USA SAE F 738M (2002), F738 Class A1-70 S38400 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 A1-70 S38400 | Austenite | SAE | USA | Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs |
| C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|
| ≤0.08 | ≤2.00 | ≤1.00 | ≤0.03 | ≤0.03 | 15.00 -17.00 | 17.00 -19.00 |
| 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) |
|---|---|---|---|---|---|---|
| 768 (≥) | 115 (≥) | 11 | 23 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 412 |
| 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 |
|---|---|---|---|---|---|---|---|
| 11 | - | - | 0.31 | - | |||
| 411 | 973 | - | 43.3 | 234 | - | ||
| 119 | - | 31 | 34.2 | 142 | 222 |
Heat treated : 1636°C - 1727°C
| F 738M (2002) | Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs | F-738M-(2002).pdf |
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