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.