Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.03 | ||
| Mn | 1.20 | 2.00 | ||
| Si | 1.40 | 2.00 | ||
| P | - | 0.03 | ||
| S | - | 0.03 | ||
| Cr | 18.00 | 19.00 | ||
| Ni | 4.25 | 5.25 | ||
| Mo | 2.50 | 3.00 |
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General 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) |
|---|---|---|---|---|---|---|
| 816 (≥) | 299 (≥) | 23 | 21 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 |
| 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 |
|---|---|---|---|---|---|---|---|
| 878 (≥) | 286 (≥) | 24 | 31 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 133 | 156 | 612 |
We can customize the production of SA-789 S31500 grade, contact us for the best solution.
–sales@specificsteel.com