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℃.
|Steel Grade||Type of deoxidization
(R, killed (including semi-killed)) (RR,fully killed)
|Chemical Composition, % by mass|
|Symbol||Material Number||C||P||S||N¹)||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.
Tube for Structures:St37.0, St44.0, St55, St52.0