Grade 12CrMoV
Corresponding Standard GB /T 17107-1997
Structural Steel Grades and Mechanical Property for Forgings
Classification Alloy Steel
12CrMoV Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo V
Minimum Value 0.08 0.17 0.4 - - 0.3 - - 0.25 0.15
Maximum Value 0.15 0.37 0.7 0.035 0.035 0.6 0.3 0.3 0.35 0.3
• High-quality steel——P≤0.035;S≤0.035;Cu≤0.3;Cr≤0.3;Ni≤0.3
• Extra-quality steel (Suffix A)——P≤0.025;S≤0.025;Cu≤0.25;Cr≤0.3;Ni≤0.3
• Special High-Quality Steel (Suffix E)——P≤0.025;S≤0.015;Cu≤0.25;Cr≤0.3;Ni≤0.3
12CrMoV Mechanical Properties
diameter or thickness
d
mm
Mark
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≤100 Sample Direction: Longitudinal Normalizing + tempering ≥470 ≥245 ≥22 ≥48 143~179 ≥39
100<d≤300 Sample Direction: Longitudinal Normalizing + tempering ≥430 ≥215 ≥20 ≥40 123~167 ≥39
• The forgings must be inspected for mechanical properties after performance heat treatment and before any surface treatment.
• After the samples are removed, no heat treatments that affect the mechanical properties or any processing that influences the test results shall be conducted.
• Mechanical property testing primarily evaluates the material\'s tensile strength, impact resistance, and hardness. When conducting tensile, impact, and hardness tests simultaneously, the hardness value is for reference only. Alternatively, one may choose to perform only one of the tensile, impact, or hardness tests.
Approximate Comparison Table Structural Alloy Steel
China United States Germany France Russia Sweden United Kingdom
GB ISC ASTM/AISI DIN EN/DIN W-Nr. NF EN/NF GOST SS14 BS EN/BS
12CrMo
12CrMoV
A30122
A31122
4119 13CrMo44 1.7335 12CD4 12ХМ
12ХМФ
2216 1501-620Cr27
12CrMoV 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"!