A bright future for turned, ground and polished Hardox® bright steel bars
July 27, 2020 6 min read
Hardox® round bars make an ideal solution in applications that must withstand major stress and wear. They help customers around the world shorten production times and improve the performance of mechanical equipment. Now, high-accuracy Hardox® round bars can be used in even more high-precision, tighter-tolerance applications as turned, ground and polished (TG&P) steel bars, thanks to renowned German machining center WSB.
Engineering components subjected to high stress levels are traditionally hardened by heat treatment. But this only affects the surface of the material and fails to penetrate down to the core. Hardox® round bars are through hardened already when delivered. The hardness is consistent from the surface right down to the core of the material.
Hardox® round bars can be turned to very tight tolerances and remain fully hardened after the turning process. The German turning center Westfälisches Schäl- und Blankstahlzentrum (WSB) has shown that pre-turning of the bars rarely reaches temperature transfers of more than 40°C (104°F) to obtain an average measuring tolerance of an h8 tolerance or h9 tolerance finish. SSAB guarantees the properties of Hardox® steel up to a heat transfer of 250°C (482°F).