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Seamless Steel Pipe

 
Short Description:
 
  • Keywords（pipe type）:Carbon steel pipe,Seamless Steel Pipe, Seamless Stainless Steel Pipe, Steel Piping
  • Size :OD:13.72-914mm / WT: 1.65-40mm, Length: 0.5mtr-20mtr
  • Standard & Grade :ASTM A106,ASTM A179/A192,ASTM A333,GR.6,ASTM A335,GR.P5,P9,P11-P91,ASME SA179/SA192,Grade A/B/C,API 5L PSL1/PSL2,X42-X80,DIN1629 ST37，ST44，ST52
  • Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
  • Delivery:Within 10-30 days and depends on your order quantity
  • Payment:TT, LC , OA , D/P
  • Packing:Bundle or bulk , seaworthy packing or for the client's requirement
  • Usage:For conveying gas, water and oil either in the oil or natural gas industries

  • Carbon steel pipe,Seamless Steel Pipe, Seamless Stainless Steel Pipe, Steel Piping

  • OD:13.72-914mm / WT: 1.65-40mm, Length: 0.5mtr-20mtr

  • ASTM A106,ASTM A179/A192,ASTM A333,GR.6,ASTM A335,GR.P5,P9,P11-P91,ASME SA179/SA192,Grade A/B/C,API 5L PSL1/PSL2,X42-X80,DIN1629 ST37，ST44，ST52

  • For conveying gas, water and oil either in the oil or natural gas industries

SKU:
Availability:

Description


▇ ▍ Description of Seamless Steel Pipe

Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes include square, oval, triangular, hexagonal, melon seed, star, and finned pipes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different purposes, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Normally, seamless pipes can withstand 20% higher working pressure than welded pipes of the same material grade and size.



▇ ▍ 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 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

&plusmn;0.50mm

≥50

&plusmn;1%

WT



<4

&plusmn;12.5%

≥4～20

+15%, -12.5%

>20

&plusmn;12.5%

Cold drawn







OD




6～10

&plusmn;0.20mm

10～30

&plusmn;0.40mm

30～50

&plusmn;0.45

>50

&plusmn;1%

WT



<1

&plusmn;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 Tubes for Liquid Service

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 Pipe

Sizes: Out Diameter: 73-630mm, Wall Thickness: 6-35mm

Standard: API 5L

Application: For gas, water, transportation in Petroleum and natural gas industries



▇ ▍ Drill Pipe

Sizes: Out Diameter: 2-7/8""-6-5/8"", Wall Thickness: up to 0.813""

Standard: API 5D

Application: For well drilling



▇ ▍ Petroleum Cracking Tube

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

c


Si


Mn


P


S


Mo


Cr


V


Tensile STrength(Mpa)


Yield STrength(Mpa)


Elongation
(%)


ASTM A53


A

≤0.25

/

≤0.95

≤0.05

≤0.06

≤0.15

≤0.40

≤0.08

≥330

≥205

≥29.5

B

≤0.30

/

≤1.2

≤0.05

≤0.06

≤0.15

≤0.40

≤0.08

≥415

≥240

≥29.5



tandard



Grade



Chemical Components(%)

Mechanical Properties

c


Si


Mn


P


S


Mo


Cr


V


Tensile STrength
(Mpa)


Yield STrength
(Mpa)


Elongation(%)


ASTM A106


A

≤0.30

≥0.10

0.29-1.06

≤0.035

≤0.035

≤0.15

≤0.40

≤0.08

≥415

≥240

≥30

B

≤0.35

≥0.10

0.29-1.06

≤0.035

≤0.035

≤0.15

≤0.40

≤0.08

≥485

≥275

≥30



Standard


Grade


Chemical Components(%)

Mechanical Properties

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

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)

C

Mn

P

S

Mpa

Mpa

API 5LPSL1









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

414

X65

0.28

1.4

0.03

0.03

531

448

X70

0.28

1.4

0.03

0.03

565

483



Standard


Grade


Chemical Components

Tensile STrength(min)

Yield Strength(min)

C

Mn

P

S

Mpa

Mpa

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


Dimension


▇ ▍ Dimension of Seamless Steel Pipe

dimension


Equipment


▇ ▍ Equipment

"At present, Hunan Great Steel Pipe Co.,Ltd owns 3 sets of hot -rolled seamless steel pipe production line and 2 sets of hot-expanded seamless steel pipe production line with annual production capacity of 200,000 tons, the size range is from 73mm to 630mm. Its physical and chemical labs cab conduct various physical and chemical tests and experiments for steel pipes, and are equipped with eddy current flaw detectors, leakage fault detection and ultrasonic crack detectors etc. For high, medium and low pressure seamless steel pipes and petroleum casing pipes with a full range of inspection measures, capable to meet various standard test and inspection requirements for steel pipes.


◎ No.1 Production Line:

OD (68-168mm)

◎ No.2 Production Line: φ100 Plugs Mills

OD (89-133mm)

◎ No.3 Production Line: φ273 Accu-Roll Mills

OD (140-340mm)"


equipment


Process


▇ ▍Process of Seamless Steel Pipe


▇ ▍ Hot Rolled



▇ ▍Cold Rolled

cold_drawn


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Hunan Great Steel Pipe Co.,Ltd is a world-class production and service provider of submerged arc straight seam welded pipe as the first subsidiary of Shinestar Group. Hunan Great Steel Pipe Co.,Ltd pays more attention to in the pipeline engineering research areas as a pioneer of China Petroleum Pipeline & Gas Pipeline Science Research Institute.

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