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DIN 1629 ST37 structure tubing

DIN1629 structure tubing

DIN1629 structure tubing

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℃.

Chemical composition:

Steel GradeType of deoxidization
(R, killed (including semi-killed)) (RR,fully killed)
Chemical Composition, % by mass
SymbolMaterial NumberCPSN¹)Addition of nitrogen fixing elements
(e.g.not less than 0,020% Al total

Mechanical Tubing: ASTM A519:ASTM A519 American Society for Testing Material

Tube for Structures:DIN 1629 :Deutsches Institut fǖr Normung

Size: OD: 10.3mm-711.2mm WT: Hot finish: 0.250″-4.00″ Cold drawn: 0.035″-0.875″ Length: Random Length,Fixed Length, SRL,DRL

Heart treatment: Annealed, Normalized,Stress relieved ,Cold

Uses: For manufacture of pipelines,vessels,equipment,pipe fittings and steel structures.


Mechanical Tubing:1010,1020,1045,1518,4118,4130,4135,4140

Tube for Structures:St37.0, St44.0, St55, St52.0



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