Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | 0.25 | 0.60 | ||
| Mn | 1.00 | 2.50 | ||
| P | - | 0.03 | ||
| S | - | 0.03 | ||
| Cr | 19.5 | 22.0 | ||
| Ni | 9.00 | 11.0 |
SA-479/SA-479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
For extruded shapes a minimum tensile strength of 485 N/mm2 is permitted; Nominal composition: 20Cr–10Ni
| 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) |
|---|---|---|---|---|---|---|
| 278 (≥) | 983 (≥) | 13 | 24 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
| 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 |
|---|---|---|---|---|---|---|---|
| 929 (≥) | 476 (≥) | 42 | 42 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 323 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 882 | 412 | 177 |
We can customize the production of SA-479 Type ER308 grade, contact us for the best solution.
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