Welded & size-rolled precision steel tubes
- High dimensional accuracy for outside diameters
- Limited wall thickness tolerances
- Low eccentricity
- Good formability
- Customized heat treatment
|Outside diameter||20 - 114.3 mm||0.787 - 4.5''|
|Wall thickness||1 - 8 mm||0.039 - 0.315''|
|Other dimensions on request|
|Structural steels||E195, E235, E355, E420, E460, S420MC, S460MC|
Non-alloyed steels: C22, C35, C45, C60|
Manganese-boron steels: 22MnB5, 26MnB5, 34MnB5
|Other materials on request|
The supplied lengths are subject to the following distinctions:
a) Production lengths between 4 and 7 m are supplied - unless otherwise agreed. 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.
|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.|