About Us

We Super Steel Manufacturing Co.,Ltd(SMC) are amongst the top manufacturers and suppliers for the seamless steel pipe, welded steel pipe, OCTG products and fittings  from China. We have been manufacturing and supplying these products to the industry since 1993, and received repeat orders and appreciation from our valued customers.

Products

Workshop

High quality piping products from approved manufacturers.
In order to continuously improve our offerings to our clients, we have consistently improved and upgraded our manufacturing facility and can hence offer material with stringent requirements.

Projects

Over the years, Super Steel Manufacturing Co.,Ltd(SMC) has developed an enviable reputation for project management for the Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical and other heavy industries.
The many years of experience that we have means that there is always someone who has the ability to carry a project forward.

Services

Super Steel Manufacturing Co.,Ltd(SMC) adheres to the principle of being customer-oriented, focusing on customers and meeting their requirements. We respond quickly and customize products and solutions for end users.

News

Always up to date. In this column you can find the steel pipe related articles, including industry trends, product standards and materials, and some technical guidelines.

Seamless Steel Pipe

API 5L Seamless Line Pipe, API 5L Seamless Pipe, Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe
API 5L Seamless Line Pipe, API 5L Seamless Pipe, Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe

API 5L Seamless Pipe

PRODUCT:LINE PIPE, API LINE PIPE, SEAMLESS LINE PIPE, CARBON STEEL LINE PIPE
SIZE:
OD: 73-630MM
WT: 6-35MM
LENGTH: 5.8/6/11.8/12M
PIPE STANDARD:API 5L  PSL1/PSL2    GR.A,GR.B,X42,X46,X52,X56,X60,X65,X70

API 5L  PSL1/PSL2    L210,L245,L290,L320,L360,L390,L415,L450,L485

APPLICATION:OR TRANSPORTATION IN PETROLEUM AND NATURAL GAS INDUSTRIES

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  • API 5L Seamless Line Pipe, API 5L Seamless Pipe, Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe
  • API 5L Seamless Line Pipe, API 5L Seamless Pipe, Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe
  • API 5L Seamless Line Pipe, API 5L Seamless Pipe, Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe
  • API 5L Seamless Line Pipe, API 5L Seamless Pipe, Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe
  • Description
  • Specification
  • Specification
  • Process
  • Packing

Description

Introduction:
Pipe Type:Line Pipe, Api Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe
Application: For Transportation In Petroleum And Natural Gas Industries

PRODUCT:LINE PIPE, API LINE PIPE, SEAMLESS LINE PIPE, CARBON STEEL LINE PIPE
SIZE:
OD: 73-630MM
WT: 6-35MM

LENGTH: 5.8/6/11.8/12M

PIPE STANDARD:API 5L  PSL1/PSL2    GR.A,GR.B,X42,X46,X52,X56,X60,X65,X70

API 5L  PSL1/PSL2    L210,L245,L290,L320,L360,L390,L415,L450,L485


Coating

Fbe – Awwa C210, Awwa213, As/N2s 3862, Can/Csa Z245.20 And Etc.

3lpe – Din30670, Nfa49-710, Iso21809 Ips-G-Tp-335 And Etc.

3lpp – Din30678, Gs-Gr-Cor 221, Iso21809 And Etc.

Application
· Oil And Gas Pipelines
· Water And Sewage Pipelines
· Mineral Slurry Pipelines

Advantages Of Api 5l Line Pipe
Best For Transportation Systems In The Natural Gas And Petroleum Industries.
Suitable For Conveying Gas, Water, And Oil.
Resistant High Mechanical Stresses.
Resistant To High Pressure & Temperature.



Specification

Specification

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








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%

Specification

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 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%

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


Process

Packing

we offer different modes of transport depending on the customer's destination: rail transport and ship transport，etc.the shipping mark shall consist of: trade mark, seller's name, product name, applicable standards,specifications, package no., contract no., heat no., production date, weighing method, net weight, gross weight, consignee and protection symbols, etc.

Specification

Specification

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








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%

Specification

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 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%

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


Process

Packing

we offer different modes of transport depending on the customer's destination: rail transport and ship transport，etc.the shipping mark shall consist of: trade mark, seller's name, product name, applicable standards,specifications, package no., contract no., heat no., production date, weighing method, net weight, gross weight, consignee and protection symbols, etc.

If you have any inquiries and questions, please contact us at any time. Thanks in advance. Welcome!
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