USA SAE F 738M (2002), F738 Class A1-50 S20300 Specialsteel Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | F738 Class A1-50 S20300 | Austenite | SAE | USA | Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs |
C | Mn | Si | P | S | Cr | Ni | Mo | Cu |
---|---|---|---|---|---|---|---|---|
≤0.08 | 5.00 -6.50 | ≤1.00 | ≤0.04 | 0.18 -0.35 | 16.00 -18.00 | 5.00 -6.00 | ≤0.50 | 1.75 -2.25 |
Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
---|---|---|---|---|---|---|
729 (≥) | 486 (≥) | 34 | 32 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 |
Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
---|---|---|---|---|---|---|---|
14 | - | - | 0.11 | - | |||
777 | 857 | - | 41.3 | 424 | - | ||
513 | - | 13 | 24.2 | 214 | 222 |
Heat treated : 1345°C - 1698°C
F 738M (2002) | Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs | F-738M-(2002).pdf |
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