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DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.
The main products of steel grade is DIN1629 ST37.0, DIN1629 ST44.0, DIN1629 ST52.0
This part of EN1026 specifies the technical delivery conditions in two test categories for seamless tubes for circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.
DIN Standard Steel Pipes Specification
- Seamless pipes Specifications and Execution Standard
- DIN2605 EN10253 BS1965 steel pipes size dimensions
- Description of DIN EN 10216 and 10217
- Description of DIN EN 10210 and DIN EN 10219
- The Effect of Welding on High Carbon Steel
Type:seamless steel pipe:1/2″-24″; ERW steel pipe:1/2″-48″
Condition on delivery:
|BK||No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.|
|BKW||After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.|
|Annealed||GBK||After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.|
|Normalized||NBK||The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.|