Structural alloy steel bars. Specifications
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.33 | 0.40 | ||
| Si | 0.17 | 0.37 | ||
| Mn | 0.25 | 0.50 | ||
| Ni | 1.30 | 1.70 | ||
| S | - | 0.025 | ||
| P | - | 0.025 | ||
| Cr | 1.3 | 1.7 | ||
| Mo | 0.20 | 0.30 | ||
| Cu | - | 0.30 |
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 484 (≥) | 859 (≥) | 34 | 43 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 132 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 426 (≥) | 218 (≥) | 13 | 24 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 756 | 653 | 481 |
We can customize the production of 38Х2Н2МА grade, contact us for the best solution.
–sales@specificsteel.com