Korea KS D 3731 (2002), STR600 Specialsteel Heat - resisting steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | STR600 | Martensite | KS | Korea | Heat - resisting steel bars |
| C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu | Nb | V |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.15 -0.20 | ≤0.50 | 0.50 -1.00 | ≤0.04 | ≤0.03 | 10.00 -13.00 | ≤0.60 | 0.30 -0.90 | ≤ ≥ | ≤0.30 | 0.20 -0.60 | 0.10 -0.40 |
| 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) |
|---|---|---|---|---|---|---|
| 424 (≥) | 898 (≥) | 22 | 31 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 111 |
| 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 |
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.44 | - | |||
| 276 | 868 | - | 32.3 | 321 | - | ||
| 926 | - | 32 | 23.2 | 434 | 113 |
Heat treated : 1516°C - 1114°C
| D 3731 (2002) | Heat - resisting steel bars | D-3731-(2002).pdf |
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