Huaqiang

DIN 1629

DIN 1629 Seamless Steel pipe Of Non Alloys Steels are made of unalloyed steels, it's main grades are St 37.0, St44.0, St52.0, Din 1629 seamless steel pipes application fields are: chemical plant, vessels, pipework construction and for common mechanical engineering purposes. Normally DIN 1629 standard are manufactured with no limiting working pressure values. Working temperature is limited below 300℃.

The main products of steel / steel grade:

DIN1629 ST37.0

DIN1629 ST44.0

DIN1629 ST52.0

Size range(mm):

Out diameter:10-324mm

Wall Tickness:1-30mm

Length:14000mm max

Note:

DN — Nominal Diameter

NPS —Nominal Pipe Size

Chemical Compositions

Grade

C

Si

Mn

P

S

ST37.0

≤0.17

/

/

≤0.040

≤0.040

ST44.0

≤0.21

/

/

≤0.040

≤0.040

ST52.0

≤0.22

≤0.55

≤1.70

≤0.040

≤0.035

Mechanical Properties

Grade

Yield Strength
(Mpa)

Tensile Strength
(Mpa)

Elongation
(%)L

Elongation
(%)T

ST37.0

≥235

350-480

25

23

ST44.0

≥275

420-550

21

19

ST52.0

≥355

500-650

21

19
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