USA SAE F 837M (2002), F 837 Class A1-55 S20300 Specialsteel Standard Specification for Stainless Steel Socket Head Cap Screws (Metric) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | F 837 Class A1-55 S20300 | Austenite | SAE | USA | Standard Specification for Stainless Steel Socket Head Cap Screws (Metric) |
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) |
---|---|---|---|---|---|---|
824 (≥) | 152 (≥) | 24 | 24 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 212 |
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 |
---|---|---|---|---|---|---|---|
21 | - | - | 0.41 | - | |||
419 | 362 | - | 31.3 | 414 | - | ||
878 | - | 23 | 32.2 | 141 | 223 |
Heat treated : 1939°C - 1751°C
F 837M (2002) | Standard Specification for Stainless Steel Socket Head Cap Screws (Metric) | F-837M-(2002).pdf |
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