Grade 37CrNi3
China ISC A42372
Corresponding Standard GB /T 3077-2015
Alloy structure steels
Classification Alloy Steel
Properties Strength Quench Hardness
Density 7.8 g/cm3
37CrNi3 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.34 0.17 0.3 - - 1.2 3 - -
Maximum Value 0.41 0.37 0.6 0.03 0.03 1.6 3.5 0.3 0.1
37CrNi3 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 ≥1130 ≥980 ≥10 ≥50 ≤269 ≥47
Approximate Comparison Table Structural Alloy Steel
China Japan
GB JIS
37CrNi3
37CrNi3A
37CrNi3E
SNC836
37CrNi3 Corresponding Standards(Same grade name, different standards)

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