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SA574 4340

Alias

SA574 4340

Chemistry

Alloy Steel

Element Min Max
C (Carbon) 0.43% 0.48%
Mn (Manganese) 0.6% 0.8%
P (Phosphorus) 0.035%
S (Sulphur) 0.040%
Si (Silicon) 0.15% 0.35%
Ni (Nickel) 1.65% 2.%
Cr (Chromium) 0.7% 0.9%
Mo (Molybdenum) 0.2% 0.3%
Mechanical Property Min Max
Tensile Strength 1220 MPa
Yield Strength 0.2% offset 1100 MPa
Elongation 10% 5D
Reduction of Area 35%
Hardness (Rockwell C) 38 HRC 44 HRC
Hardness (Vickers) 372 DPH 434 DPH

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Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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