Carbon structural steels
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.12 | ||
| Si | - | 0.3 | ||
| Mn | - | 0.5 | ||
| P | - | 0.035 | ||
| S | - | 0.04 | ||
| Cr | - | 0.3 | ||
| Ni | - | 0.3 | ||
| Cu | - | 0.3 | ||
| N | - | 0.0080 |
This standard applies to steel product standards, technical specifications of the finished product chemical composition of the provisions of the allowable deviation.
| 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) |
|---|---|---|---|---|---|---|
| 152 (≥) | 184 (≥) | 12 | 24 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
| 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 |
|---|---|---|---|---|---|---|---|
| 738 (≥) | 857 (≥) | 24 | 34 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 234 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 296 | 984 | 358 |
We can customize the production of Q195 grade, contact us for the best solution.
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