3.38 5.5 3.38 0.5 6.75 2.25
8 18.5 2.5 10.63 11.75 12-1.50 15.5 8.72 8.75 8.63 4 6.38 4.5 0.5 8.75 2.5
10 21.5 2.75 12.75 14.5 16-1.50 18.5 10.88 10.92 10.75 4.25 7.25 5 0.5 10.88 2.81
12 24 3.12 15 16.5 20-1.50 21 12.88 12.92 12.75 4.63 7.88 5.62 0.5 12.94 3
14 25.25 3.38 16.25 17.75 20-1.63 22 14.14 14.18 14 5.12 8.38 6.12 0.5 14.19 3.25
16 27.75 3.5 18.5 20 20-1.75 24.25 16.16 16.19 16 5.25 8.5 6.5 0.5 16.19 3.38
18 31 4 21 22.25 20-2.00 27 18.18 18.2 18 6 9 7.5 0.5 18.19 3.5
20 33.75 4.25 23 24.5 20-2.13 29.5 20.2 20.25 20 6.25 9.75 8.25 0.5 20.19 3.62
24 41 5.5 27.25 29.5 20-2.63 35.5 24.25 24.25 24 8 11.5 10.5 0.5 24.19 4

Class 1500 Forged Flange Dimensions

Nom. Pipe Size O T R X #/Dia of Holesa Bolt Circle Dia B B2b B3 H L L2 L3c r C D Thr
½ 4.75 0.88 1.38 1.5 4-0.88 3.25 0.88 0.9 0.84 1.25 2.38 1.25 0.12 0.93 0.38 0.88
¾ 5.12 1 1.69 1.75 4-0.88 3.5 1.09 1.11 1.05 1.38 2.75 1.38 0.12 1.14 0.44 1
1 5.88 1.12 2 2.06 4-1.00 4 1.36 1.38 1.32 1.62 2.88 1.62 0.12 1.41 0.5 1.12
6.25 1.12 2.5 2.5 4-1.00 4.38 1.7 1.72 1.66 1.62 2.88 1.62 0.19 1.75 0.56 1.19
7 1.25 2.88 2.75 4-1.12 4.88 1.95 1.97 1.9 1.75 3.25 1.75 0.25 1.99 0.62 1.25
2 8.5 1.5 3.63 4.12 8-1.00 6.5 2.44 2.46 2.38 2.25 4 2.25 0.31 2.5 0.69 1.5
9.62 1.62 4.13 4.88 8-1.12 7.5 2.94 2.97 2.88 2.5 4.12 2.5 0.31 3 0.75 1.88
3 10.5 1.88 5 5.25 8-1.25 8 …. 3.6 3.5 …. 4.62 2.88 0.38 …. …. ….
4 12.25 2.12 6.19 6.38 8-1.38 9.5 …. 4.6 4.5 …. 4.88 3.56 0.44 …. …. ….
5 14.75 2.88 7.31 7.75 8-1.63 11.5 …. 5.69 5.56 …. 6.12 4.12 0.44 …. …. ….
6 15.5 3.25 8.5 9 12-1.50 12.5 …. 6.75 6.63 …. 6.75 4.69 0.5 …. …. ….
8 19 3.62 10.63 11.5 12-1.75 15.5 …. 8.75 8.63 …. 8.38 5.62 0.5 …. …. ….
10 23 4.25 12.75 14.5 12-2.00 19 …. 10.92 10.75 …. 10 7 0.5 …. …. ….
12 26.5 4.88 15 17.75 16-2.12 22.5 …. 12.92 12.75 …. 11.12 8.62 0.5 …. …. ….
14 29.5 5.25 16.25 19.5 16-2.38 25 …. 14.18 14 …. 11.75 9.5 0.5 …. …. ….
16 32.5 5.75 18.5 21.75 16-2.63 27.75 …. 16.19 16 …. 12.25 10.25 0.5 …. …. ….
18 36 6.38 21 23.5 16-2.88 30.5 …. 18.2 18 …. 12.88 10.88 0.5 …. …. ….
20 38.75 7 23 25.25 16-3.12 32.75 …. 20.25 20 …. 14 11.5 0.5 …. …. ….
24 46 8 27.25 30 16-3.63 39 …. 24.25 24 …. 16 13 0.5 …. …. ….

Class 2500 Forged Flange Dimensions

Nom. Pipe Size O T R X #/Dia of Holesa Bolt Circle Dia B2b B3 H L L2 L3 r C Thr
½ 5.25 1.19 1.38 1.69 4-0.88 3.5 0.9 0.84 1.56 2.88 1.56 0.12 0.93 1.12
¾ 5.5 1.25 1.69 2 4-0.88 3.75 1.11 1.05 1.69 3.12 1.69 0.12 1.14 1.25
1 6.25 1.38 2 2.25 4-1.00 4.25 1.38 1.32 1.88 3.5 1.88 0.12 1.41 1.38
7.25 1.5 2.5 2.88 4-1.12 5.13 1.72 1.66 2.06 3.75 2.06 0.19 1.75 1.5
8 1.75 2.88 3.12 4-1.25 5.75 1.97 1.9 2.38 4.38 2.38 0.25 1.99 1.75
2 9.25 2 3.63 3.75 8-1.12 6.75 2.46 2.38 2.75 5 2.75 0.31 2.5 2
10.5 2.25 4.13 4.5 8-1.25 7.75 2.97 2.88 3.12 5.62 3.12 0.31 3 2.25
3 12 2.62 5 5.25 8-1.38 9 3.6 3.5 …. 6.62 3.62 0.38 …. ….
4 14 3 6.19 6.5 8-1.63 10.75 4.6 4.5 …. 7.5 4.25 0.44 …. ….
5 16.5 3.62 7.31 8 8-1.88 12.75 5.69 5.56 …. 9 5.12 0.44 …. ….
6 19 4.25 8.5 9.25 8-2.12 14.5 6.75 6.63 …. 10.75 6 0.5 …. ….
8 21.75 5 10.63 12 12-2.12 17.25 8.75 8.63 …. 12.5 7 0.5 …. ….
10 26.5 6.5 12.75 14.75 12-2.63 21.25 10.92 10.75 …. 16.5 9 0.5 …. ….
12 30 7.25 15 17.38 12-2.88 24.38 12.92 12.75 …. 18.25 10 0.5 …. ….

Forged Flanges Weight Chart
CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
150 lb ½  1 1 2 1 2 2
  ¾ 2 2 2 2 2 2
  1 2 2 2 2 2 3
  3 3 3 3 3 3
  1½  3 3 3 3 4 4
  2    5 5 5 5 5 6
  2½  8 8 8 8 7 10
  3    9 9 9 9 9 11.5
  3½  11 12 11 11 13 12
  4    13 13 13 13 17 16.5
  5    15 15 15 15 20 21
  6    19 19 19 19 27 26
  8    30 30 30 30 47 42
  10    43 43 43 43 70 54
  12    64 64 64 64 123 88
  14    90 90 90 105 140 114
  16    106 98 98 140 180 140
  18    130 130 130 160 220 165
  20    165 165 165 195 285 197
  22    185 185 185 245 355 225
  24    220 220 220 275 430 268
CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
300 lb ½ 2 2 3 2 2 2
  ¾ 3 3 3 3 3 3
  1    3 3 3 3 4 4
  4.5 4.5 4 4.5 6 5
  1½  6.5 6.5 6 6.5 7 7
  2    7 7 7 7 8 9
  2½  10 10 10 10 12 12
  3    13 14 13 14.5 16 18
  3½  17 17 17 17 21 20
  4    23.5 24 22 24 28 26.5
  5    29 31 28 28 37 36
  6    39 39 39 39 50 45
  8 58 58 58 58 81 69
  10 81 81 81 91 124 100
  12 115 115 115 140 185 142
  14 165 165 165 190 250 206
  16 210 220 190 234 315 250
  18 253 280 250 305 414 320
  20 315 325 315 375 515 400
  22 370 370 370 435 640 465
  24 490 490 475 550 800 580
CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
400 lb ½  2 2 2 2 2 3
  ¾ 3 3 3 3 3 3.5
  1 3.5 3.5 3.5 3.5 4 4
  4.5 4.5 4.5 4.5 6 4.5
  1½  6.5 6.5 6.5 6.5 8 8
  2    8 8 8 8 10 10
  2½  12 12 12 11 15 14
  3    15 15 15 14 20 18
  3½  21 21 21 20 29 26
  4    26 26 26 25 33 35
  5    31 31 31 29 44 43
  6    44 44 44 42 61 57
  8    67 67 67 64 100 89
  10    91 91 91 110 155 125
  12    130 130 130 152 226 175
  14    191 191 191 210 310 233
  16    253 253 253 280 398 295
  18    310 310 310 345 502 360
  20    378 378 378 420 621 445
  22    405 405 405 455 720 505
  24    539 539 539 615 936 640

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
600 lb ½ 2 2 2 2 3 3
  ¾ 3 3 3 3 4 4
  1    4 4 4 4 4 4
  5 5 5 5 6 6
  1½  7 7 7 7 8 8
  2    9 9 9 9 10 12
  2½  13 13 13 12 15 18
  3    16 16 16 15 20 23
  3½  21 21 21 20 29 26
  4    37 37 37 36 41 42
  5    63 63 63 63 68 68
  6    80 80 80 78 86 81
  8 115 115 115 112 140 120
  10 177 177 177 195 231 190
  12 215 215 215 240 295 226
  14 259 259 259 290 378 347
  16 366 366 366 400 527 481
  18 476 476 476 469 665 555
  20 612 612 612 604 855 690
  22 590 590 590 670 1000 720
  24 876 876 876 866 1250 977

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
900 lb ½  6 6 6 6 4 7
  ¾ 6 6 6 6 6 7
  1 7.5 7.5 7.5 7.5 9 8.5
  10 10 10 10 10 10
  1½  14 14 14 14 14 14
  2    22 22 22 21 25 24
  2½  31 31 31 25 32 31
  3    36 36 36 29 35 36
  4    53 53 53 51 54 53
  5    83 83 83 81 87 86
  6    110 110 110 105 115 110
  8    172 172 172 190 200 187
  10    245 245 245 277 290 268
  12    326 326 326 371 415 372
  14    400 400 400 415 520 562
  16    459 459 459 488 619 685
  18    647 647 647 670 880 924
  20    792 792 792 868 1107 1164
  24    1480 1480 1480 1659 2099 2107

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
1500 lb ½ 6 6 6 6 4 7
  ¾ 6 6 6 6 6 7
  1    8 8 8 8 9 9
  10 10 10 10 10 10
  1½  14 14 14 14 14 14
  2    25 25 25 25 25 25
  2½  36 36 36 35 35 36
  3    48 48 48 47 48 48
  4    73 73 73 75 73 73
  5    132 132 132 140 140 132
  6    165 165 165 170 160 165
  8    260 260 260 286 302 275
  10 436 436 436 485 510 455
  12 667 667 667 749 775 690
  14 940 940 940 890 975 940
  16 1250 1250 1250 1250 1300 1250
  18 1625 1625 1625 1475 1750 1625
  20 2050 2050 2050 1775 2225 2050
  24 2825 2825 2825 2825 3625 3325

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
2500 lb ½  …. 7 …. 7 7 8
  ¾ …. 9 …. 8 10 9
  1 …. 12 …. 12 12 13
  …. 18 …. 17 18 20
  1½  …. 25 …. 24 25 28
  2    …. 38 …. 37 39 42
  2½  …. 55 …. 53 56 52
  3    …. 83 …. 80 86 94
  4    …. 127 …. 122 133 146
  5    …. 210 …. 204 223 244
  6    …. 323 …. 314 345 378
  8    …. 485 …. 471 533 576
  10    …. 925 …. 897 1025 1068
  12    …. 1300 …. 1262 1464 1608
Forged Flange Application Industries
  • Air Pollution Control- Scrubbers for Coal-Fired Power Plants
  • Seawater Cooling Devices
  • Architectural railings
  • Wiring In Electrostatic Precipitators
  • Oil Refinery
  • Gas Scrubbing Plants
  • Pulp and Paper Processing Industries
  • Acetic, Phosphoric and Sulphuric Acid Processing Plants
  • Oil and Gas Production - offshore process equipment Offshore, sea water technology, chemical industry, good stability against reducing acids of medium strength like sulphuric acid and phosphoric acid and various chloric media, refinery, paper industry, pulp industry
Properties of Forged Flanges
  • Excellent corrosion resistance in a wide range of atmospheric environments
  • Good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C
  • Good resistance to carbide precipitation
  • Good machining properties
  • 304/304L offers higher strength at elevated temperatures
  • Excellent weldability with and without filler metals
Forged Flanges Delivery Time
  • Malaysia = 15 to 18 Days
  • Indonesia = 20 to 25 Days
  • UK = 30 to 40 Days
  • Thailand = 15 to 20 Days
  • US = 40 to 60 Days
  • Germany = 30 to 40 Days
  • Philippines = 30 to 40 Days
  • For All Gulf Countries = 10 to 15 Days
  • For All European Countries = 30 to 40 Days
Our Global Market