Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.02 | ||
| Mn | - | 1.00 | ||
| Si | - | 0.80 | ||
| P | - | 0.03 | ||
| S | - | 0.01 | ||
| Cr | 19.50 | 20.50 | ||
| Ni | 17.50 | 18.50 | ||
| Mo | 6.00 | 6.50 | ||
| Cu | 0.50 | 1.00 | ||
| N | 0.18 | 0.22 |
Welded Large Diameter Austenitic Steel Pipe for Corrosive or 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) |
|---|---|---|---|---|---|---|
| 742 (≥) | 995 (≥) | 14 | 44 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 232 |
| 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 |
|---|---|---|---|---|---|---|---|
| 367 (≥) | 377 (≥) | 13 | 33 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 654 | 971 | 695 |
We can customize the production of SA-409 S31254 grade, contact us for the best solution.
–sales@specificsteel.com