UK B.S. BS S 205, S.205 Specialsteel Specification for austenitic chromium-nickel steel wire and springs and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | S.205 | B.S. | UK | Specification for austenitic chromium-nickel steel wire and springs |
C | Si | Mn | P | S | Cr | Ni | Mo | Nb/Ti |
---|---|---|---|---|---|---|---|---|
≤0.15 | 0.20 -1.00 | 0.50 -2.00 | ≤0.035 | ≤0.025 | 17.00 -19.00 | 7.50 -9.00 | ≤ ≥ | ≤ ≥ |
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) |
---|---|---|---|---|---|---|
793 (≥) | 277 (≥) | 14 | 12 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 433 |
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 |
---|---|---|---|---|---|---|---|
43 | - | - | 0.23 | - | |||
629 | 683 | - | 23.3 | 344 | - | ||
985 | - | 41 | 44.2 | 442 | 213 |
Heat treated : 1253°C - 1187°C
BS S 205 | Specification for austenitic chromium-nickel steel wire and springs | BS-S-205.pdf |
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