Seamless Steel Pipe

Seamless Steel Pipe( SMLS Steel Pipe ),Seamless Steel Tube

Types of Seamless Steel Pipe from Our Factory

Types	Uses
Structure Purposes	General structure and mechanical
Liquid Services	Petroleum, gas and other fluids conveying
Low and Medium Pressure	Steam and boiler manufacturing
Hydraulic Pillar Service	Hydraulic support
Auto Semi-shaft Casing	Auto sem-shaft casing
Line Pipe	Oil and gas conveying
Tubing and Casing	Oil and gas conveying
Drill Pipes	Well drilling
Geological Drilling Pipes	Geological drilling
Petroleum Cracking Tubes	Furnace tubes, heat exchangers

Standards and Applications

Standards	Grades	Class
API	API 5L	Line pipe for pipeline transportation systems
	API 5CT	Tubing and casing for wells
	API 5DP	Drill Pipe for well drilling
ASTM	ASTM A53	Used as structural steel or for low-pressure plumbing
	ASTM A106	seamless carbon steel pipe for high-temperature service
	ASTM A335	for seamless ferritic alloy-steel pipe for high-temperature service
	ASTM A213	for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes
	ASTM A179	for seamless Cold-drawn low-carbon steel heat-exchanger and condenser tubes
	ASTM A192	for seamless carbon steel boiler tubes for high-pressure service
	ASTM A210	for seamless medium-carbon steel boiler and superheater tubes
	ASTM A333	for seamless steel pipe for low-temperature service and other applications with required notch toughness
	ASTM A519	for seamless carbon and alloy steel mechanical tubing
	ASTM A252	for seamless and welded steel pipe piles
DIN	DIN 17175	for heat resistant seamless steel pipe lines
	DIN 1629	for seamless circular tubes of non alloys steels wth special quality requirements
	DIN 2391	for cold drawn or cold rolled precision seamless steel tubes
JIS	JIS G3454	seamless carbon steel pipe for pressure service
	JIS G3456	seamless carbon steel pipe for high temperature service
	JIS G3461	seamless carbon steel pipe for boiler and heat exchanger
EN	EN 10210	for hot finished seamless structural hollow sections of non-alloy steels
EN	EN 10216	seamless steel tubes for pressure purposes
BS	BS 3059	for carbon,alloy and austenitic stainless steel tubes with specified elevated temperature properties

Dimension Tolerances of Seamless Steel Pipe

Pipe types	Pipe Szie(mm)		Tolerances
Hot rolled	OD	<50	±0.50mm
	OD	≥50	±1%
	WT	<4	±12.5%
		≥4～20	+15%, -12.5%
		>20	±12.5%
Cold drawn	OD	6～10	±0.20mm
		10～30	±0.40mm
		30～50	±0.45
		>50	±1%
	WT	<1	±0.15mm
		>1～3	+ 15%, – 10%
		>3	+ 12.5%, – 10%

TUBE FOR STRUCTURAL PURPOSES

Sizes: Out Diameter: 1-1/4″-16″, Wall Thickness: 0.109″-0.562″

Standard:ASTM A53, ASTM A106, ASTM A500/501-98, ASTM A519-98, JIS G3441-1994, JIS G3444-1994, BS EN 10210-1

Application:Used in the general structure and the mechanism, including construction, machinery, transportation

BOILER PIPE

Sizes: Out Diameter: 6.0mm-114.0mm, Wall Thickness: 1.0mm-15.0mm

Standard: GB3087-1999, ASTM A179, ASTM A106, JIS G3454
Application:Used for manufacturing superheated pipelines, the steam pipe, boiling water tube, flue tube, small flue tube, etc.

SEAMLESS STEEL PIPES FOR LIQUID SERVICES

Sizes: Out Diameter: 19.05-168.3mm, Wall Thickness: 2.31-14.27mm

Standard:GB/T8163-1999, ASTM A53-98, JIS G3452-1998, JIS G3454-1998, ASTM A106, DIN 1629-1984
Application:For conveying of petroleum, gas and other fluids

LINE PIPES

Sizes: Out Diameter: 73-630mm, Wall Thickness: 6-35mm
Standard:API 5L
Application:For gas, water, transportation in Petroleum and natural gas industries

DRILL PIPES

Sizes: Out Diameter: 2-7/8″-6-5/8″, Wall Thickness: up to 0.813″
Standard:API 5D
Application:For well drilling

PETROLEUM CRACKING PIPES

Sizes: Out Diameter: 1.315″- 20″, Wall Thickness: 0.133″-0.500″

Standard:GB9948-1988
Application:For manufacturing of furnace tubes, heat exchangers and pipelines in refineries

Chemical Composition and Mechanical Properties

Standard

Grade

Chemical Components (%)

Mechanical Properties

Tensile STrength(Mpa)

Yield STrength(Mpa)

Elongation

(%)

ASTM A53

≤0.25

≤0.95

≤0.05

≤0.06

≤0.15

≤0.40

≤0.08

≥330

≥205

≥29.5

≤0.30

≤1.2

≤0.05

≤0.06

≤0.15

≤0.40

≤0.08

≥415

≥240

≥29.5

Standard

Grade

Chemical Components(%)

Mechanical Properties

Tensile STrength

(Mpa)

Yield STrength

(Mpa)

Elongation(%)

ASTM A106

≤0.30

≥0.10

0.29-1.06

≤0.035

≤0.15

≤0.40

≤0.08

≥415

≥240

≥30

≤0.35

≥0.10

0.29-1.06

≤0.035

≤0.15

≤0.40

≤0.08

≥485

≥275

≥30

Standard	Grade	Chemical Components(%)					Mechanical Properties
Standard	Grade	c	Si	Mn	P	S	Tensile STrength(Mpa)	Yield STrength(Mpa)	Elongation(%)
ASTM A179	A179	0.06-0.18	/	0.27-0.63	≤0.035	≤0.035	≥325	≥180	≥35

Standard	Grade	Chemical Components(%)					Mechanical Properties
Standard	Grade	c	Si	Mn	P	S	Tensile STrength(Mpa)	Yield STrength(Mpa)	Elongation(%)
ASTM A192	A192	0.06-0.18	≤0.25	0.27-0.63	≤0.035	≤0.035	≥325	≥180	≥35

Standard	Grade	Chemical Components				Tensile STrength(min)	Yield Strength(min)
Standard	Grade	C	Mn	P	S	Mpa	Mpa
API 5L PSL1	A	0.22	0.90	0.030	0.030	331	207
	B	0.28	1.20	0.030	0.030	414	241
	X42	0.28	1.30	0.030	0.030	414	290
	X46	0.28	1.40	0.030	0.030	434	317
	X52	0.28	1.40	0.030	0.030	455	359
	X56	0.28	1.40	0.030	0.030	490	386
	X60	0.28	1.40	0.030	0.030	517	414
	X65	0.28	1.40	0.030	0.030	531	448
	X70	0.28	1.40	0.030	0.030	565	483

Standard	Grade	Chemical Components				Tensile STrength(min)	Yield Strength(min)
Standard	Grade	C	Mn	P	S	Mpa	Mpa
API 5L PSL2	B	0.24	1.20	0.025	0.015	414	241
	X42	0.24	1.30	0.025	0.015	414	290
	X46	0.24	1.40	0.025	0.015	434	317
	X52	0.24	1.40	0.025	0.015	455	359
	X56	0.24	1.40	0.025	0.015	490	386
	X60	0.24	1.40	0.025	0.015	517	414
	X65	0.24	1.40	0.025	0.015	531	448
	X70	0.24	1.40	0.025	0.015	565	483
	X80	0.24	1.40	0.025	0.015	621	552