15CrMo steel technical parameters

Posted:2021-10-14 17:27:40

15CrMo steel is a heat-resistant steel with pearlite structure, which has high thermal strength (δb≥440MPa) and oxidation resistance at high temperatures, and has a certain resistance to hydrogen corrosion. Due to the high content of Cr, C and other alloying elements in the steel, the hardening tendency of the 15CrMo steel is obvious and the weldability is poor.

Chemical composition of 15CrMo steel:

Grade	C	Mn	Si	Cr	Mo	Ni	Nb+Ta	S	P
15CrMo	0.12-0.18	0.40-0.70	0.17-0.37	0.80-1.10	0.40-0.55	≤0.30	-	≤0.035	≤0.035

Mechanical properties of 15CrMo steel:

Grade	Tensile strength MPa	Yield point MPa	Elongation（%）
15CrMo	440-640	235	21

15CrMo steel has sufficient toughness, plasticity and bending strength. It is commonly used in the manufacture of crankshafts, gears, camshafts and gears in important reducers of internal combustion engines.

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