Steel is an incredibly versatile material.  The alloy content, thermal treatment and mechanical processes used to create the steel can be customized to deliver tubing that is tailored to meet the customers' process and application needs.

Hot Rolled

Hot rolled tubing has a surface finish comparable to hot rolled bars. Hot rolled surface conditions include as-rolled or thermally treated finishes (i.e. annealed, normalized or quench and tempered). There will be a light mill oxide on both the outside and inside surfaces.

Hot rolled tubing can be produced only to outside diameter and wall dimensions.  Tubes of this type are properly inspected and surface-conditioned, and are generally intended for further processing, such as machining by the customer.

Cold Pilgered

In cold pilgering, also known as Rotorolling, a tube is cold reduced by working it between a rocking set of dies on the outside and a hardened mandrel on the inside.  It is similar to cold drawing in that the cross sectional area of the tube is reduced while its length and strength level are each increased.  Reduction rates of up to 50 percent are achieved in a single pass, far exceeding cold drawing.

The cold pilger process yields a tube with superior surface finish, tight dimensional tolerances, and excellent machineability due to the high compressive residual stresses.  The significant level of cold-work results in greatly enhanced mechanical properties.

Rough Turned

Our rough turn process removes all surface defects and decarburization from the outside of the two.  This results in a finish approaching 125 RMS or better, while the inside surface retains a hot roll finish. 

Turned tubing is used extensively in automatic screw machines as the raw material for ball and roller bearing races.  It's also used for manufacturing products that can take advantage of the close outside diameter tolerance or clean outside surface.