CNS standard heat resistant steel bar steel grade and chemical composition
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | - | 0.25 | ||
Si | - | 1.50 | ||
Mn | - | 2.00 | ||
P | - | 0.040 | ||
S | - | 0.030 | ||
Cr | 24.00 | 26.00 | ||
Ni | 19.00 | 22.00 | ||
Mo | - | - | ||
N | - | - |
CNS standard heat resistant steel bar steel grade and chemical composition
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) |
---|---|---|---|---|---|---|
368 (≥) | 239 (≥) | 23 | 14 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 |
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 |
---|---|---|---|---|---|---|---|
283 (≥) | 594 (≥) | 23 | 43 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
889 | 539 | 118 |
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