astm a182 f5 flanges manufacturer

Alloy Steel Flanges Manufacturer In India

Refer Standard Dimensions Of AS Flanges And Buy Alloy Steel Lap Joint Flange At Low Price.

A flange can be described as a method for connecting different components that form a piping system. It is also used for strengthening or spreading the load in a piping system. Flanges help in easy maintenance of cleaning of the piping system. We are one of the top Alloy Steel Flanges Manufacturer In India whose products are used across various industries. We produce ASME B16.5 AS Flanges that offer several interesting features, making them quite popular in various industries. Some of the properties of AS 2129 Flanges made by us are:

  1. It has an effective abrasive coating

  2. These flanges are tamper-proof and protected

  3. They are made using adequate high-quality materials

  4. They perform efficiently in a given application

  5. These are tested for different components and get supplied to our customers only when they pass the test.

We have a vast inventory of different flanges like Alloy Steel Lap Joint Flange, slip-on flange, blind flange, etc. We make sure that each of our products, including the Alloy Steel Slip On Flange, has a long life, better finishes and they maintain dimensional accuracy. In addition, we create an Alloy Steel Weld Neck Flange that is customizable in terms of shape and size. Clients can contact us directly for any requirements of Low Alloy Steel Blind Flanges or any other pipe fittings.


Alloy Steel Flanges

Alloy Steel Flanges

Alloy Steel Lap Joint Flange

Alloy Steel Lap Joint Flange

Alloy Steel Slip On Flanges

Alloy Steel Slip On Flanges

Chrome Moly Flanges

Chrome Moly Flanges

Alloy Steel Weld Neck Flange

Alloy Steel Weld Neck Flange

Alloy Steel Blind Flange

Alloy Steel Blind Flange


Table of Content


alloy steel thread flange

Check Update Price Before You Buy Low Alloy Steel Slip On Flanges In India And Check Chrome Moly Flange Material Specification.


Specification List Of ASME B16.5 AS Flanges

Specification Table Of : Alloy Steel Flanges
ADNOC Approved Manufacturer Of Standards ASME B16.36, DIN, AWWA C207, B16.47 Series A & B, BS1560-3.1, EN-1092, ASME B16.48, API605, BS4504, EN1092, UNI, ISO, MSS S44, IS 2062, ISO70051, API, API7S-43, ANSI/ASME B16.5, API7S-15
Temperature Ratings 150 LB To 2500 LB
Face Type Details Raised Face, Large Tongue & Large Male-Female And Small Male-Female, Groove And Small Tongue Groove, RTJ, Flat Face, Lap-Joint Face.
Forging Materials Stainless Steel, Alloy Steel, Carbon Steel, Duplex Steel & Super Duplex Steel, Cast Iron, Inconel, Mild Steel, Hastelloy, Copper Nickel, Wrought Iron.
Thickness NPS ≤ 18
Flanges High Temperature Above 200° Celsius (400°F) For 150 Class Or Above 400° Celsius (750°F)
JIS Standards 5K, 10K, 40K, 16K 20K 30K, 63K
Our Top Selling Products Lap Joint, Socket-Weld, Blind, Threaded, Weld Neck, Slip-On
Buy Flanges For Pipe Connection Power Plants Industry
Food Processing And Manufacturing
Waterworks Systems
Nuclear Power Application
Municipal Pipe Systems
Fossil Fuel Power Plants
Oil And Gas Industry
Held Wide Stock In Below City Visakhapatnam, Hazira, Jubail, Surabaya, Gurgaon, Mumbai, Lucknow, Mumbai, Dhaka, Mysuru, Kochi, Chandigarh, Ambernath, Bahru, Indore, Nagpur, Melbourne, Cairo, Ho Pimpri-Chinchwad, Ahmedabad, Vadodara, Ajman, Vung Ludhiana, Shanghai, City, Chicago, City, Busan, Thane, Bangkok, Al Alexandria, Dhabi, Bogota, Sydney, Guwahati, Noida, Lumpur, Santiago, Raipur, Istanbul, Seoul, Dubai, Zhengzhou, Panipat, Abu Milan, Delhi, Sharjah, Puchong, Virar, Rajkot, Houston, Doha, Khobar, Tehran, Kalyan, Vasai Vapi, Paris, Delhi, Singapore, Johor Karachi, City, Alam, Bengaluru, Jakarta, Jeddah, Hyderabad, Kolkata, Al Ghaziabad, Baku, Dombivli, Paulo, Tiruchirappalli, Jamnagar, Secunderabad, Lagos, Ashburn, Riyadh, Dallas, London, Chennai, Chi Manama, Bhubaneswar, Quezon Mexico Perth, Sao Calgary, Ankleshwar, Patna, Agra, Hanoi, Minh Tau, Coimbatore, Faridabad, Madrid, Pune, Hangzhou, Kuala Bhopal, Shah Batam, Jamshedpur, Beijing, New Dammam, Surat, Navi Jaipur, Kota, Amsterdam, Nashik, Brisbane, Oyama.
Type Of Making Format Plate /Forged/ Threaded
Bore Diameter NPS ≤ 10
Size Chart (1/2") To (48")
Manufacturing Process
  • Heat Treated/ Machined / Forged

Alloy Steel Flanges Price List In India

Description Price In INR (Per Piece)
Alloy Steel Socket Weld Flange
3/4" X 150# X SCH XS 100.00
1” X 150# X SCH XS 140.00
1-1/2” X 150# X SCH XS 200.00
2 X 150# X SCH XS 250.00
1 X 300# X SCH XS 260.00
1-1/2 X 300 X SCH XS 300.00
Alloy Steel Blind Flange
3/4 X 150# 100.00
1 X 150# 120.00
1-1/2 X 150# 200.00
2 X 150# 240.00
3 X 150# 350.00
4 X 150# 700.00
6 X 150# 1100.00
8 X 150# 1700.00
10 X 150# 2500.00
12 X 150# 3000.00
Alloy Steel Slip On Flange
2 X 150# 210.00
3 X 150# 350.00
4 X 150# 550.00
6 X 150# 700.00
8 X 150# 1500.00
10 X 150# 2100.00
Alloy Steel Weld Neck Flange
2 X 150# X SCH STD 400.00
3 X 150# X SCH STD 600.00
4 X 150# X SCH STD 700.00
6 X 150# X SCH STD 1400.00
8 X 150# X SCH STD 2300.00
10 X 150# X SCH STD 3700.00
12 X 150# X SCH STD 4300.00

Rajendra Piping & Fittings AS Flanges Manufacturer in India. For final Alloy Steel Flanges Price List Please Call on +91(22) – 6743 8321 or drop an Email to info@rpfindia.com.


Alloy Steel Lap Joint Flange Dimensions Chart

Alloy Steel Lap Joint Flange Dimensions Chart


Normal Pipe Size (NPS) Outside Daimeter (O.D.) Of Flange Thickness Of Flanges Diameter of Raised Face Hub at Base Diameter Lengtd Tdru Hub Bore And Diameter Hub at Bevel Diameter Radius of Fillet Socket Deptd
Weld Neck (WN) SORF (Slip-On) NPT (Threaded) SWRF (Socket) Loose (Lap Joint) SORF (Slip-on) SWRF (Socket) Loose (Lap Joint)
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2

Low Alloy Steel Slip On Flanges Schedule Chart

NPS (Nominal Pipe Size) SORF (Slip On) NPT (Threaded) SWRF (Socket Weld) Loose (Lap Joint) BLRF (Blind) WRNR (Weld Neck)
½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
1¼ 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

Chrome Moly Flange Pressure Rating Chart

ASTM A182 Alloy Steel Flanges Pressure And Temperature Ratings
Temperature °F Class 150 As Per ASME B16.5 Class 300 As Per ASME B16.5 Class 400 As Per ASME B16.5 Class 600 As Per ASME B16.5 Class 900 As Per ASME B16.5 Class 1500 As Per ASME B16.5 Class 2500 As Per ASME B16.5
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

AISI 4130 Flanges Size Chart

Normal Sizes In inchDimensionASME B16.5 Alloy Steel Flanges Dimensional Sizes 1/2 inch. to 2 1/2 inch.
Class 125
Class 150 		Class 300Class 400Class 600Class 900Class 1500Class 2500
inch.mminch.millimeterinch.mminch.mminch.mminch.mminchmm
1/2A3 1/288.93 3/495.23 3/495.23 3/495.24 3/41214 3/41215 1/4133.4
b7/1611.19/1614.39/1614.39/1614.37/822.27/822.21 3/1630.2
D21 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.9
D12 3/860.32 5/866.72 5/866.72 5/866.73 1/482.63 1/482.63 1/288.9
n44444444444-444
d5/815.95/815.95/815.95/815.97/822.27/822.27/822.2
3/4A3 7/898.44 5/8117.54 5/8117.54 5/8117.55 1/81305 1/81305 1/2139.7
b1/212.75/815.95/815.95/815.9125.4125.41 1/431.8
D21 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.9
D12 3/469.83 1/482.53 1/482.53 1/482.53 1/288.93 1/288.93 3/495.2
n44444444444-444
d5/815.93/4193/4193/4197/822.27/822.27/822.2
1A4 1/41084 7/8123.84 7/8123.84 7/8123.85 7/8149.25 7/8149.26 1/4159
b9/1614.311/1617.511/1617.511/1617.51 1/828.61 1/828.61 3/834.9
D2250.8250.8250.8250.8250.8250.8250.8
D13 1/879.43 1/288.93 1/288.93 1/288.9410241024 1/4108
n44444444444444
d5/815.93/4193/4193/419125.4125.4125.4
1 1/4A4 5/8117.55 1/4133.45 1/4133.45 1/4133.46 1/41596 1/41597 1/4184.2
b5/815.93/41913/1620.613/1620.61 1/828.61 1/828.61 1/238.1
D22 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.5
D13 1/288.93 7/898.43 7/898.43 7/898.44 3/81114 3/81115 1/8130
n44444444444444
d5/815.93/4193/4193/419125.4125.41 1/828.6
1 1/2A51276 1/8155.66 1/8155.66 1/8155.67177.87177.88203
b11/1617.513/1620.67/822.27/822.21 1/431.81 1/431.81 3/444.5
D22 7/873 982 7/8732 7/8732 7/8732 7/8732 7/8732 7/873
D13 7/844 1/21144 1/21144 1/21144 7/81244 7/81245 3/4146
n44444444444444
d5/8. 15.97/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8
2A6152.46 1/2165.16 1/2165.16 1/2165.18 1/2215.98 1/2215.99 1/4234.9
b3/4197/822.2125.4125.41 1/238.11 1/238.1250.8
D23 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.1
D14 3/41215127512751276 1/2165.16 1/2165.16 3/4171
n44888888888888
d3/4193/4193/4193/419125.4125.41 1/828.6
2 1/2A7177.87 1/2190.57 1/2190.57 1/2190.59 5/82449 5/824410 1/2266.7
b7/822.2125.41 1/828.61 1/828.61 5/841.31 5/841.32 1/457.2
D24 1/8104.84 1/8104.84 1/8104.84 1/8104.84 1/81054 1/81054 1/8105
D15 1/2139.75 7/8149.25 7/8149.25 7/8149.27 1/2190.57 1/2190.57 3/4197
n44888888888888
d3/4197/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8

Alloy Steel Weld Neck Flange Thickness

Wall Thickness Of ANSI B16.5 Flanges
Normal Pipe Size (NPS) O.D. (Outside Daimeter) Sch 10 Sch 20 Sch 30 STD Wall Outside Daimeter Sch 40 Sch 60 EXT Hvy Outside Daimeter Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 XX Hvy
½ 0.84 0.083 ... ... 0.109 0.109 ... 0.147 0.147 ... ... ... 0.188 0.294
¾ 1.05 0.083 ... ... 0.113 0.113 ... 0.154 0.154 ... ... ... 0.219 0.308
1 1.315 0.109 ... ... 0.133 0.133 ... 0.179 0.179 ... ... ... 0.25 0.358
1 ¼ 1.66 0.109 ... ... 0.14 0.14 ... 0.191 0.191 ... ... ... 0.25 0.382
1 ½ 1.9 0.109 ... ... 0.145 0.145 ... 0.2 0.2 ... ... ... 0.281 0.4
2 2.375 0.109 ... ... 0.154 0.154 ... 0.218 0.218 ... ... ... 0.344 0.436
2 ½ 2.875 0.12 ... ... 0.203 0.203 ... 0.276 0.276 ... ... ... 0.375 0.552
3 3.5 0.12 ... ... 0.216 0.216 ... 0.3 0.3 ... ... ... 0.438 0.6
3 ½ 4 0.12 ... ... 0.226 0.226 ... 0.318 0.318 ... ... ... ... 0.636
4 4.5 0.12 ... ... 0.237 0.237 ... 0.337 0.337 ... 0.438 ... 0.531 0.674
5 5.563 0.134 ... ... 0.258 0.258 ... 0.375 0.375 ... 0.5 ... 0.625 0.75
6 6.625 0.134 ... ... 0.28 0.28 ... 0.432 0.432 ... 0.562 ... 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ...
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ...
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ...
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ...
22 22 0.25 ... ... 0.375 ... ... 0.5 ... ... .... .... .... ....
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ....
26 26 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
30 30 0.312 0.5 0.625 0.375 .... .... 0.5 .... .... .... .... .... ....
36 36 0.312 0.5 0.625 0.375 0.75 .... 0.5 .... .... .... .... .... ....
40 40 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
42 42 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
48 48 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..

High AS 2129 Flanges Tolerance Formula

ASME B16.5Tolerance Table
A O.D. (Outside Diameter)
  • When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter)
  • When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
D Inside Diameter (I.D.)
  • 10" and smaller: ±1/32" (0.8 mm)
  • 12" thru 18": +1/8" (3.2 mm)
  • 20" and larger: -1/16" (1.6 mm)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 mm)
  • 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm)
  • 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
P Drilling
  • Circle Bolts: ±1/16" (1.6 mm)
  • Bolts hole spacing: ±1/32" (0.8 mm)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 mm) maximum
  • 3" and larger ±1/16" (1.6 mm) maximum
C Thickness
  • 18" and smaller: ±1/8" (3.2 mm), -0"
  • 20" and larger: ±3/16" (4.8 mm), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 mm)
  • 12" and larger: ±1/8" (3.2 mm)

Bolt & Stud Chart Of Alloy Steel Weld Neck Flange And We Manufacturer & Supply High AS 2129 Flanges With Instant Delivery.


Alloy Steel Blind Flange Bolt Chart

150# Flange As Per ANSI B16.5 300# Flange As Per ANSI B16.5 600# Flange As Per ANSI B16.5
Normal Pipe Size # Studs And Bolts Diameter of Studs And Bolts Length Of Studs # Studs And Bolts Diameter of Studs And Bolts Stud Length # Studs And Bolts Diameter of Studs And Bolts Length Of Studs
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
1/2 4 0.50 2-1/4 – 4 0.50 2-1/2 3 4 0.50 3 3
3/4 4 0.50 2-1/2 – 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4

 

900# Flange As Per ANSI B16.5 1500# Flange As Per ANSI B16.5 2500# Flange As Per ANSI B16.5
Normal Pipe Size # Studs And Bolts Diameter of Bolts And Studs Stud Length # Studs And Bolts Diameter of Studs And Bolts Length Of Studs # Studs And Bolts Diameter of Studs And Bolts Length Of Studs
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
1/2 4 0.75 4-1/4 4-1/4 4 0.75 4-1/4 4-1/4 4 0.75 4-3/4 4-3/4
3/4 4 0.75 4-1/2 4-1/2 4 0.75 4-1/2 4-1/2 4 0.75 5 5
1 4 0.88 5 5 4 0.88 5 5 4 0.88 5-1/2 5-1/2
1-1/4 4 0.88 5 5 4 0.88 5 5 4 1.00 6 6
1-1/2 4 1.00 5-1/2 5-1/2 4 1.00 5-1/2 5-1/2 4 1.13 6-3/4 6-3/4
2 8 0.88 5-3/4 5-3/4 8 0.88 5-3/4 5-3/4 8 1.00 7 7
2-1/2 8 1.00 6-1/4 6-1/4 8 1.00 6-1/4 6-1/4 8 1.13 7-3/4 8
3 8 0.88 5-3/4 5-3/4 8 1.13 7 7 8 1.25 8-3/4 9
4 8 1.13 6-3/4 6-3/4 8 1.25 7-3/4 7-3/4 8 1.50 10 10-1/4
5 8 1.25 7-1/2 7-1/2 8 1.50 9-3/4 9-3/4 8 1.75 11-3/4 12-1/4
6 12 1.13 7-1/2 7-3/4 12 1.38 10-1/4 10-1/2 8 2.00 13-1/2 14
8 12 1.38 8-3/4 8-3/4 12 1.63 11-1/2 11-3/4 12 2.00 15 15-1/2
10 16 1.38 9-1/4 9-1/4 12 1.88 13-1/4 13-1/2 12 2.50 19-1/4 20
12 20 1.38 10 10 16 2.00 14-3/4 15-1/4 12 2.75 21-1/4 22
14 20 1.50 10-3/4 11 16 2.25 16 16-3/4 – – – –
16 20 1.63 11-1/4 11-1/2 16 2.50 17-1/2 18-1/2 – – – –
18 20 1.88 12-3/4 13-1/4 16 2.75 19-1/2 20-3/4 – – – –
20 20 2.00 13-3/4 14-1/4 16 3.00 21-1/4 22-1/4 – – – –
24 20 2.50 17-1/4 18 16 3.50 24-1/4 25-1/2 – – – –

Gasket Size Chart Of Alloy Steel Blind Flange And AS 4087 Flanges Supplier & Manufacturer In Mumbai, India.

AS 4087 Flanges Gasket Size Chart

Normal Pipe Size Gasket I.D. (Inside Daimeter)
 Gasket O.D. (Outside Daimeter)
150 LB 300 LB 400 LB 600 LB 900 LB
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

Check Alloy Steel Thread Flange Thickness Calculation For Pressure Vessel And Pressure Rating Formula Of ASTM A182 Low Alloy Steel Pipe Flanges.

Alloy Steel Thread Flange Equivalent Chart

Group Of Alloy Steel Material Name Of Flanges Type Of Flanges UNS Number Specification Of Forging Specification Of Casting Equivalent DIN Number DIN WNR. Number Application For
Alloy Steel Flanges Moly Steel C-1/2Mo K12822 A182-F1 cl2 A217-WC1 15M03 1.5415 Up to 470ºC* (875ºF)
Chrome Moly 1.1/4Cr-1/2Mo K11572 ASTM A182 F11 Class 2 Flanges A217-WC6 13CRM044 1.7335 Up to 593ºC (1100ºF)
2.1/4Cr-1Mo K21590 ASTM A182 F22 Class 3 Flanges A217-WC9 10CRM0910 1.7380 Up to 593ºC (1100ºF), HP steam
5Cr-1/2Mo K41545 ASTM A182 F5 Flanges A217-C5 12CRMO195 1.7362 High temp refinery service
9Cr-1Mo K90941 ASTM A182 F9 Flanges A217-C12 X 12 CrMo 9 1 1.7386 High temp erosive refinery service
9Cr-1Mo-V ASTM A182 F91 Flanges A217-C12A X 10 CrMoVNb 9 1 1.4903 High pressure steam

ASTM A182 Alloy Steel Pipe Flanges Chemical Chart

Properties Of Alloy Steel Element Low AS Flanges Medium AS Flanges
ASTM A182 F11 Class 2 Flanges ASTM A182 F22 Class 3 Flanges ASTM A182 F5 Flanges ASTM A182 F9 Flanges
CARBON 0.10-0.20 0.05-0.15 0.15 MAX. (MAXIMUM) 0.15 MAX. (MAXIMUM)
MANGANESE 0.30-0.80 0.30-0.60 0.30-0.60 0.30-0.60
PHOSPHORUS MAX. (MAXIMUM) 0.040 0.040 0.03 0.030
SULFUR MAX. (MAXIMUM) 0.040 0.040 0.03 0.030
SILICON 0.50-1.00 0.50 MAX. (MAXIMUM) 0.50 MAX. (MAXIMUM) 0.50-1.00
NICKEL MAX. (MAXIMUM) – – 0.50 –
CHROMIUM 1.00-1.50 2.00-2.50 4.00-6.00 8.0-10.0
MOLYBDENUM 0.44-0.65 0.87-1.13 0.44-0.65 0.90-1.10
OPPER MA – – – –
COLUMBIUM MAX. (MAXIMUM) – – – –
VANDIUM MAX. (MAXIMUM) – – – –
TENSILE STRENGTH PSI (MPA) 70,000 (485) 75,000 (515) 70,000 (485) 85,000 (585)
YIELD STRENGTH PSI MIN. (MINIMUM) 40,000 (275) 45,000 (310) 40,000 (275) 55,000 (380)
ELONGATION 2” % MIN. (MINIMUM) 20 20 20 20
REDUCTION AREA % MIN. (MINIMUM) 30 30 35 40
HARDNESS (HB) MAXIMUM* 143 ~ 207 156 ~ 207 143 ~ 217 179 ~ 217

Alloy Steel Flanges Mechanical Properties

Grade Of Alloy Steel Tensile Strength Yield Strength (0.2%Offset) Elongation
ASTM/ASME A182 F1 275 485 20 %
ASTM A182 F5 Flanges 275 485 20 %
ASTM A182 F9 Flanges 380 585 20 %
ASTM A182 F11 Flanges 205 415 20 %
ASTM A182 F12 Flanges 275 485 20 %
ASTM A182 F22 Flanges 205 415 20 %
ASTM A182 F91 Flanges 380 585 20 %


Available Grade Of Alloy Steel Pipe Flanges

ASTM A182 F5 Flanges
ASTM A182 F5 Flanges
ASTM A182 F9 Flanges
ASTM A182 F9 Flanges
ASTM A182 F11 Flanges
ASTM A182 F11 Flanges
ASTM A182 F22 Flanges
ASTM A182 F22 Flanges
ASTM A182 F91 Flanges
ASTM A182 F91 Flanges

Most Reliable Manufacturer Types Of Alloy Steel Flanges In India

Alloy Steel Blind Flanges
Alloy Steel Blind Flanges
Alloy Steel Weld Neck Flanges
Alloy Steel Weld Neck Flanges
Alloy Steel Slip On Flanges
Alloy Steel Slip On Flanges
Alloy Steel Socket Weld Flanges
Alloy Steel Socket Weld Flanges
Alloy Steel Tongue & Groove Flanges
Alloy Steel Tongue & Groove Flanges
Alloy Steel Reducing Flanges
Alloy Steel Reducing Flanges
Alloy Steel Plate Flanges
Alloy Steel Plate Flanges
Alloy Steel Ring Type Joint Flanges
Alloy Steel Ring Type Joint Flanges
Alloy Steel Spectacle Blind Flanges
Alloy Steel Spectacle Blind Flanges
Alloy Steel Threaded Flanges
Alloy Steel Threaded Flanges
Alloy Steel Lap Joint Flanges
Alloy Steel Lap Joint Flanges
Alloy Steel Long Weld Neck Flanges
Alloy Steel Long Weld Neck Flanges
Alloy Steel Bleed Ring
Alloy Steel Bleed Ring
Alloy Steel Forged Flanges
Alloy Steel Forged Flanges
Alloy Steel Raised Face Flanges
Alloy Steel Raised Face Flanges


We Supplied A Comprehensive Range Of Alloy Steel Flanges To The Following Locations:

Class 150, 4 Inch, SCH 10, ANSI B16.5, Alloy Steel Lap Joint Flange Singapore, South Africa, Bahrain
8 Inch, Class 300, Alloy Steel Slip On Flanges UK, Australia, Philippines, Nigeria
150 LB, 10 Inch, SCH 20, RF, Chrome Moly Flanges UAE, Hong Kong, Oman, Malaysia
300LB, SCH 20, 4 Inch, Raised Face, Alloy Steel Weld Neck Flange Bangladesh, Malaysia, Finland, USA
SCH 30, FF, Class 150 LB, 6 Inch, Alloy Steel Blind Flange Kuwait, South Africa, Saudi Arabia (KSA), Brazil
8 Inch, RF Ends, SCH 20, 300#, Alloy Steel Orifice Flanges Russia, Malaysia, Netherlands, Dubai
SCH 120, RF, 12 Inch, Class 2500, Alloy Steel Puddle Flange UK, Mexico, Egypt, Spain
2500 LB, ASA B16.5, RF, 6 Inch, Alloy Steel Forged Flanges Ellington -United States, Poland, UK, Canada
16 Inch, RF, ASME B16.47, Alloy Steel Raised Face Flanges Malaysia, Philippines, Canada, Singapore
PN16, DN80, EN1092-2, RF, Alloy Steel Socket Weld Flanges Iran, Chile, Singapore, Italy
Class 600, RF, STD, DN 200, Forged, Alloy Steel Reducing Flanges Norway, Turkey, United Arab Emirates (UAE), Malaysia
AMSE B16.5, SCH 30S, 2 Inch, Alloy Steel Plate Flanges Malaysia, Europe, United Kingdom -UK, UAE
ASME B16.5, 900LB, Alloy Steel Ring Type Joint Flanges Belgium, Philippines, Dammam -KSA, Indonesia.
BS 10 Class D, 16 Inch, STD Bore, Alloy Steel Threaded Flanges Thailand, Europe, Qatar, France.
Class 1500, ANSI B16.5, 2 Inch, RF, Alloy Steel Spectacle Blind Flanges Thailand, Germany, Malaysia, Czechia
EN 10204, 6 Inch, RF, SCH 12, alloy steel thread flange Canada, Malaysia, Philippines, Singapore
Class 300, ASME B16.5, 8 Inch, RF, ASTM A182 Low Alloy Steel flanges Europe, Japan, Romania, Malaysia
BS 10 Table E, Sch 20, Class 1500, 10 Inch, Alloy Steel Forged Flanges Colombia, Sweden, China, Malaysia
Class 2500, 14 Inch, SCH 120, Alloy Steel A182 Flanges United Kingdom -UK, Europe, UAE, Malaysia