Grade 41CrAlMo7-10
Corresponding Standard ISO 683-5-2017
Heat-Treatable Steels, Alloy Steels and Free-Cutting Steels-- Part 5: Nitriding Steels
Classification Alloy Steel
41CrAlMo7-10 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo Al
Minimum Value 0.38 - 0.4 - - 1.5 0.2 0.8
Maximum Value 0.45 0.4 0.7 0.025 0.035 1.8 0.35 1.2
41CrAlMo7-10 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Impact Energy Absorption
KV2
J
16≤d≤40, 8≤t≤20 Quenching and Tempering 1030~1230 ≥835 ≥10 ≥25
40≤d≤100, 20≤t≤60 Quenching and Tempering 980~1190 ≥835 ≥10 ≥25
100≤d≤160, 60≤t≤100 Quenching and Tempering 930~1130 ≥735 ≥12 ≥30
160≤d≤250, 100≤t≤160 Quenching and Tempering 880~1080 ≥675 ≥12 ≥30
Approximate Comparison Table Nitriding Steels
China Japan International Organization for Standardization European Standard
GB JIS ISO EN Numerical Grade
38CrMoAl SACM645 41CrAlMo7-10 41CrAlMo7-10 1.8509
41CrAlMo7-10 Corresponding Standards(Same grade name, different standards)

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