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Forged Flanges

Forged Flanges

【Technology brief】

ASME B16.5 Forged Flanges

【Materia】

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

【Size】

 1/2″ (15 NB) to 48″ (1200NB)

Description

HGFF Group Co., Ltd. (HGFF) is an ISO manufacturer, Forged Flanges besides being their exporter to the Middle Eastern and European countries. A Stainless Steel Forged Flange can be defined as a metal disc, installed at the back of a tube, valve or any other object. It allows simple Fitting and replacement of a piping system. They undergo the forging process whereby mechanical, energy is applied to a steel flange, to change its shape when in a solid state. ANSI B16.5 Forged Flanges possess a better impact strength than Cast flanges and are stronger and reliable. We are suppliers of Titanium, Alloy Steel, Carbon Steel, Monel, Nickel, CuproNickel, Stainless Steel and Inconel Forged Flanges to the chemical units, Oil and refineries, shipbuilding, petrochemicals and gas processing and distribution centers.

Product Structure

 

Standard Specication For Forged Flanges

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
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Material & Grades of Forged Flanges :

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 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 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)

ASME B16.5 Forged Flanges Available Types

Forged Flange  Forged Steel Flanges
ANSI B16.5 Forged Flanges  Forged Flange Dimensions
ASME B16.5 Forged Flanges  ANSI B16.5 Class 150 Forged Flanges
Stainless Steel Forged Flanges  Suppliers SS Forged Flange
Forged Plate Flanges Dealer  ASME B16.47 Series A and B Forged Flanges Exporter
ANSI B16.5 class 150 Forged Flange Stockholder  ANSI 150 Forged Flange Distributors
Carbon Steel Forged Flange  High Quality Forged Flanges Manufacturer
ASTM A182 Stainless Steel Forged Flange  Duplex Steel Forged Flange
Super Duplex Steel Forged Forged Flange  Copper Nickel Forged Pipe Flanges
High Nickel Alloy Forged Flanges  Hastelloy Flat Faced Forged Flanges Stockist
Titanium ASME B16.47 Series A and B Forged Flanges  Inconel Forged Flanges

Technical Parameters

ANSI/ASME B16.5 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 3.5 0.38 0.44 1.38 1.19 4-0.62 2.38 0.88 0.62 0.9 0.84 0.56 1.81 0.62 0.12 0.38 0.62
¾ 3.88 0.44 0.5 1.69 1.5 4-0.62 2.75 1.09 0.82 1.11 1.05 0.56 2 0.62 0.12 0.44 0.62
1 4.25 0.5 0.56 2 1.94 4-0.62 3.12 1.36 1.05 1.38 1.32 0.62 2.12 0.69 0.12 0.5 0.69
4.62 0.56 0.62 2.5 2.31 4-0.62 3.5 1.7 1.38 1.72 1.66 0.75 2.19 0.81 0.19 0.56 0.81
5 0.62 0.69 2.88 2.56 4-0.62 3.88 1.95 1.61 1.97 1.9 0.81 2.38 0.88 0.25 0.62 0.88
2 6 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 0.31 0.69 1
7 0.81 0.88 4.12 3.56 4-0.75 5.5 2.94 2.47 2.97 2.88 1.06 2.69 1.12 0.31 0.75 1.12
3 7.5 0.88 0.94 5 4.25 4-0.75 6 3.57 3.07 3.6 3.5 1.12 2.69 1.19 0.38 0.81 1.19
8.5 0.88 0.94 5.5 4.81 8-0.75 7 4.07 3.55 4.1 4 1.19 2.75 1.25 0.38 0.88 1.25
4 9 0.88 0.94 6.19 5.31 8-0.75 7.5 4.57 4.03 4.6 4.5 1.25 2.94 1.31 0.44 0.94 1.31
5 10 0.88 0.94 7.31 6.44 8-0.88 8.5 5.66 5.05 5.69 5.56 1.38 3.44 1.44 0.44 0.94 1.44
6 11 0.94 1 8.5 7.56 8-0.88 9.5 6.72 6.07 6.75 6.63 1.5 3.44 1.56 0.5 1.06 1.56
8 13.5 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 0.5 1.25 1.75
10 16 1.12 1.19 12.75 12 12-1.00 14.25 10.88 10.02 10.92 10.75 1.88 3.94 1.94 0.5 1.31 1.94
12 19 1.19 1.25 15 14.38 12-1.00 17 12.88 12 12.92 12.75 2.12 4.44 2.19 0.5 1.56 2.19
14 21 1.31 1.38 16.25 15.75 12-1.12 18.75 14.14 13.25 14.18 14 2.19 4.94 3.12 0.5 1.63 2.25
16 23.5 1.38 1.44 18.5 18 16-1.12 21.25 16.16 15.25 16.19 16 2.44 4.94 3.44 0.5 1.75 2.5
18 25 1.5 1.56 21 19.88 16-1.25 22.75 18.18 17.25 18.2 18 2.62 5.44 3.81 0.5 1.94 2.69
20 27.5 1.62 1.69 23 22 20-1.25 25 20.2 19.25 20.25 20 2.81 5.62 4.06 0.5 2.13 2.88
22 29.5 1.75 1.81 25.25 24.25 20-1.38 27.25 22.22 21.25 22.25 22 3.07 5.82 4.25 0.5 2.38 3.13
24 32 1.81 1.88 27.25 26.12 20-1.38 29.5 24.25 23.25 24.25 24 3.19 5.94 4.38 0.5 2.5 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 0.5 0.56 1.38 1.5 4-0.63 2.62 0.88 0.62 0.9 0.84 0.81 2 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 0.12 1.14 0.44 0.62
1 4.88 0.62 0.69 2 2.12 4-0.75 3.5 1.36 1.05 1.38 1.32 1 2.38 1.06 0.12 1.41 0.5 0.69
5.25 0.69 0.75 2.5 2.5 4-0.75 3.88 1.7 1.38 1.72 1.66 1 2.5 1.06 0.19 1.75 0.56 0.81
6.12 0.75 0.81 2.88 2.75 4-0.88 4.5 1.95 1.61 1.97 1.9 1.13 2.63 1.19 0.25 1.98 0.62 0.88
2 6.5 0.81 0.88 3.62 3.31 8-0.75 5 2.44 2.07 2.46 2.38 1.25 2.69 1.31 0.31 2.5 0.69 1.12
7.5 0.94 1 4.12 3.94 8-0.88 5.88 2.94 2.47 2.97 2.88 1.44 2.94 1.5 0.31 3 0.75 1.25
3 8.25 1.06 1.12 5 4.62 8-0.88 6.62 3.57 3.07 3.6 3.5 1.63 3.06 1.69 0.38 3.63 0.81 1.25
9 1.12 1.19 5.5 5.25 8-0.88 7.25 4.07 3.55 4.1 4 1.69 3.13 1.75 0.38 4.13 …. 1.44
4 10 1.19 1.25 6.19 5.75 8-0.88 7.88 4.57 4.03 4.6 4.5 1.82 3.32 1.88 0.44 4.63 …. 1.44
5 11 1.31 1.38 7.31 7 8-0.88 9.25 5.66 5.05 5.69 5.56 1.94 3.82 2 0.44 5.69 …. 1.69
6 12.5 1.38 1.44 8.5 8.12 12-0.88 10.62 6.72 6.07 6.75 6.63 2 3.82 2.06 0.5 6.75 …. 1.81
8 15 1.56 1.62 10.62 10.25 12-1.00 13 8.72 7.98 8.75 8.63 2.38 4.32 2.44 0.5 8.75 …. 2
10 17.5 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 0.5 10.88 …. 2.19
12 20.5 1.94 2 15 14.75 16-1.25 17.75 12.88 12 12.92 12.75 2.82 5.06 4 0.5 12.94 …. 2.38
14 23 2.06 2.12 16.25 16.75 20-1.25 20.25 14.14 13.25 14.18 14 2.94 5.56 4.38 0.5 14.19 …. 2.5
16 25.5 2.19 2.25 18.5 19 20-1.38 22.5 16.16 15.25 16.19 16 3.19 5.69 4.75 0.5 16.19 …. 2.69
18 28 2.31 2.38 21 21 24-1.38 24.75 18.18 17.25 18.2 18 3.44 6.19 5.12 0.5 18.19 …. 2.75
20 30.5 2.44 2.5 23 23.12 24-1.38 27 20.2 19.25 20.25 20 3.69 6.32 5.5 0.5 20.19 …. 2.88
22 33 2.57 2.63 25.25 25.25 24-1.63 29.25 22.22 21.25 22.25 22 3.93 6.43 5.75 0.5 22.19 …. 3.13
24 36 2.69 2.75 27.25 27.62 24-1.63 32 24.25 23.25 24.25 24 4.13 6.56 6 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 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 To Be Specified By Purchaser 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
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 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 Dimensions

Nom. Pipe Size

O T R X #/Dia of Holes 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 To Be Specified By Purchaser    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

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

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 To Be Specified By Purchaser 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 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 To Be Specified By Purchaser 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 …. …. ….

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

 

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 To Be Specified By Purchaser 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 …. ….

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. 

 

Application

 

ANSI B16.5 Forged Flanges Application

ASME B16.5 Forged Flanges are known to deliver exceptional performance and are generally developed for
meeting the demands. We oer a broad range of Forged Flanges through a worldwide network of stock-keeping
branches. These Forged Flange is use in various industries like :
 Stainless Steel Forged Flanges uses in Oil and Gas Pipeline
 Forged Flanges uses in Chemical Industry
 Alloy Steel Forged Flanges uses in Plumbing
 Flat Faced Forged Flanges uses in Heating
 Forged Pipe Flanges uses in Water Supply Systems
 ANSI B16.5 Forged Forged Flanges uses in Power Plant
 Forged Plate Flanges uses in Paper & Pulp Industry
 Forged Flange uses in General Purpose Applications
 Steel Forged Flanges uses in Fabrication Industry
 Forged Flange uses in Food Processing Industry
 Forged Flanges uses in Structural Pipe

Export Country

 

Export Destinations For Forged Flanges

 

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

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