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Welded & size-rolled precision steel tubes

Customer benefits

  • High dimensional accuracy for outside diameters
  • Limited wall thickness tolerances
  • Reduced eccentricity
  • Excellent surface quality
  • Short process chain
  • Good formability
  • Customized heat treatment
Photo of a stack of welded steel tubes

Standard

EN 10305-3

Dimensions

Outside diameter 20 - ​114.3 mm 0.787 - ​4.5''
Wall thickness 1 - ​8 mm 0.039 - ​0.315''
Other dimensions on request

Materials

Steel grade Examples
Structural steels E195, E235, E355, E420, E460, S420MC, S460MC
Quench-and-temper steels Non-alloyed steels: C22, C35, C45, C60
Manganese-boron steels: 22MnB5, 26MnB5, 34MnB5
Other materials on request

Length

The supplied lengths are subject to the following distinctions:

a) Production lengths between 4 and 7 m are supplied, failing agreement to the contrary. The lengths per order item are not permitted to vary by more than 2 m.

b) Fixed lengths with a permissible deviation from the ordered length of ± 500 mm. Up to 10 % of the delivered quantity may deviate from the fixed length, but not by more than 2 m.

c) Cut-to-length. Extremely narrow tolerances can be agreed for the ordered length.

Further details can be found in our General Product Range.

Delivery conditions

Designation Symbol Description
Normalized +N After the last cold forming pass, the tubes are normalized in a controlled atmosphere.
Welded and size-rolled +CR1 Material in this delivery condition is normally not heat treated but can be subjected to final annealing.
Welded and size-rolled +CR2 After welding and size-rolling, no heat treatment is performed.

Our Technical Sales would be happy to help you with its application expertise. You can find further details of our welded precision steel tubes in our General Product Range.


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