Seamless Steel Pipe, SMLS Steel Pipe - Threeway Steel Co.,Ltd
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SMLS Steel Pipe DIN1629
  • SMLS Steel Pipe DIN1629

SMLS Steel Pipe DIN1629

DN1629 ST44 / 47 / 52 Steel Pipe, CS Round Pipe
Standard: DIN1629 Deutsche Industrie Normen
Uses: For manufacture of pipelines,vessels,equipment,pipe fittings and steel structures.

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DN1629 ST44 / 47 / 52 Steel Pipe, CS Round Pipe

Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116

Phone:0086-731-8873-9521  

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SMLS Steel Pipe, Seamless Steel Pipe

DN1629 ST44 / 47 / 52 Steel Pipe, CS Round Pipe

Chemical Composition(%):

 Grade

C

Si

Mn

P

S

Cr

Ni

Cu

St37.0

≤0.17

0.17-0.37

0.35-0.65

≤0.025

≤0.020

≤0.25

≤0.25

≤0.25

St44.0

≤0.21

0.17-0.37

0.50-0.80

≤0.025

≤0.020

≤0.25

≤0.25

≤0.25

St55

0.33-0.41

0.17-0.37

0.50-0.80

≤0.025

≤0.020

≤0.25

≤0.25

≤0.25

St52.0

≤0.22

≤0.55

≤1.60

≤0.025

≤0.020

≤0.25

≤0.25

≤0.25

Mechanical Properties:

Grade


Tensile strength
(MPa)



Yield strength (Mpa)
not less than



Elongation (%)
not less than


≤16mm

>16mm


St37.0

350-480

235

225

25

St44.0

420-550

275

265

21

St55

540-645

295

285

17

St52.0

500-650

355

345

21


SMLS Steel Pipe, Seamless Steel Pipe

Available Dimension Range:
Cold Finished Seamless Steel Tube and Pipe:Φ8~114.3*1~20mm
Hot-rolled Steel Tube and Pipe:Φ114.3~720*5~120mm


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 √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √