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SEAMLESS STEEL PIPE

Longtaidi is one of the world's leading manufacturer of seamless steel pipes .

 

Pipe Type: Seamless Pipe, Seamless Carbon Steel Pipe, Structure Pipe , Fluid Pipe, Boiler Pipe,
Seamless Steel Pipe , Line Pipe,Carbon Steel Seamless Pipe.

Application: For High Temperature Fluids Transmission (oil, gas, water, steam etc.)

Specification: OD: 1/8'' ~ 48'' (10.3 ~ 1219mm)

WT: SCH 10 ~ 160, SCH STD, SCH XS, SCH XXS

LENGTH: Fixed Length (5.8/6/11.8/12mtr), SRL, DRL
Standard & Grade: ASTM A106, Grade A/B/C API 5L, API 5CT, ASTM A106/A53, ASTM A519,
JIS G 3441, JIS G3444, JIS G3445 DIN 2391, EN10305, EN10210, ASME SA106,
SA192, SA210, SA213, SA335, DIN17175, ASTM A179…

Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating

Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

                  Seamless Steel Pipe & Tube, Carbon Seamless Steel Pipe,SMLS Pipe & Tube

 

 

Seamless Steel Pipe

Classfication of carbon seamless steel pipe:

Types

Application

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 Pipe

Geological drilling

Petroleum Cracking Tubes

Furnace tubes, heat exchangers

Carbon Steel Seamless Pipe Chemical Composition and Mechanical Properties

Standard

Grade

Chemical Composition (%)

Mechanical Properties

ASTM A53

C

Si

Mn

P

S

Tensile STrength(Mpa)

Yield STrength(Mpa)

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

-

0.90

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

≥448

X65

0.28

-

1.40

0.030

0.030

≥531

≥448

X70

0.28

-

1.40

0.030

0.030

≥565

≥483

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

     
Carbon Steel Seamless Pipe Chemical Composition and Mechanical Properties

Standard

Chemical components

Mechanical property

C

Si

Mn

P

S

Cu

Ni

Mo

Cr

V

Tensile strength (Mpa)

Yield strength (Mpa)

Elongation (%)

ASTM A53

≤0.30

/

≤1.2

≤0.05

≤0.06

≤0.04

≤0.40

≤0.15

≤0.04

≤0.08

≥415

≥240

≥29.5

ASTM A106

≤0.30

≤0.10

0.29-1.06

≤0.035

≤0.035

≤0.04

≤0.40

≤0.15

≤0.04

≤0.08

≥415

≥240

≥30

ASTM A179

0.06-0.18

≤0.25

0.27-0.63

≤0.035

≤0.035

/

/

/

/

/

≥325

≥180

≥35

ASTM 192

0.06-0.18

≤0.25

0.27-0.63

≤0.035

≤0.035

/

/

/

/

/

≥325

≥180

≥35

Carbon Steel Seamless Pipe Tolerance

Pipe types

Pipe Szie(mm)

Tolerances

Hot rolled

OD

All

±1% (min ±0.50mm)

WT

All

+15%, -12.5%

Cold drawn

OD

6~10

±0.20mm

10~30

±0.40mm

30~50

±0.45mm

>50

±1%

WT

≤1

±0.15mm

>1~3

+15% -10%

>3

+12.5% -10%

Carbon Steel Seamless Pipe End

Plain End

Wall Thickness less than 0.5 inch, including SCH STD & SCH XS

Plain End (Square Cut)

Wall Thickness over 0.5 inch, including SCH XXS

Beveled End

Wall Thickness less than 0.5 inch, including SCH STD & SCH XS

Couplings

Outside Diameter equal or less than 2''

Thread Protection

Outside Diameter over 4 inch

 

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