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England B.S. 309C40 Specification for steel castings for general engineering purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 309C40 / 309 C 40
Category Grade Standard Region/Area Standard Content
Metals 309 C 40 BS 3100 England Specification for steel castings for general engineering purposes

Chemical composition(mass fraction)(wt.%) of the 309 C 40

Element Min Max Similar

Mechanical Properties of steel grade 309 C 40

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)
461 (≥) 253 (≥) 12 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade 309 C 40

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 - -     0.42 -  
963 772 - 22.3 234   -  
313 - 23 11.2   333 242

Heat Treatment of steel grade 309 C 40

Heat treated : 1955°C - 1599°C

Technological Curves of steel grade 309 C 40

Cross Reference Table (Equivalent Grade) of 309 C 40

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