Innovative steel
for a better engineered future

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Seamless tube and hollow bar

Our tube products are characterized by uniform properties, close tolerances and small machining allowances. Ovako’s tubes and hollow bars are used when there are stringent demands on the material, such as within the rolling bearing, automotive, hydraulic and general engineering industries.

Our tube products can be provided in all Ovako steel grades. We also supply hot-rolled peeled tubes, as well as cold-rolled or drawn centerless ground tubes. Tubes can also be cut according to customer requirements.

Standard items and stock program

As a service to our customers we have standard tube program offering smaller order quantities and shorter lead time than what we require on a standard production batch. Ovako has two such standard programs; both have the tubes stocked at our mill as well as at some of our sales companies and appointed distributors.

Bearing steel program

This program covers roughly 350 tube sizes from OD 30 to 250 mm.

Ovako 280 hollow bar program

This program covers carbon hollow bar in grade Ovako 280 based on the standard EN 10294. We keep roughly 350 dimensions in stock from OD 50 to 243 mm. Read more »

Both the bearing steel tube and the Ovako 280 hollow bar program are based on the tight machining allowances. For each item we show a guaranteed finished turned size for either inner or outer chucking.

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Heat treatment:

Our tubes can be supplied in the following heat-treated conditions or combinations thereof:

  • Normalized
  • Soft annealed
  • Isothermal anneaed
  • Stress relief annealed
  • Isothermal annealed
  • Quenched and tempered
  • Controlled cooling for case hardening steels

More information