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ANSI B16.5 Forged Flange, Forged Steel Flange Dimensions

Forged Pipe Flange, Hot Forged Flange, Forged Steel Flanges to ANSI B16.5, Forged Hub Type Flange

Forged Welding Flange, Forged Steel Flange Weights, Dimensions of PN16 Flanges EN 1092-1, Forged Blind Flange, Forged Flange Diameter


Forged Flange ANSI B16.5

Forged Flange ANSI B16.5

Forged Flange ASME B16.5

Forged Flange ASME B16.5


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Ally International Co is one of the leading manufacturer and supplier of Forged Flanges in India. Our offered Forged Steel Flanges are fabricated using the premium quality raw material and sophisticated technology by our expert professionals. The offered range of Forged Pipe Flange is available in various specifications and designs.We have well reputed name as a Forged Flanges Manufacturers in India. Rugged in construction and corrosion resistant, the ANSI B16.5 Forged Flange is mostly used in forging, automobile, process and machine manufacturing industries. To fulfill varied client needs, the series can be offered in numerous thicknesses, check Forged steel Flanges Dimensions before order as per requirement.

Forged Flange Manufacturers in India
Supplier Of Forged Flange UK, Forged Flange Manufacturing Process, Forged Flanges Standard, Forged Flanges China, Forged Flanges Italy, Forged Flange Manufacturers in Rajkot
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ANSI/ASME B16.5 Forged Flange Specification

Dimensions  ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size  1/2″ (15 NB) to 48″ (1200NB)
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
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
Coating/Surface Treatment Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Value Added Services CNC Machining, Customised Flanges

 

ANSI B16.5 Forged Steel Flange Material Specification

Stainless Steel Forged Flanges : 
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 Pipe Flanges : 
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel Forged Flanges : 
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 Forged Flanges : ASTM A350, LF2, LF3

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

Copper Alloy Steel Forged Flanges : 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 Alloy Forged Pipe Flanges : 
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), 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), Alloy 20 (UNS No. N08020)

 

ANSI/ASME B16.5 FORGED FLANGES DIMENSIONS

FORGED STEEL FLANGE WEIGHTS

Forged Flanges Dimensions

Class 150 Forged Flange Dimesions

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
1¼ 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
1½ 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
2½ 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
3½ 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 Dimesions

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
1¼ 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
1½ 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
2½ 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
3½ 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

Dimensions are in inches.

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter. 
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses. 
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub. 

Class 400 Forged Flange Dimesions

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

 

  

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 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-.075 3.5 1.36 1.38 1.32 1.06 2.44 1.06 0.12 1.41 0.5 0.69
1¼ 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
1½ 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
2½ 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
3½ 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 1.38 6.19 5.75 8-1.00 7.88 4.57 4.6 4.5 2 3.5 2 0.44 4.63 …. 1.44
5 11 1.5 7.31 7 8-1.00 9.25 5.66 5.69 5.56 2.12 4 2.12 0.44 5.69 …. 1.69
6 12.5 1.62 8.5 8.12 12-1.00 10.62 6.72 6.75 6.63 2.25 4.06 2.25 0.5 6.75 …. 1.81
8 15 1.88 10.62 10.25 12-1.12 13 8.72 8.75 8.63 2.69 4.62 2.69 0.5 8.75 …. 2
10 17.5 2.12 12.75 12.62 16-1.25 15.25 10.88 10.92 10.75 2.88 4.88 4 0.5 10.88 …. 2.19
12 20.5 2.25 15 14.75 16-1.38 17.75 12.88 12.92 12.75 3.12 5.38 4.25 0.5 12.94 …. 2.38
14 23 2.38 16.25 16.75 20-1.38 20.25 14.14 14.18 14 3.31 5.88 4.62 0.5 14.19 …. 2.5
16 25.5 2.5 18.5 19 20-1.50 22.5 16.16 16.19 16 3.69 6 5 0.5 16.19 …. 2.69
18 28 2.62 21 21 24-1.50 24.75 18.18 18.2 18 3.88 6.5 5.38 0.5 18.19 …. 2.75
20 30.5 2.75 23 23.12 24-1.62 27 20.2 20.25 20 4 6.62 5.75 0.5 20.19 …. 2.88
22 33 2.88 25.25 25.25 24-1.75 29.25 22.22 22.25 22 4.25 6.75 6 0.5 …. …. —
24 36 3 27.25 27.62 24-1.88 32 24.25 24.25 24 4.5 6.88 6.25 0.5 24.19 …. 3.25

Dimensions are in inches.

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter. 
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses. 
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub.

Class 600 Forged Steel Flange Dimesions

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

   

 

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 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
1¼ 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
1½ 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
2½ 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
3½ 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

Dimensions are in inches.

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter. 
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses. 
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub. 

Class 900 Forged Flange Dimesions

Forged Flanges Class 900 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

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 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

Dimensions are in inches.

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter. 
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses. 
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub. 

Class 1500 Forged Flange Dimesions

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

 

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 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
1¼ 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
1½ 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
2½ 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 …. …. ….

Dimensions are in inches.

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter. 
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses. 
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub. 

Class 2500 Forged Flange Dimesions

Forged Flanges Class 2500 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 flanges, flange, industrial flanges, industrial flange, industrial pipe flanges, industrial fittings, industrial pipe, industrial carbon steel, industrial blind, industrial blinds, industrial, industrial waterworks, industrial stainless steel, industrial steel, industrial weld, industrial forgings, industrial orifice, industrial slip, industrial steel flange, industrial steel flanges, industrial titanium flange, industrial titanium flanges  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
1¼ 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
1½ 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
2½ 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 …. ….

Dimensions are in inches.

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter. 
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses. 
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub. 

 

Forged Flange Pressure Ratings

Flanges pressure rating in psig for Forged Flange ASME
Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 285 740 985 1480 2220 3705 6170
200 260 680 905 1360 2035 3395 5655
300 230 655 870 1310 1965 3270 5450
400 200 635 845 1265 1900 3170 5280
500 170 605 805 1205 1810 3015 5025
600 140 570 755 1135 1705 2840 4730
650 125 550 730 1100 1650 2745 4575
700 110 530 710 1060 1590 2655 4425
750 95 505 675 1015 1520 2535 4230
800 80 410 550 825 1235 2055 3430
850 65 320 425 640 955 1595 2655
900 50 230 305 460 690 1150 1915
950 35 135 185 275 410 685 1145
1000 20 85 115 170 255 430 715

 

Types of Forged Flanges

Forged Steel Flange Forged Pipe Flanges
ANSI B16.5 Forged Flanges Forged Flange Dimensions
ASME B16.5 Forged Flanges ANSI B16.5 Class 150 Forged Flanges
Hot Forged Flanges DIN Forged Flange
Forged Hub Type Flange Forged Welding Flange
ANSI B16.5 class 150 Forged Flange ANSI 150 Forged Flange
Carbon Steel Forged Flange High Quality Forged Flanges
Weld Neck Forged Flange Forged Blind Flange
Threaded Forged Flanges Socket Weld Forged Flanges

 

ASME B16.5 Forged Flange Price

Forged Flange Price: $15.45 / each
ANSI B16.5 Forged Pipe Flange Price: $20.14 / each
ASME B16.5 Forged Steel Flange Price: $18.35 / each

ASME/ANSI B16.5 Forged Pipe Flange Supplying to Following Regions & Countries:

AFRICA
Nigeria
Algeria
Angola
Tanzania
Libya
Egypt
Sudan
Equatorial Guinea
The Republic Of Congo
Gabon
NORTH AMERICA
Usa
Canada
Mexico
Costa Rica
Trinidad And Tobago
Jamaica
Denmark		 MIDDLE EAST ASIA
Saudi Arabia
Iran
Iraq
Uae
Qatar
Bahrain
Oman
Kuwait
Turkey
Jordan
SOUTH AMERICA
Argentina
Bolivia
Brazil
Chile
Venezuela
Colombia
Ecuador
Guyana
Paraguay
Uruguay		 EUROPE
Norway
Germany
France
Italy
Uk
Spain
Netherland
Belgium
Greece
Czech Republic
Portugal
Hungary
SOUTH AFRICA		 ASIA
India
Singapore
Malaysia
Indonesia
Thailand
Vietnam
South Korea
Japan
Sri Lanka
Maldives
Bangladesh
Mayanmar
Taiwan
Cambodia

Flanges