Steels of blade for steam turbine
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.1500 | 0.2000 | ||
| Mn | 0.5000 | 0.8000 | ||
| P | - | 0.0200 | ||
| S | - | 0.0150 | ||
| Si | - | 0.5000 | ||
| Ni | 0.3000 | 0.6000 | ||
| Cr | 10.0000 | 12.0000 | ||
| Mo | 0.6000 | 0.9000 | ||
| Cu | - | 0.1000 | ||
| V | 0.2000 | 0.3000 | ||
| Al | - | 0.0300 | ||
| N | 0.0400 | 0.0900 | ||
| Nb | 0.2000 | 0.6000 |
S47670
| 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) |
|---|---|---|---|---|---|---|
| 647 (≥) | 399 (≥) | 34 | 32 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
| 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 |
|---|---|---|---|---|---|---|---|
| 566 (≥) | 588 (≥) | 44 | 31 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 548 | 115 | 644 |
We can customize the production of S47670 grade, contact us for the best solution.
–sales@specificsteel.com