Grade 30CrMnSi
China ISC A24302
Corresponding Standard GB /T 3077-2015
Alloy structure steels
Classification Alloy Steel
Properties Strength Quench Hardness
30CrMnSi Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.28 0.9 0.8 - - 0.8 - - -
Maximum Value 0.34 1.2 1.1 0.03 0.03 1.1 0.3 0.3 0.1
30CrMnSi Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
d=25 Quenching + Tempering ≥1080 ≥885 ≥10 ≥45 ≤229 ≥39
Approximate Comparison Table structural alloy steel
China Russia
GB ISC GOST
20CrMnSi
30CrMnSi
35CrMnSiA
A24202
A24302
A24303
20ХГС
30ХГС
35ХГСА
30CrMnSi Corresponding Standards(Same grade name, different standards)

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