Grade 24CrMo 5
Germany W-Nr. 1.7258
Corresponding Standard DIN 17240-1976
Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts
Classification Alloy Steel
24CrMo 5 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.2 0.15 0.5 - - 0.9 0.2
Maximum Value 0.28 0.35 0.8 0.03 0.035 1.2 0.35
24CrMo 5 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Impact Energy Absorption
KV2
J
d≤100 Quenched and Tempered (V) 600~750 ≥440 ≥18 ≥60 ISO-V
≥118
100<d≤160 Quenched and Tempered (V) 600~750 ≥420 ≥18 ≥60 ≥102

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