USA UNS SAE J 405 (1998), 308 Specialsteel Chemical compositions of SAE wrought stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | 308 | Austenite | UNS | USA | Chemical compositions of SAE wrought stainless steels | 
| C | Si | Mn | P | S | Cr | Ni | 
|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 19.0 -21.0 | 10.0 -12.0 | 
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 914 (≥) | 984 (≥) | 14 | 44 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 312 | 
| Temperature (°C) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 34 | - | - | 0.22 | - | |||
| 694 | 476 | - | 33.3 | 134 | - | ||
| 855 | - | 14 | 41.2 | 444 | 234 | 
Heat treated : 1427°C - 1493°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 1.0308 | |||
| 1.4308 | |||
| 1.4308 | |||
| 308 | |||
| S30800 | |||
| S30815 | |||
| R30816 | |||
| M-308 | |||
| 308 | |||
| S30800 | |||
| S30815 | |||
| S30815 | |||
| S30815 | |||
| S30815 | |||
| S30815 | |||
| 308 | |||
| S30800 | |||
| AMS 6308A | |||
| UNS W50308 | |||
| AWS E308 | 
| SAE J 405 (1998) | Chemical compositions of SAE wrought stainless steels | SAE-J-405--(1998).pdf | 
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