Alloy Steel Pipe

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Generally, alloy steel pipe contains relatively more Cr while the ordinary carbon steel seamless pipe contains no or less alloy component, so this alloy pipe has more remarkable resistance to high temperature, low temperature and corrosion. In addition, it has more functions and higher value in use than common seamless pipe, thus finding wide applications in such industries as oil, aerospace, chemical, power, boiler, military, etc.

As an authorized steel and metal supplier, N-STEEL has cooperated with a lot of well renowned steel plants at home and abroad for a long time. The alloy steel pipe we supply comes with a wide external diameter range of 19mm-711mm, wall thickness of 1.65mm-50mm and length of 6m-11.8m. Sufficient supply of such industrial pipe is guaranteed.

If you want to know more details about this product, please feel free to contact us!

Technical Parameters of Alloy Steel Pipe

Chemical Composition (%)

Standard	Steel grade	C	Mn	Si	Cr	Mo	V	S	P
ASTM A335	P1	0.10 ~0.20	0.30 ~0.80	0.10 ~0.50		0.44 ~0.65		≤0.045	≤0.045
	P11	≤0.15	0.30 ~0.60	0.50 ~1.00	1.00 ~1.50	0.44 ~0.65		≤0.030	≤0.030
	P12	≤0.15	0.30 ~0.61	≤0.50	0.80 ~1.25	0.44 ~0.65		≤0.045	≤0.045
	P2	0.10 ~0.20	0.30 ~0.61	0.10 ~0.30	0.50 ~0.81	0.44 ~0.65		≤0.045	≤0.045
	P22	≤0.15	0.30 ~0.60	≤0.50	1.90 ~2.60	0.87 ~1.13		≤0.030	≤0.030
	P5	≤0.15	0.30 ~0.60	≤0.50	4.00 ~6.00	0.45 ~0.65		≤0.030	≤0.030
	P9	≤0.15	0.30 ~0.60	0.25 ~1.00	8.00 ~10.00	0.90 ~1.10		≤0.030	≤0.030
	P91	0.08-0.12	0.30-0.60	0.2-0.5	8.00 ~9.5	0.85 ~1.05		≤0.030	≤0.030

Mechanical Properties

Standard	Steel grade	σs	σb	δs
Standard	Steel grade	(MPa)	(MPa)	(%)
aASTM A335	P1	207	379	22
	P11	207	413	22
	P12	207	413	22
	P2	207	379	22
	P22	207	413	22
	P5	207	413	22
	P91	415	585	22