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:
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Grade
|
15CrMo steel chemical composition (mass fraction) ( % )
|
|
|
C
|
Mn
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Si
|
Cr
|
Mo
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Ni
|
Nb + Ta
|
S
|
P
|
|
15CrMo
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0.12 ~ 0.18
|
0.40 ~ 0.70
|
0.17 ~ 0.37
|
0.80 ~ 1.10
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0.40 ~ 0.55
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≤0.30
|
_
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≤0.035
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≤0.035
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15CrMo mechanical properties of steel
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Grade
|
Tensile strength MPa
|
Yield point MPa
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Elongation ( % )
|
|
15CrMo steel pipe
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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.