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Seamless Steel Pipe

We are committed to providing one-stop service for steel pipe products to customers around the world.

s355 pipe,spiral welded pipe manufacturers,bs1387 pipe

Seamless Steel Pipe

We are committed to providing one-stop service for steel pipe products to customers around the world.

seamless pipe, carbon pipe,stainless pipe,octg pipe manufacturers
BackYou are in :  Home  >  Products  >  Seamless Steel Pipe  >  Seamless Line Pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe
  • s355 pipe,spiral welded pipe manufacturers,bs1387 pipe

Seamless Line Pipe

Category : Seamless Steel Pipe

Type: Oil-conveying pipe; Gas conveying pipe; Water conveying pipe; Sewage pipe
Application: Oil, Gas, Water, Mineral slurry, and other fluids
Size:OD: 1/8 – 30 inch (10.3-762mm), WT: 0.049”- 2.5” (1.24- 63.5mm)
Standard & Grade: A192, A335, ST52, S355, A334, Q235, G3454, A179, Q235b, Q345e, ST 45, SA106b, A519, EN10210, A56, A790, S275, C45, ST35, A160, A106b, X42, X52, X56, X60, X65, X70, PSL1, PSL2, API5L.GRA,B,C

  • Description
  • Specification
  • Standard
  • Process
  • Packing

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.

Seamless Pipe (and tubing) is made by extruding a steel block or by drilling a solid steel bar. Next, the extrusion or the drilled steel bar is cold drawn through a dye to achieve the diameter and thickness needed. Because this process can cause mechanical hardening, sometimes the material is annealed and straightened as a final process. 

Seamless Pipe & Tubing is subdivided as:

Cold Drawn Seamless, or CDS, exhibits precise tolerances and a good surface finish.

Hot Finished Seamless, or HFS, has less critical tolerances and somewhat scaly finish and is not as strong as CDS.

For Drawn over Mandrel, or DOM tubing, the first stages of manufacturing are identical to ones used to make electric resistance welded tubing, but in the finishing stages the entire flash weld is taken out and the tube is cold drawn over a mandrel. A mandrel is a round object against which material can be forged or shaped. The cold drawn process provides the tube with better dimensional tolerances, improved surface finish and the strongest weld strength achievable.

1. Production technology: Hot-rolled and cold drawn

2. Executive standards: API5L , ASME B36.10, ASTM A106/A53

3.Specification range:

OD: OD: 1/8 – 30 inch (10.3-762mm), WT: 0.049”- 2.5” (1.24- 63.5mm)

WT: SCH10-SCHXXS

4. Materials: GrB, Q345B, X42-70, ST44, ST52 etc.

5. Testing: Eddy current/ Hydrostatic/Ultrasonic/ Intergranular Corrosion etc.

6. Packing: Bundles, seaworthy packing, or as required by customers.

7. Application:

API seamless pipe are widely used for petroleum, power generation, natural gas, coal gas, water and some solid materials, also ship-building, chemical fertilizer equipment etc.


OD/mm

WT/mm

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

21.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

73

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

88.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

114.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

168.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

219.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

273.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

323.3

 

 

 

 

 

 

 

 

 

 

 

355.6

 

 

 

 

 

 

 

 

 

406.4

 

 

 

 

 

 

457.2

 

 

 

 

 

 

508

 

 

 

 

 

 

609.6

 

 

 

 

 

 

 

660.4

 

 

 

 

 

 

 

711.2

 

 

 

 

 

 

 

 

762

 

 

 

 

 

 

 

 


Chemical Analysis

Standard 

Type of pipe

Class

Grade 

Si 

Mn 

Nb 

Ti 

max 

max 

max 

max 

max 

max 

max 

max 

API SPEC 5L

SMLS

PLS1 

L245 B L290 X42 L320 X46 L360 X52 L390 X56 L415 X60 L450 X65 L485 X70 L245N BN 

0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.24 

0.4

1.20 1.30 1.40 1.40 1.40 1.40 1.40 1.40 1.20 

0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.025 

0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.015 

---------

---------

0.04

PLS2 

L290N X42N 

0.24

0.4

1.2

0.025

0.015

0.06

0.05

0.04

L320N X46N 

0.24

0.4

1.4

0.025

0.015

0.07

0.05

0.04

L360N X52N 

0.24

0.45

1.4

0.025

0.015

0.1

0.05

0.04

L390N X56N 

0.24

0.45

1.4

0.025

0.015

0.1

0.05

0.04

L415N X60N 

0.24

0.45

1.4

0.025

0.015

0.1

0.05

0.04

WELD

PLS1 

L245 B 

0.26

-

1.2

-

0.03

0.03

-

-

L290 X42 

0.26

-

1.3

-

0.03

0.03

-

-

L320 X46 

0.26

-

1.4

-

0.03

0.03

-

-

L360 X52 

0.26

-

1.4

-

0.03

0.03

-

-

L390 X56 

0.26

-

1.4

-

0.03

0.03

-

-

L415 X60 

0.26

-

1.4

-

0.03

0.03

-

-

L450 X65 

0.26

-

1.45

-

0.03

0.03

-

-

L485 X70 

0.26

-

1.65

-

0.03

0.03

-

-

PLS2 

 L245M BM 

0.22

0.45

1.2

0.025

0.015

0.05

0.05

0.04

L290M X42M

0.22

0.45

1.3

0.025

0.015

0.05

0.05

0.04

L320M X46M 

0.22

0.45

1.3

0.025

0.015

0.05

0.05

0.04

L360M X52M 

0.22

0.45

1.4

0.025

0.015

-

-

-

L390M X56M 

0.22

0.45

1.4

0.025

0.015

-

-

-

L415M X60M 

0.12

0.45

1.6

0.025

0.015

-

-

-

L450M X65M 

0.12

0.45

1.6

0.025

0.015

-

-

-

L485M X70M 

0.12

0.45

1.7

0.025

0.015

-

-

-

L555M X80M 

0.12

0.45

1.85

0.025

0.015

-

-

-

Mechanical Properities

Standard

Class

Grade


Yield strength not less than (MPa)

Tensile strength (MPa)

Elongation(%)

Y.S/T.S

API SPEC 5L ISO 3183

PLS1

L245B

min

245

415

b

-

L290X42

min

290

415

b

-

L320X46

min

320

435

b

-

L360X52

min

360

460

b

-

L390X56

min

390

490

b

-

L415X60

min

415

520

b

-

L450X60

min

450

535

b

-

L485X70

min

485

570

b

-

PLS2

L245N BN

min

245

415

b

-

L245M BM

max

450

760

b

0.93

L290NX42N

min

290

415

b

-

L290MX42M

max

495

760

b

0.93

L320NX46N

min

320

435

b

-

L320MX46M

max

525

760

b

0.93

L360NX52N

min

360

460

b

-

L360MX52M

max

530

760

b

0.93

L390NX56N

min

390

490

b

-

L390MX56M

max

545

760

b

0.93

L415NX60N

min

415

520

b

-

L415MX60M

max

565

760

b

0.93

L450MX65M

min

450

535

b

-

max

600

760

b

0.93

L485MX70M

min

485

570

b

-

max

635

760

b

0.93

L555MX80M

min

555

625

b

-

max

705

825

b

0.93

Toughness

Standard

Grade

Transverse minimum impact of Pipe body

Transverse minimum impact of  weld (J)

 (J) 

D=508

508mm

762mm

914mm

1219mm

D<1422mm

D=1422mm

API SPEC 5L

=L415X60

27(20)

27(20)

40(30)

40(30)

40(30)

27(20)

40(30)

>L415X60

27(20)

27(20)

40(30)

40(30)

54(40)

27(20)

40(30)

=L415X65

>L450X65

27(20)

27(20)

40(30)

40(30)

54(40)

27(20)

40(30)

=L485X70

>L485X70

=L485X80

40(30)

40(30)

40(30)

40(30)

54(40)

27(20)

40(30)


Seamless line pipe

For its different manufacturing process, there’re hot rolling steel tube and cold drawn seamless steel tube. Agico sells seamless line pipe available in different sizes, weights and grades, customer can choose from black line pipe and galvanized line pipe. from 2-3/8" to 24", steel grade A, B, X42 - X80.

Welded line pipe

Oil and gas welded line pipe for intra-field is used to transport crude oil and natural gas from the field to oil refineries and storage facilities, as well as to shipment points and distribution nodes.

Packing

Package of carbon steel seamless pipe

Plastic caps plugged at the two sides of pipe ends

Should be avoided by the steel strapping and transport damage

Bundled signs should be uniform and consistent

The same bundle(batch) of steel pipe should be came from the same furnace.

The steel pipe has the same furnace number, the same steel grade, the same specifications.

  

  

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