Grade SCMn 2
Corresponding Standard JIS G 5111-1991
High tensile strength carbon steel castings and low alloy steel castings structural purposes
Classification Cast Steel
SCMn 2 Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value 0.25 0.3 1 - -
Maximum Value 0.35 0.6 1.6 0.04 0.04
SCMn 2 Mechanical Properties
condition Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Cast steel SCMn 2A Normalization Followed by Tempering ≥590 ≥345 ≥16 ≥35 ≥143
Cast steel SCMn 2B Quenching Followed by Tempering ≥640 ≥440 ≥16 ≥35 ≥183
1 Approximate Comparison Table Structural Alloy Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB JIS ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade GOST BS EN/BS
30Mn2 SCMn2 1527
Gr.1330
28Mn6 28Mn6 35Mn5 28Mn6 1.1170 30G
30G2
120M36
150H19
150M19
150M28
2 Approximate Comparison Table Cast Steel
Japan Germany Russia
JIS DIN EN/DIN W-Nr. GOST
SCMn2 GS-30Mn5 1.1165 30ГЛ

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