Former SAE standard and former SAE Ex-steels
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.25 | ||
| Si | - | - | ||
| Mn | - | - | ||
| Cr | - | 25.50 | ||
| Ni | - | 10.50 | ||
| Mo | - | - | ||
| Co | - | 55.00 | ||
| W | - | 7.00 | ||
| Al | - | - | ||
| Cu | - | - | ||
| Ti | - | - | ||
| Fe | - | 2.00 | ||
| B | - | 0.01 |
Former SAE standard and former SAE Ex-steels
| 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) |
|---|---|---|---|---|---|---|
| 199 (≥) | 615 (≥) | 24 | 11 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 |
| 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 |
|---|---|---|---|---|---|---|---|
| 953 (≥) | 348 (≥) | 44 | 13 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 233 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 114 | 994 | 448 |
We can customize the production of EX 45 grade, contact us for the best solution.
–sales@specificsteel.com