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708M40

Alias

708M40
42CD4
1.7225
42CrMo4

Chemistry

Element Min Max
C (Carbon) 0.36% 0.44%
Cr (Chromium) 0.9% 1.2%
Mn (Manganese) 0.7% 1%
Mo (Molybdenum) 0.15% 0.25%
Mechanical Property Min Max
Ultimate Tensile Strength (UTS) 775 MPa 925 MPa
Yield Strength 585 MPa
0.2% Proof Stress 570 MPa
Elongation 15%
Gauge Length 5.65vSo
Hardness (Brinell) 223 277 HB
Charpy V-Notch Impact = Room Temp. 50 Joules

Properties

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