
Alloy Steel F91 Flanges Specification
Standards Specification Of : | ASTM A182 F91 Flanges |
---|---|
Pressure Rating ANSI | 150#, 300#, 400#, 600#, 900#, 1500#, 2500# |
Production technique |
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Most common types | Threaded / Screwed / Forged / Plate |
Japanese Standards | 5K, 10 K, 40 K, 16 K 20 K 30 K, 63 K |
Manufacturing Shapes | RTJ,FF, Raised Face, Lap-Joint Face, Large Tongue & Groove And Small Tongue Groove, Large Male-Female And Small Male-Female |
Size Chart | 1/2" to 48" |
Flanges Standards | MSS S44, ISO70051, EN-1092, ANSI/ASME B16.5, B16.47 Series A & B, ASME B16.48, ASME B16.36, DIN, BS1560-3.1, API7S-15, API, ISO, UNI, AWWA C207, IS 2062, EN1092, API7S-43, API605, BS4504 |
ASTM A182 F91 Blind Flanges Equivalent
Material Group | Common Name | Type | UNS | Forging Spec. | Casting Spec. Equivalent | DIN | DIN W. No | Application |
---|---|---|---|---|---|---|---|---|
2.1/4Cr-1Mo | K21590 | A182-F22 cl3 | A217-WC9 | 10CRM0910 | 1.7380 | Up to 593ºC (1100ºF), HP steam |
ASTM A182 F91 Weld Neck Flanges Chemical Composition
Element |
Weight % |
C | 0.08-0.12 |
Mn | 0.30-0.60 |
P | 0.020 Max |
S | 0.010 Max |
Si | 0.20-0.50 |
Ni | 0.40 Max |
Cr | 8.0-9.5 |
Mo | 0.85-1.05 |
V | 0.18-0.25 |
Cu | – |
Other | Cb, 0.06-0.10; N, 0.03-0.07; Al, 0.04 max. |
SA182 Gr F91 Slip On Flanges Mechanical Chart
Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
ASTM Gr A182 F91 Flanges | 415 | 585 | 20 |