ASTM A182 F44 is a forging material specification for 44-grade stainless steel that is used to make naked forgings or forged and machined products for high-temperature applications. ASTM A182 f44 forged bolts, screws, nuts, studs, threaded rods, and similar fasteners or bolting parts are available from Hastelloy Bolts China.
For 44 stainless steel forgings and forged products, the ASTM A182 specification covers chemical composition, mechanical characteristics, heat treatment, and various supplemental requirements.
Identification Symbol | UNS Number | Grade | Elements | Composition % |
---|---|---|---|---|
F44 | S31254 | 20 chromium, 18 nickel, 6 molybdenum, low carbon |
Carbon | 0.020 max |
Manganese | 1.00 max | |||
Phosphorus | 0.030 max | |||
Sulfur | 0.10 max | |||
Silicon | 0.80 max | |||
Nickel | 17.5 - 18.5 | |||
Chromium | 19.5 - 20.5 | |||
Molybdenum | 6.00 - 6.5 | |||
Copper | 0.50 - 1.00 | |||
Nitrogen | 0.18 - 0.25 |
Property | Value |
---|---|
Tensile Strength, min, ksi [MPa] | 94 [650] |
Yield Strength, min, ksi [MPa] | 44 [300] |
Elongation in 2 in. [50mm] or 4D, min, % | 35 |
Reduction or Area, min, % | 50 |
Brinell Hardness Number, HBW | -- |