Grade 15CrMo
Corresponding Standard GB /T 17107-1997
Structural Steel Grades And Mechanical Property For Forgings
Classification Alloy Steel
15CrMo Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.12 0.17 0.4 - - 0.8 - - 0.4
Maximum Value 0.18 0.37 0.7 0.035 0.035 1.1 0.3 0.3 0.55
• 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
15CrMo 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
%
Hardness
HBW
Impact Energy Absorption
KV2
J
d≤100 Sample Direction: tangential Quenching + tempering ≥440 ≥275 ≥20 116~179 ≥55
100<d≤300 Sample Direction: tangential Quenching + tempering ≥440 ≥275 ≥20 116~179 ≥55
300<d≤500 Sample Direction: tangential Quenching + tempering ≥430 ≥255 ≥19 116~179 ≥47
• 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.
1 Approximate Comparison Table structural alloy steel
China Taiwan, China Japan South Korea Germany France Russia United Kingdom
YB ISC CNS JIS KS DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
15CrMo A30152 SCM415 SCM415 SCM415 15CrMo5 1.7262 15CD4.05 15ХМ 1501-620Cr31
2 Approximate Comparison Table structural alloy steel
China United States
GB ASTM/AISI
15CrMo A182 F12

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