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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.

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

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