USA UNS S31803 Dual-phase steel and S31803 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Special Steel | S31803 | UNS | USA | Dual-phase steel | 
| S31260 | |||||
| DP-3 | |||||
| DP-3 | |||||
| 3RE60 | |||||
| 3RE60 | |||||
| S31500 | |||||
| S31500 | |||||
| 2205 | |||||
| 2205 | |||||
| S31803 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | N(%) | 
|---|---|---|---|---|---|---|---|---|
| 0.03 | 1 | 2 | Max 0.03 | Max 0.02 | 21.0-23.0 | 4.50-6.50 | 2.50-3.50 | 2.50-3.50 | 
| 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) | 
|---|---|---|---|---|---|---|
| 648 (≥) | 751 (≥) | 31 | 41 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 44 | - | - | 0.21 | - | |||
| 725 | 725 | - | 32.3 | 343 | - | ||
| 999 | - | 32 | 24.2 | 313 | 434 | 
Heat treated : 1349°C - 1168°C
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