GB/T 3077 15CrMo alloy steel

15CrMo Steel pipe material grade is 15CrMo, is a high-quality low-alloy structural steel, which contains CR, MO more, its high temperature, corrosion-resistant performance is very good.

The 15CrMo-series Pearlite-heat-resisting steels have high thermal strength (Δb≥440mpa) and anti-oxidation at high temperature, and have certain capability of resisting hydrogen corrosion. Because of the high content of CR, C and other alloying elements in steel, the hardening tendency of steel is obvious and the weld ability is poor.

15CrMo steel chemical composition:

Grade	15CrMo steel chemical composition (mass fraction) ( % )
	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

15CrMo mechanical properties of steel

Grade	Tensile strength MPa	Yield point MPa	Elongation ( % )
15CrMo steel pipe	440 ~ 640	235	twenty one

15CrMo alloy seamless steel tube for its high temperature resistance, low temperature resistance , corrosion resistance has huge advantage over other seamless steel tubes, so the alloy tube are widely used in petroleum, chemical, electric power, boiler and other industries.

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