Pipeline Steel

BM/L245M/ L245MS, X42M/L290M/ L290MS, X46M/L320M/ L320MS, X52M/L360M/ L360MS, X56M/L390M/ L390MS, X60M/L415M/ L415MS, X65M/L450M/ L450MS, X70M/L485M/ L485MS, X80M/L555M

Commodity name： Pipeline Steel

Category:

Pipeline Steel

Email:

david@prosper-bridge.com

Product Inquiry

Product Introduction:

The series of product is comprised of B, X42, X46, X52, X56,X60, X65, X70, X80, X90 by strength; it can be grouped into longitudinal submerged arc welding (LSAW), electric resistance weld pipe (ERW), spiral submerged arc welding (SSAW) pipe by welding process; it can be divided into oil transportation pipeline, natural gas pipeline, pipeline steel for acid environment and o-cean environment by medium and environment. Except the oil and natural gas industry application, this kind of pipeline can be widely used in pressure-bearing transportation such as water trans- portation, chemical material and mineral slurry. With different pipe manufacturing processes and applications, the detail supply technology specification could be different.

Supply Grade and Norm:

APISPEC 5L GB/T9711
(PSL1)	(PSL2)
B/L245	BM/L245M
X42/L290	X42M/L290M
X46/L320	X46M/L320M
X52/L360	X52M/L360M/X52MS/L360MS/X52MO/L360MO
X56/L390	X56M/L390M/X56MS/L390MS/X56MO/L390MO
X60/L415	X60M/L415M /X60MS/L415MS/X6OMO/L415MO
X65/L450	X65M/L450M/X65MS /L450MS/X65MO/L450MO
X70/L485	X70M/L485M
X80	X80M/L555M

Remark:“-MS”is pipeline for acid environment,“-MO”is pipeline for ocean environment.

Mechanical property requirement of pipeline steel:

Tensile property

Steel grade	Yield strength Rt _0.5 MPa		Tensile strength R _m MPa		Max yield ratio Rt _0.5/Rm	Min elongation gauge length when gauge length at 50mm Af,min%
Steel grade	Minimum	Maximum	Minimum	Maximum	Max yield ratio Rt _0.5/Rm
BM/L245M/ L245MS	280	450	415	655	0.9	30
X42M/L290M/ L290MS	330	495	415	655	0.9	30
X46M/L320M/ L320MS	350	525	435	655	0.9	30
X52M/L360M/ L360MS	400	550	460	655	0.9	28
X56M/L390M/ L390MS	390	545	490	760	0.9	28
X60M/L415M/ L415MS	460	585	520	760	0.9	28
X65M/L450M/ L450MS	535a	620	520b	760	0.9	26
X70M/L485M/ L485MS	515a	635	570	760	0.91	26
X80M/L555M	585	705	625	825	0.92	25

Mechanical property and process performance:

Steel grade	V-type impact test					Drop-weight test			Hardness test
	T, ℃	Akv,J		Fiber section ratio, %		T, ℃	Fiber section rate, %		HV10
		Akv,J		Fiber section ratio, %			Fiber section rate, %
		Single value	Mean value	Single value	Mean value		Single value	Mean value
BM/L245M/ L245MS	-20	≥ 100	≥ 120	≥80	≥90	-15	≥70	≥85	≤230
X42M/L290M/L290MS	-20	≥ 100	≥ 120	≥80	≥90	-15	≥70	≥85	≤230
X46M/L320M/L320MS	-20	≥ 100	≥ 120	≥80	≥90	-15	≥70	≥85	≤230
X52M/L360M/L360MS	-20	≥ 100	≥ 120	≥80	≥90	-15	≥70	≥85	≤230
X56M/L390M/L390MS	-20	≥ 100	≥ 120	≥80	≥90	-15	≥70	≥85	≤230
X60M/L415M/L415MS	-20	≥ 120	≥ 160	≥80	≥90	-15	≥70	≥85	≤230
X65M/L450M/L450MS	-20	≥ 120	≥ 160	≥80	≥90	-15	≥70	≥85	≤240
X70M/L485M/L485MS	-20	≥ 150	≥ 180	≥80	≥90	-15	≥70	≥85	≤250
X80M/L555M	-20	≥ 180	≥200	≥80	≥90	-15	≥70	≥85	≤255