Global Stainless Steel India
ASME B16.5 Mild Steel Flanges
ASME B16.5 Mild Steel Flanges
 Mild Steel Slip On Flanges
Mild Steel Slip On Flanges
ANSI B16.5 MS Pipe Flanges
ANSI B16.5 MS Pipe Flanges


Mild Steel Blank Flanges Dimension


Mild Steel Blank Flanges Dimension

Mild Steel Slip On Flanges Specification


Specification : Mild Steel Flanges
Common Types of Flange : Flanges 150 LB WNRF
Class 300 RTJ
600# BLRF
Class 900 SORF
Supporting Flange Material: Gasket, Flange Bolts, Ring Joint
Application: Nuclear Power Plant
Natural Gas Industry
Oil And Gas Industry
Water Pipeline Industry
Chemical Industry
Fabrication Industry
Design For Size: DIN, JIS, ANSI, EN, ASA, ASME, BS, PN
Flange Machining Equipment: Sand-blasting machine, Press machine, Bending machine, Pushing Machine, electric bevelling machine etc
Connect Type: LMF, SMF, LJF, RF, FF, RTJ
Size Chart : 1/2″ (15 NB) To 48″ (1200NB)
Production Process: Heat Treated, Machined, Forged
Coating Flange Faces : Anti-rust Paint, Cold and Hot Dip Galvanized, Zinc Plated, Yellow Transparent, Oil Black Paint
Standards: ASME B16.38 Flanges, EN-1092 Flanges, BS10 Flanges, DIN Flanges, PN Flanges, JIS Flanges, ISO Flanges, GOST Flanges, UNI Flanges, AWWA Flanges, MSS SP44 Flanges, ASME B16.5 Flanges, ASME B16.47 (Series A, Series B) Flanges
Pressure Rating Table: Class 150 LBS, Class 300 LBS, Class 600 LBS, Class 900 LBS, Class 1500 LBS, Class 2500 LBS

MS Flange Class 150 Pressure Rating


ASME Mild Steel Flanges Pressure Rating
Temperature °F Mild Steel 150 LB Mild Steel 300 LB Mild Steel 400 LB Mild Steel 600 LB Mild Steel 900 LB Mild Steel 1500 LB Mild Steel 2500 LB
-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

Industrial Mild Steel Flanges Weight Chart


Size in In. Size in millimeter Outer Diameter Flange Thick. RF Diameter RF Height PCD No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kilogram
A B C D E
1/2 15 90 9.6 34.9 2 60.3 4 1/2 50 55 5/8 M14 0.9
3/4 20 100 11.2 42.9 2 69.9 4 1/2 50 65 5/8 M14 0.9
1 25 110 12.7 50.8 2 79.4 4 1/2 55 65 5/8 M14 0.9
1 1/4 32 115 14.3 63.5 2 88.9 4 1/2 55 70 5/8 M14 1.4
1 1/2 40 125 15.9 73 2 98.4 4 1/2 65 70 5/8 M14 1.8
2 50 150 17.5 92.1 2 120.7 4 5/8 70 85 3/4 M16 2.3
2 1/2 65 180 20.7 104.8 2 139.7 4 5/8 75 90 3/4 M16 3.2
3 80 190 22.3 127 2 152.4 4 5/8 75 90 3/4 M16 4.1
3 1/2 90 215 22.3 139.7 2 177.8 8 5/8 75 90 3/4 M16 5.9
4 100 230 22.3 157.2 2 190.5 8 5/8 75 90 3/4 M16 7.7
5 125 255 22.3 185.7 2 215.9 8 3/4 85 95 7/8 M20 9.1
6 150 280 23.9 215.9 2 241.3 8 3/4 85 100 7/8 M20 11.8
8 200 345 27 269.9 2 298.5 8 3/4 90 110 7/8 M20 20.5
10 250 405 28.6 323.8 2 362 12 7/8 100 115 1 M24 32
12 300 485 30.2 381 2 431.8 12 7/8 100 120 1 M24 50
14 350 535 33.4 412.8 2 476.3 12 1 115 135 1 1/8 M27 64
16 400 595 35 469.9 2 539.8 16 1 115 135 1 1/8 M27 82
18 450 635 38.1 533.4 2 577.9 16 1 1/8 125 145 1 1/4 M30 100
20 500 700 41.3 584.2 2 635 20 1 1/8 140 160 1 1/4 M30 130
24 600 815 46.1 692.2 2 749.3 20 1 1/4 150 170 1 3/8 M33 196

Types Of MS Pipe Flanges


MS Reducing Flange

Mild Steel Reducing Flanges

Mild Steel Weld Neck Flange

Mild Steel Weld Neck Flanges

Mild Steel Blind Flange

Mild Steel Blind Flanges

Mild Steel Flat Face Flange

Mild Steel Flat Face Flanges

Mild Steel RTJ Flange

Mild Steel RTJ Flanges

Mild Steel Raised Face Flange

Mild Steel Raised Face Flanges

Mild Steel Socket Weld Flange

Mild Steel Socket Weld Flanges

Mild Steel Slip On Flange

Mild Steel Slip On Flanges

Mild Steel Orifice Flange

Mild Steel Orifice Flanges

Mild Steel Spectacle Flange

Mild Steel Spectacle Flanges


Mild Steel Blind Flanges Chemical Composition


Element Content
Iron, Fe 98.81 – 99.26 % (as remainder)
Manganese, Mn 0.60 – 0.90 %
Phosphorous, P ≤ 0.040 %
Sulfur, S ≤ 0.050 %
Carbon, C 0.14 – 0.20 %

Mild Steel T4 Flange Mechanical Properties


Mechanical Properties Metric Imperial
Hardness, Brinell 126 126
Elongation at Break (In 50 mm) 15.0 % 15.0 %
Reduction of Area 40.0 % 40.0 %
Modulus of Elasticity 205 GPa 29700 ksi
Shear Modulus 80.0 GPa 11600 ksi
Hardness, Knoop (Converted from Brinell hardness) 145 145
Hardness, Rockwell B (Converted from Brinell hardness) 71 71
Tensile Strength, Yield 370 MPa 53700 psi
Hardness, Vickers (Converted from Brinell hardness) 131 131
Poissons Ratio 0.290 0.290
Machinability (Based on AISI 1212 steel. as 100% machinability) 70 % 70 %
Bulk Modulus 140 GPa 20300 ksi
Tensile Strength, Ultimate 440 MPa 63800 psi