Heat-resisting steel bars
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.75 | 0.85 | ||
| Si | 1.75 | 2.25 | ||
| Mn | 0.20 | 0.60 | ||
| P | - | 0.035 | ||
| S | - | 0.030 | ||
| Ni | 1.15 | 1.65 | ||
| Cr | 19.00 | 20.50 |
8Cr20Si2Ni
| 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) |
|---|---|---|---|---|---|---|
| 316 (≥) | 632 (≥) | 22 | 42 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 |
| 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 |
|---|---|---|---|---|---|---|---|
| 231 (≥) | 197 (≥) | 12 | 34 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 213 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 428 | 697 | 795 |
We can customize the production of 8Cr20Si2Ni grade, contact us for the best solution.
–sales@specificsteel.com