Product classification
DIN seamless steel pipe (DIN 1629)
Usage: Suitable for manufacturing pipes, containers, equipment, fittings, and steel structures.
- 产品描述
-
Usage: Suitable for manufacturing pipes, containers, equipment, fittings, and steel structures.
DIN seamless steel pipes (DIN 1629)
Standard:
DIN 1629- German Industrial Standard
Usage:
Suitable for manufacturing pipes, containers, equipment, fittings, and steel structures.
Main steel pipe grades produced:
St37.0, St44.0, St52.0
Mechanical performance:
Standard
Brand
Tensile strength(MPa)
Yield strength(MPa)
Elongation(%)
DIN1629
St37.0
350～480
≥235
≥25
St44.0
420～550
≥255
≥21
St52.0
500～650
≥270
≥21
Chemical composition:
Standard
Brand
Chemical composition limits，%
C
Si
Mn
P、S
Cr
DIN1629
St37.0
≤0.17
/
/
≤0.040
/
St44.0
≤0.21
/
/
≤0.040
/
St52.0
≤0.22
≤0.55
≤1.70
≤0.040
/
Remarks：
HR：hot rolled CW：cold worked SR：stress relieved A：annealed N：normalized HF：hot rolling
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