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ASTM A182 F316 / 316L / F316H Stainless Steel Forged Pipe Fittings & Flanges
ASTM A182 F316 / 316L /316H is the specifcation for stainless steel forged fittings and flanges, it is representative grade in Stainless steel material. ASTM A182 is used in pressure system of pipeline, it include flanges, fittings and similar parts to specificed dimensions or to dimensional standards, such as the ASME specificaiton.
Markings on Stainless Steel Forged Fittings
Specification of Stainless Steel Socket Weld Fittings
| Specification | ASTM A182 & ASME SA182/ ANSI/ASME B16.11 / MSS-SP-43/79/83 |
| Size Range | 1/8" NB to 4"NB in Class 3000lb, 6000lb, 9000lb |
| Type | Threaded Elbow, Tee, Cross, Coupling, Cap, Lateral Tee, Union |
| Grades | ASTM A182 F304/304L/304H, F316/316L/316H, F321/321H, F347/347H, F51, F53, F55, F56, F60 |
| Thread Type | NPT, PT, BSPP, BSPT |
Standard for Stainless Steel Forged Pipe Fittings
ASME B16.11
This Standard covers ratings, dimensions, tolerances, marking and material requirements for socket-welding and Threaded Forged Fittings.
ASTM A182 / A182M
Standard Specification for Forged Fittings, and Parts for High-Temperature Service
MSS SP-83
Class 3000 and 6000 Pipe Unions, Socket Welding and Threaded
MSS SP-95
This Standard Practice covers dimensions, finish, tolerances, marking, and material for carbon steel and alloy steel Swaged Nipples (male end reducing fittings), NPS 1/4 through NPS 12 and Bull Plugs (hollow or solid male closures) NPS 1/8 through NPS 12.
ASTM A182 F316 Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
| F316 | 0.08 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0 - 18.0 | 10.0 - 14.0 | 2.0 - 3.0 |
| F316H | 0.04 - 0.1 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0 - 18.0 | 10.0 - 14.0 | 2.0 - 3.0 |
| F316L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0 - 18.0 | 10.0 - 15.0 | 2.0 - 3.0 |
ASTM A182 F316 Mechnical Properties
| Grade | Tensile Strength(Mpa) | Yield Tensile (Mpa) | Elongation (%) | Hardness (HB) |
| F316 | 515 | 205 | 30 | - |
| F316H | 515 | 205 | 30 | - |
| F316L | 485 | 170 | 30 | - |
SS Threaded Fittings Features