Heat-resisting steel bars and wire rods
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | 0.16 | ||
| Si | - | 1.00 | ||
| Mn | 1.00 | 2.00 | ||
| P | - | 0.04 | ||
| S | - | 0.03 | ||
| Cr | 20.00 | 22.50 | ||
| Ni | 19.00 | 21.00 | ||
| Mo | 2.50 | 3.50 | ||
| W | 2.00 | 3.00 | ||
| Co | 18.50 | 21.00 | ||
| Nb | 0.75 | 1.25 | ||
| N | 0.10 | 0.20 |
Heat-resisting steel bars and wire rods
| 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) |
|---|---|---|---|---|---|---|
| 485 (≥) | 925 (≥) | 31 | 34 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 222 |
| 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 |
|---|---|---|---|---|---|---|---|
| 819 (≥) | 181 (≥) | 23 | 41 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 416 | 281 | 619 |
We can customize the production of SUH 661 grade, contact us for the best solution.
–sales@specificsteel.com