Seam­less, hot-rolled steel tubes - fini­shed tubes

Find a contact person

Description

Hot-rolled finished tubes are high-quality semi-finished products manufactured through hot rolling and subsequently brought to tight dimensional and geometric tolerances through precise finishing processes (adjustment).

Hot rolling ensures good formability and a homogeneous microstructure, while adjustment guarantees compliance with specific customer requirements regarding diameter, straightness, surface quality, and length.

Your benefits

  • Excellent dimensional accuracy for outer diameters and wall thicknesses
  • Very good surface finish
  • Wide variety of steel grades in various supply conditions
  • Wide range of lengths

Dimensions

Outside diameter
from to
17.2 mm 133 mm
0.677 inch 5.236 inch
Wall thickness
from to
2 mm 20 mm
0.079 inch 0.787 inch
Other dimensions available upon request
Detailed Dimensions Table

Further information

Lengths

We supply hot-rolled tubes in lengths ranging from 5 m to 22.5 m (16.4 ft to 73.8 ft).

Standards & materials

We produce our steel tubes in accordance with internationally recognized standards and use different, carefully selected materials depending on the application. You will find various standards and the materials specified therein under the following link. Further standards can be agreed on request. Additionally, properties and materials outside the usual standards can be specified and agreed. Our Technical Customer Support will support you in all matters relating to material selection and technology.

Learn more about standards & materials
Delivery conditions
Designation Symbol Description
As rolled +AR After heating to the austenitic range (above the Ac3-temperature), the tubes are formed without a subsequent heat treatment.
Soft annealed +A The tubes are subjected to annealing slightly below the Ac1-temperature.
Normalized rolled +N The tubes are rolled in a temperature range that generates the delivery condition +N and is equivalent to the normalized condition.
Swipe Icon
Tests
Picture of a manual inspection of the tube dimensions

We conduct tests in accordance with the requirements of the relevant standard.

Additional tests can be agreed upon.

Learn more about tests
Mannesmann Precision Tubes and Mannesmannröhren-Werk
Production
process
Mannesmann Precision Tubes and Mannesmannröhren-Werk
CERTIFICATES &
APPROVALS
Mannesmann Precision Tubes and Mannesmannröhren-Werk (Europe)
Material-
declarations

Individual

Advice

Our sales team and technical experts are ready to assist. We look forward to working with you!

Sales Hot-rolled tubes

Request your customized quote

Find a contact person
Technical Customer Support

For your technical inquiries

Find a contact person