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  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe

SSAW Steel Pipe

Category : Welded steel pipe

Product: SSAW Pipe, SAWH Pipe, Spiral Steel Pipe，Spiral submerged arc welding(SSAW)
Application: Used for Oil/Gas/Water transmission,Construction & Structure Parts
Size:
OD: 219mm-4064mm
WT: 3.2-25mm
LENGTH: 5.8/6/11.8/12m
Pipe Standard:
API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
ASTM A53/A252/A500
EN10219/EN10208/EN10297
JIS G3457

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  • Description
  • Specification
  • Standard
  • Process
  • Packing

Advantages of SSAW steel pipe

(1) The use of steel strips of the same width enables the production of steel pipes of different diameters, in particular the production of large-diameter steel pipes with narrow strip steel.

(2) Under the same pressure conditions, the spiral welds are subjected to a smaller stress than the straight seams, which is 75% to 90% of the straight seam welded pipes, and can therefore withstand greater pressures. Compared with the straight welded pipe with the same outer diameter, under the same pressure, the wall thickness can be reduced by 10% to 25%.

(3) Accurate size, general diameter tolerance is not more than 0.12%, deflection is less than 1/2000, ellipticity is less than 1%, and sizing and straightening processes are generally omitted.

(4) It can be continuously produced. In theory, it can produce infinitely long steel pipes, and the loss of cutting and cutting tails is small, which can increase the metal utilization rate by 6% to 8%.

(5) Compared with the straight seam welded pipe, its operation is flexible and the adjustment of the replacement type is convenient.

(6) The equipment is light and the initial investment is small. It can be made into a trailer-type flow unit and the welded pipe can be produced directly at the construction site where the pipeline is laid.

(7) It is easy to realize mechanization and automation.


ASTM A53

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

API 5L

Specification for Line Pipe(Two levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.)

A252

Standard Specification for Welded and Seamless Steel Pipe Piles

A500

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

BS EN10219-1

Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions

BS EN10219-2

Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties

Chemical Analysis and Mechanical Properties

Standard

Grade

Chemical Composition(max)%

Mechanical Properties(min)

C

Si

Mn

P

S

Tensile Strength(Mpa)

Yield Strength(Mpa)

API 5L PSL1

A

0.22

-

0.90

0.030

0.030

335

335

B

0.26

-

1.20

0.030

0.030

415

415

X42

0.26

-

1.30

0.030

0.030

415

415

X46

0.26

-

1.40

0.030

0.030

435

435

X52

0.26

-

1.40

0.030

0.030

460

460

X56

0.26

-

1.40

0.030

0.030

490

490

X60

0.26

-

1.40

0.030

0.030

520

520

X65

0.26

-

1.45

0.030

0.030

535

535

X70

0.26

-

1.65

0.030

0.030

570

570

API 5L PSL2

B

0.22

0.45

1.20

0.025

0.015

415

415

X42

0.22

0.45

1.30

0.025

0.015

415

415

X46

0.22

0.45

1.40

0.025

0.015

435

435

X52

0.22

0.45

1.40

0.025

0.015

460

460

X56

0.22

0.45

1.40

0.025

0.015

490

490

X60

0.12

0.45

1.60

0.025

0.015

520

520

X65

0.12

0.45

1.60

0.025

0.015

535

535

X70

0.12

0.45

1.70

0.025

0.015

570

570

X80

0.12

0.45

1.85

0.025

0.015

625

625

ASTM A53

A

0.25

0.10

0.95

0.050

0.045

330

330

B

0.30

0.10

1.20

0.050

0.045

415

415

ASTM A252

1

-

-

-

0.050

-

345

345

2

-

-

-

0.050

-

414

414

3

-

-

-

0.050

-

455

455

EN10217-1

P195TR1

0.13

0.35

0.70

0.025

0.020

320

320

P195TR2

0.13

0.35

0.70

0.025

0.020

320

320

P235TR1

0.16

0.35

1.20

0.025

0.020

360

360

P235TR2

0.16

0.35

1.20

0.025

0.020

360

360

P265TR1

0.20

0.40

1.40

0.025

0.020

410

410

P265TR2

0.20

0.40

1.40

0.025

0.020

410

410

EN10217-2

P195GH

0.13

0.35

0.70

0.025

0.020

320

320

P235GH

0.16

0.35

1.20

0.025

0.020

360

360

P265GH

0.20

0.40

1.40

0.025

0.020

410

410

EN10217-5

P235GH

0.16

0.35

1.20

0.025

0.020

360

360

P265GH

0.20

0.40

1.40

0.025

0.020

410

410

EN10219-1

S235JRH

0.17

-

1.40

0.040

0.040

360

360

S275JOH

0.20

-

1.50

0.035

0.035

410

410

S275J2H

0.20

-

1.50

0.030

0.030

410

410

S355JOH

0.22

0.55

1.60

0.035

0.035

470

470

S355J2H

0.22

0.55

1.60

0.030

0.030

470

470

S355K2H

0.22

0.55

1.60

0.030

0.030

470

470


ASTM A53

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

API 5L

Specification for Line Pipe(Two levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.)

A252

Standard Specification for Welded and Seamless Steel Pipe Piles

A500

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

BS EN10219-1

Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions

BS EN10219-2

Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties

Chemical Analysis and Mechanical Properties

Standard

Grade

Chemical Composition(max)%

Mechanical Properties(min)

C

Si

Mn

P

S

Tensile Strength(Mpa)

Yield Strength(Mpa)

API 5L PSL1

A

0.22

-

0.90

0.030

0.030

335

335

B

0.26

-

1.20

0.030

0.030

415

415

X42

0.26

-

1.30

0.030

0.030

415

415

X46

0.26

-

1.40

0.030

0.030

435

435

X52

0.26

-

1.40

0.030

0.030

460

460

X56

0.26

-

1.40

0.030

0.030

490

490

X60

0.26

-

1.40

0.030

0.030

520

520

X65

0.26

-

1.45

0.030

0.030

535

535

X70

0.26

-

1.65

0.030

0.030

570

570

API 5L PSL2

B

0.22

0.45

1.20

0.025

0.015

415

415

X42

0.22

0.45

1.30

0.025

0.015

415

415

X46

0.22

0.45

1.40

0.025

0.015

435

435

X52

0.22

0.45

1.40

0.025

0.015

460

460

X56

0.22

0.45

1.40

0.025

0.015

490

490

X60

0.12

0.45

1.60

0.025

0.015

520

520

X65

0.12

0.45

1.60

0.025

0.015

535

535

X70

0.12

0.45

1.70

0.025

0.015

570

570

X80

0.12

0.45

1.85

0.025

0.015

625

625

ASTM A53

A

0.25

0.10

0.95

0.050

0.045

330

330

B

0.30

0.10

1.20

0.050

0.045

415

415

ASTM A252

1

-

-

-

0.050

-

345

345

2

-

-

-

0.050

-

414

414

3

-

-

-

0.050

-

455

455

EN10217-1

P195TR1

0.13

0.35

0.70

0.025

0.020

320

320

P195TR2

0.13

0.35

0.70

0.025

0.020

320

320

P235TR1

0.16

0.35

1.20

0.025

0.020

360

360

P235TR2

0.16

0.35

1.20

0.025

0.020

360

360

P265TR1

0.20

0.40

1.40

0.025

0.020

410

410

P265TR2

0.20

0.40

1.40

0.025

0.020

410

410

EN10217-2

P195GH

0.13

0.35

0.70

0.025

0.020

320

320

P235GH

0.16

0.35

1.20

0.025

0.020

360

360

P265GH

0.20

0.40

1.40

0.025

0.020

410

410

EN10217-5

P235GH

0.16

0.35

1.20

0.025

0.020

360

360

P265GH

0.20

0.40

1.40

0.025

0.020

410

410

EN10219-1

S235JRH

0.17

-

1.40

0.040

0.040

360

360

S275JOH

0.20

-

1.50

0.035

0.035

410

410

S275J2H

0.20

-

1.50

0.030

0.030

410

410

S355JOH

0.22

0.55

1.60

0.035

0.035

470

470

S355J2H

0.22

0.55

1.60

0.030

0.030

470

470

S355K2H

0.22

0.55

1.60

0.030

0.030

470

470

Steel coils→Ray material test → Delivery straightening → Plate cutting and welding  → circle shear edge milling  → Forming  → inside auto-welding  → Outside auto-welding  → Online ultrasonic inspection  → Fixed length cutting  → Visual inspection for outside seam  → Visusl inspection for inside seam  → X-ray inspection for welding seam  → Even end and end bevel  → Hydrostatic test  → Ultrasonic inspection → Final product inspection  → Marking  → Store up

● 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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