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Carbon Seamless Steel Pipe
Carbon Seamless Steel Pipe,Ball Valve,Butterfly Valves,Gate valve
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Carbon Seamless Steel Pipe

Product

SMLS Pipe, CS Pipe

Application

In Petroleum, Aerospace, Chemical, Power, Boilers, Military Industry

Pipe Standard

ASTM A106/A53/A500/ASME SA106/SA53/DIN1629/JIS G3444/G3445/G3452

Size

OD: 1/8'' - 36''


WT: SCH 10, 30, 40, 60, 80, 120, 140, 160, XS, XXS, STD


Length: Single Random, Double Random, Cut Length

  • Description
  • Specification
  • Standard
  • Process
  • Packing

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.


Standard: ASTM A106/A53/A500/ASME SA106/SA53/DIN1629/JIS G3444/G3445/G3452

Certificate: ISO 9001, ISO 14001, ISO 45001, CE 

Out Diameter: 1/8 - 36inch (10.3-914.4mm)

Wall Thickness: 1.25 - 50mm

Length: Random Length, Fixed Length, SRL, DRL

Steel Grade:

ASTM A53/ASTM A106: GR A, GR B, GR CASME 

ASME A500: GR.A, GR.B, GR.C, GR.D

Test Required:

Chemical Analysis, Mechanical Test, Visusal Inspection , Tension Test, Dimension Check, Bend Test , Flattenting Test, Impact Test, DWT Test, NDT Test, Hydrostatic Test, Hardness Test

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 A500

A

≤0.26

-

≤1.35

≤0.035

≤0.035

≥310

≥230


B

≤0.30

-

≤1.40

≤0.045

≤0.045

≥400

≥290


C

≤0.23

-

≤1.35

≤0.035

≤0.035

≥425

≥315


D

≤0.27

-

≤1.40

≤0.045

≤0.045

≥400

≥250


Tolerances of carbon seamless steel pipe

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%

NOMINAL  PIPE  SIZE

OD

(mm)

 

NOMINAL WALL THICKNESS

 

DN

NB(inch)

ASME

SCH10

SCH20

SCH30

STD

SCH40

SCH60

XS

SCH80

SCH100

SCH120

SCH140

SCH160

XXS

15

1/2"

21.3

2.11


2.41

2.77

2.77


3.73

3.73




4.78

7.47

20

3/4"

26.7

2.11


2.41

2.87

2.87


3.91

3.91




5.56

7.82

25

1"

33.4

2.77


2.9

3.38

3.38


4.55

4.55




6.35

9.09

32

1.1/4"

42.2

2.77


2.97

3.56

3.56


4.85

4.85




6.35

9.7

40

1.1/2"

48.3

2.77


3.18

3.68

3.68


5.08

5.08




7.14

10.15

50

2"

60.3

2.77


3.18

3.91

3.91


5.54

5.54




8.74

11.07

65

2.1/2"

73

3.05


4.78

5.16

5.16


7.01

7.01




9.53

14.02

80

3"

88.9

3.05


4.78

5.49

5.49


7.62

7.62




11.13

15.25

90

3.1/2"

101.6

3.05


4.78

5.74

5.74


8.08

8.08






100

4"

114.3

3.05


4.78

6.02

6.02


8.56

8.56


11.13


13.49

17.12

125

5"

141.3

3.4



6.55

6.55


9.53

9.53


12.7


15.88

19.05

150

6"

168.3

3.4



7.11

7.11


10.97

10.97


14.27


18.26

21.95

200

8"

219.1

3.76

6.35

7.04

8.18

8.18

10.31

12.7

12.7

15.09

18.26

20.62

23.01

22.23

250

10"

273

4.19

6.35

7.8

9.27

9.27

12.7

12.7

15.09

18.26

21.44

25.4

28.58

25.4

300

12"

323.8

4.57

6.35

8.38

9.53

10.31

14.27

12.7

17.48

21.44

25.4

28.58

33.32

25.4

350

14"

355.6

6.35

7.92

9.53

9.53

11.13

15.09

12.7

19.05

23.83

27.79

31.75

35.71


400

16"

406.4

6.35

7.92

9.53

9.53

12.7

16.66

12.7

21.44

26.19

30.96

36.53

40.19


450

18"

457.2

6.35

7.92

11.13

9.53

14.27

19.05

12.7

23.83

39.36

34.93

39.67

45.24


500

20"

508

6.35

9.53

12.7

9.53

15.09

20.62

12.7

26.19

32.54

38.1

44.45

50.01


550

22"

558.8

6.35

9.53

12.7

9.53


22.23

12.7

28.58

34.93

41.28

47.63

53.98


600

24"

609.6

6.35

9.53

14.27

9.53

17.48

24.61

12.7

30.96

38.89

46.02

52.37

59.54


650

26"

660.4

7.92

12.7


9.53



12.7







700

28"

711.2

7.92

12.7

15.88

9.53



12.7







750

30"

762

7.92

12.7

15.88

9.53



12.7







800

32"

812.8

7.92

12.7

15.88

9.53

17.48


12.7







850

34"

863.6

7.92

12.7

15.88

9.53

17.48


12.7







900

36"

914.4

7.92

12.7

15.88

9.53

19.05


12.7









ASTM A53

Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A106

Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service

ASTM A500

Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

Hot Rolling Seamless Steel Line Pipe Manufacturing / Production processes

Rolled Round Billets – Examination – Cut Off – Heating – Piercing – Elongation – Slight Tension Reducing – Straightening – Corp End Cutting Off – Visual Inspection – NDT – Hydrostatic Test – Ends Procession – Product Inspection – Painting and Marking – Packing – Warehousing


Cold Drawn (Rolled) seamless steel pipe manufacturing process

Mother pipe (Normally for hot rolled pipe) – Inspection – Annealing – Ends Treatment (Hitting and Drilling hole) – Pickling – Grinding – Phosphorization (Annoit) – Cold Drawn (Rolled) – Degreasing and Cleaning – Heat treatment (Solution treatment) – Straightening – Hydrostatic test – Painting and Marking – Warehousing

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