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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

C

Si

Mn

P

S

Tensile STrength(Mpa)

Yield STrength(Mpa)

ASTM A53

A

≤0.25

-

≤0.95

≤0.05

≤0.06

≥330

≥205

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

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 420

+15%, -12.5%

WT>20

±12.5%

Cold drawn

OD 610

±0.20mm

OD 1030

±0.40mm

OD 3050

±0.45

OD>50

±1%

WT≤1

±0.15mm

WT 13

+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.



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