Korea KS D 3731 (2002), D 3732 (2002), STR660 Specialsteel Heat - resisting steel plates and sheets and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | STR660 | Austenite | KS | Korea | Heat - resisting steel plates and sheets |
| C | Si | Mn | P | S | Cr | Ni | Mo | N | Al | Ti | V | B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 13.50 -16.00 | 24.00 -27.00 | 1.00 -1.50 | ≤ ≥ | ≤0.35 | 1.90 -2.35 | 0.10 -0.50 | 0.001 -0.010 |
| 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) |
|---|---|---|---|---|---|---|
| 583 (≥) | 172 (≥) | 22 | 34 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
| 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 | - | - | 0.33 | - | |||
| 295 | 522 | - | 34.3 | 332 | - | ||
| 251 | - | 24 | 42.2 | 144 | 144 |
Heat treated : 1231°C - 1981°C
| D 3731 (2002) | Heat - resisting steel bars | D-3731-(2002).pdf |
| D 3732 (2002) | Heat - resisting steel plates and sheets | D-3732-(2002).pdf |
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