Seamless Steel Pipe

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Seamless Steel Pipe

Product:	Seamless Pipe,Seamless Carbon Steel Pipe,Carbon Steel Seamless Pipe
Application:	For converying gas, water & oil for Fluids Transmission
Size:	OD: 10.3-1219.2mm
	WT: 1.65-60mm
	LENGTH: 5.8/6/11.8/12m
Pipe Standard:	API 5L
	ASTM A106
	JIS G3454,G3455,G3456
	DIN1629/EN10216-1
	EN 10208

Introduction
What is a seamless steel pipe?
A seamless steel pipe is a circular pipe having a hollow section and no seams around it. The seamless steel pipe is made of carbon steel, alloy steel, stainless steel ingot or solid tube blank, and then is made by hot rolling, cold rolling or cold drawing. Seamless pipes are considered superior to welded pipes as they are built using monolithic steel billets, with intrinsic mechanical strength, without seam welds.

Seamless steel pipe, as the name suggests, is a pipe without a seam or a weld-joint. Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids.

The production of our seamless pipes is tightly regulated and all of the pipes we stock have been fully tested to international standards to ensure we only supply the highest quality products.

Product Details:

Size
Maximum diameter: 48" (1219.2mm) minimum diameter: 1/8" (10.3mm)
Maximum thickness: 60mm mininmum thickness: 1.65mm

Standard

ASTM A53 Gr.B

Black and hot-dipped zinc-coated steel pipes welded and seamless

ASTM A106 Gr.B

Seamless carbon steel for high temperature service

ASTM SA179

Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes

ASTM SA192

Seamless carbon steel boiler tubes for high pressure

ASTM SA210

Seamless Medium-carbon boiler and superheater tubes

ASTM A213

Seamless alloy-steel boiler, superheater, and heat-exchanger tubes

ASTM A333 GR.6

seamless and welded carbon and alloy steel pipe intended for use at low temperatures.

ASTM A335 P9,P11,T22,T91

Seamless ferritic alloy-steel pipe for high-temperature service

ASTM A336

Alloy steel forgings for pressure and high-temperature parts

ASTM SA519 4140/4130

Seamless carbon for mechanical tubing

API Spec 5CT J55/K55/N80/L80/P110/K55

Seamless steel pipe for casing

API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70

Seamless steel pipe for line pipe

DIN 17175

Seamless steel tube for elevated temperture

DN2391

Cold drawn seamless prevision pipe

DIN 1629

Seamless circular unalloyed steel tubes subject to special requirements

Chemical Composition and Mechanical Properties

standard	Grade	Chemical Components (%)					Mechanical Properties
standard	Grade	C	Si	Mn	P	S	Tensile STrength(Mpa)	Yield STrength(Mpa)
ASTM A53	A	≤0.25	-	≤0.95	≤0.05	≤0.06	≥330	≥205
ASTM A53	B	≤0.30	-	≤1.2	≤0.05	≤0.06	≥415	≥240
ASTM A106	A	≤0.30	≥0.10	0.29-1.06	≤0.035	≤0.035	≥415	≥240
ASTM A106	B	≤0.35	≥0.10	0.29-1.06	≤0.035	≤0.035	≥485	≥275
ASTM A179	A179	0.06-0.18	-	0.27-0.63	≤0.035	≤0.035	≥325	≥180
ASTM A192	A192	0.06-0.18	≤0.25	0.27-0.63	≤0.035	≤0.035	≥325	≥180
API 5L PSL1	A	0.22	-	0.9	0.03	0.03	≥331	≥207
	B	0.28	-	1.2	0.03	0.03	≥414	≥241
	X42	0.28	-	1.3	0.03	0.03	≥414	≥290
	X46	0.28	-	1.4	0.03	0.03	≥434	≥317
	X52	0.28	-	1.4	0.03	0.03	≥455	≥359
	X56	0.28	-	1.4	0.03	0.03	≥490	≥386
	X60	0.28	-	1.4	0.03	0.03	≥517	≥448
	X65	0.28	-	1.4	0.03	0.03	≥531	≥448
	X70	0.28	-	1.4	0.03	0.03	≥565	≥483
API 5L PSL2	B	0.24	-	1.2	0.025	0.015	≥414	≥241
	X42	0.24	-	1.3	0.025	0.015	≥414	≥290
	X46	0.24	-	1.4	0.025	0.015	≥434	≥317
	X52	0.24	-	1.4	0.025	0.015	≥455	≥359
	X56	0.24	-	1.4	0.025	0.015	≥490	≥386
	X60	0.24	-	1.4	0.025	0.015	≥517	≥414
	X65	0.24	-	1.4	0.025	0.015	≥531	≥448
	X70	0.24	-	1.4	0.025	0.015	≥565	≥483
	X80	0.24	-	1.4	0.025	0.015	≥621	≥552

Tolerances

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

Application

Types	Application
Structure Purposes	General structure and mechanical
Liquid Services	Petroleum, gas and other fluids conveying
Low and Medium Pressure Boiler Tube	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 Pipe	Geological drilling
Furnace tubes, heat exchangers tubes	Furnace tubes, heat exchangers

Chilled water pipe	Steam/condensate pipe	Heat exchanger pipe	Marine/offshore pipe	Dredging pipe	Industrial pipe
Oil and gas pipe	Fire fighting pipe	Construction/structure pipe	Irrigation pipe	Drain/sewage pipe	Boiler tube

Our factory

Packing

1- Plastic caps plugged at the two sides of pipe ends
2- Should be avoided by the steel strapping and transport damage
3- Bundled signs should be uniform and consistent
4- The same bundle(batch) of steel pipe should be came from the same furnace.
5- The steel pipe has the same furnace number, the same steel grade, the same specifications.

Process

Equipment

If you have any inquiries and questions, please contact United Steel Industry Co.,Ltd

at any time. Thanks in advance. Welcome! Email :Sales@united-steel.com

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