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England B.S. S2W Specification for austenitic cast iron and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S2W / S2W
Category Grade Standard Region/Area Standard Content
Metals S2W BS 3468 England Specification for austenitic cast iron

Chemical composition(mass fraction)(wt.%) of the S2W

Element Min Max Similar
Si 1.5000 2.2000 -
P - 0.0500 -
Ni 18.0000 22.0000 -
Nb 0.1200 0.2000 -
Mn 0.5000 1.5000 -
Mg - 0.0600 -
Cu - 0.5000 -
Cr 1.5000 2.5000 -
C - 3.0000 -

Mechanical Properties of steel grade S2W

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)
845 (≥) 757 (≥) 33 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade S2W

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 - -     0.44 -  
719 561 - 44.3 122   -  
381 - 32 11.2   443 434

Heat Treatment of steel grade S2W

Heat treated : 1328°C - 1786°C

Technological Curves of steel grade S2W

Cross Reference Table (Equivalent Grade) of S2W

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