Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.13 | ||
| Si | - | - | ||
| Mn | - | - | ||
| Ni | - | - | ||
| Cr | - | 5.70 | ||
| Al | - | 6.30 | ||
| Cu | - | - | ||
| Ti | - | - | ||
| Fe | - | - | ||
| Mo | - | 2.00 | ||
| Co | - | - | ||
| Ta | - | 3.00 | ||
| Zr | - | 0.60 | ||
| W | - | 11.00 |
Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service
| 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) |
|---|---|---|---|---|---|---|
| 329 (≥) | 412 (≥) | 33 | 12 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 421 |
| 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 |
|---|---|---|---|---|---|---|---|
| 948 (≥) | 769 (≥) | 21 | 14 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 112 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 844 | 862 | 758 |
We can customize the production of SA-193 Grade B8M2 Class 2B grade, contact us for the best solution.
–sales@specificsteel.com