Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.03 | ||
| Mn | 5.00 | 7.00 | ||
| Si | - | 1.00 | ||
| P | - | 0.03 | ||
| S | - | 0.01 | ||
| Cr | 23.00 | 25.00 | ||
| Ni | 16.00 | 18.00 | ||
| Mo | 4.00 | 5.00 | ||
| N | 0.40 | 0.60 | ||
| Nb | - | 0.10 |
Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
| 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) |
|---|---|---|---|---|---|---|
| 776 (≥) | 184 (≥) | 11 | 21 | 34 | 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 |
|---|---|---|---|---|---|---|---|
| 247 (≥) | 246 (≥) | 33 | 13 | 22 | 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 |
|||||
| 274 | 638 | 811 |
We can customize the production of SA-213 S34565 grade, contact us for the best solution.
–sales@specificsteel.com