Grade 309C40
Corresponding Standard BS 3100-1991
Specification for Steel castings for general engineering purposes
Classification Cast Steel
Properties Corrosion Resistance
309C40 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - - - - - 25 8 -
Maximum Value 0.5 2 2 0.05 0.05 30 12 1.5
309C40 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Yield Point
σs
Elongation or Extension Rate
δ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
N or N+T or QQ+T or WQ+T 540~690 ≥320 ≥16 152~207 ≥30

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!