ASTM A182 F304 is a forging material specification for stainless steel in the F304 grade that is used to make naked forgings, forged and machined products, and other high-temperature applications. Astm a182 grade F304 forged flanges, fittings, valve bodies, fasteners, plates, bars, rings, and other pressure parts are available from Resistant Metal Alloys.
Chemical composition, mechanical properties, heat treatment, and other supplementary requirements for 304 stainless steel forgings and forged products are covered by the ASTM A182 specification.
| Grade Symbol | UNS Number | Alloy | Elements | Composition % |
|---|---|---|---|---|
| F304 | S30400 | 18 chromium, 8 nickel 304G |
Carbon | 0.08 max |
| Manganese | 2.00 max | |||
| Phosphorus | 0.045 max | |||
| Sulfur | 0.030 max | |||
| Silicon | 1.00 max | |||
| Nickel | 8.0 - 11.0 | |||
| Chromium | 18.0 - 20.0 | |||
| Nitrogen | 0.10 |
| Property | Value |
|---|---|
| Tensile Strength, min, ksi [MPa] | 75 [515] |
| Yield Strength, min, ksi [MPa] | 30 [205] |
| Elongation in 2 in. [50mm] or 4D, min, % | 30 |
| Reduction or Area, min, % | 50 |
| Brinell Hardness Number, HBW | -- |