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Steel pipe and tube

Generally speaking, steel pipe is divided into seamlesssteel pipe and welded steel pipe . According to the application, there is many type stainless steel pipe, eg: for pipe line, for pressure vessels, for liquid conveyance and so on. About the welded steel pipe, there are: Longitudinal Submerged Arc Welded Steel Pipe (SAWL steel pipe ), Spiral Submerged Arc Welded Steel Pipe (SSAW steel pipe ), High Frequency Longitudinal Resistance Welded steel pipe (ERW steel pipe ) and square and rectangular steel pipe .

Steel pipe and tube

Steel pipe and tube

Bebon international have a professional sales team in steel pipe. Our advantage is seamless steel pipe for pipe line and for liquid conveyance. The main product in this type steel are API 5L ASTM A53 OR ASTM A106 GRA,GRB, X48,X52. The out Diameter is from 3” to 48”, wall thickness from 10SCH to100SCH. The length are Random length, Fixed Length, SRL, DRL.

Following are specification of seamless steel pipe for line pipe
 

Standard

Steel grade

Chemical composition %

C max

Mn max

P max

S max

Si

V

Nb

Ti

CEpcm max

API 5L  PSL1

L210 or A

0.22

0.90

0.030

0.030

-

-

-

-

0.25

L245 or B

0.28

1.20

0.030

0.030

-

-

-

-

0.25

L290 or X42

0.28

1.30

0.030

0.030

-

-

-

-

0.25

L320 pr X46

0.28

1.40

0.030

0.030

-

-

-

-

0.25

L360 or X52

0.28

1.40

0.030

0.030

-

-

-

-

0.25

L390 or X56

0.28

1.40

0.030

0.030

-

-

-

-

0.25

L415 or X60

0.28

1.40

0.030

0.030

-

-

-

-

0.25

API 5L seamless steel pipe Mechanical properties


Standard

Steel grade

Yiled strength (min)

Tensile strength (min)

API 5LPSL1

L210 or A

210

335

L245 or B

245

415

L290 or X42

290

415

L320 pr X46

320

435

L360 or X52

360

460

L390 or X56

390

490

L415 or X60

415

520

Specification of seamless line for liquid conveyance


Standard

Grade

Chemical composition %

C max

Mn max

P max

S max

Si max

Cu max

Ni max

Mo max

V max

DIN

ST35

0.18

0.35-0.65

0.035

0.035

0.15-0.35

0.25

0.25

-

-

ST45

0.25

0.50-0.80

0.035

0.035

0.15-0.35

0.25

0.25

-

-

ST55

0.33-0.41

0.50-0.80

0.035

0.035

0.15-0.35

0.25

0.25

-

-

ST52

0.20

1.50

0.035

0.035

0.55

0.25

0.25

-

-

ASTM A53

A

0.25

0.95

0.05

0.045

-

0.40

0.40

0.15

0.08

B

0.30

1.20

0.05

0.045

-

0.40

0.40

0.15

0.08

ASTM A106

A

0.25

0.27-0.93

0.035

0.035

0.10

0.40

0.40

0.15

0.08

B

0.30

0.29-1.06

0.035

0.035

0.10

0.40

0.40

0.15

0.08

 API 5L seamless steel pipe Mechanical properties


Standard

Steel grade

Yiled strength (min) Mpa

Tensile strength (min) Mpa

Elongation% min

DIN

ST35

225

345-460

25

ST45

245

440-550

21

ST55

290

540-645

14

ST52

355

490-630

17

ASTM A53

A

205

330

22

B

240

415

20

ASTM A106

A

205

330

35(longitudinal)

B

240

415

30(longitudinal)

 

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