On 2 July 2012 , OneSteel formally changed its name to Arrium .
The BHP long products division was divested in 2000 to form OneSteel which is the sole producer of rail and steel sleepers in Australia .
On 2 July 2012 , OneSteel formally changed OneSteel 's name to Arrium .
The BHP long products division was divested in 2000 to form OneSteel which is the sole producer of rail and steel sleepers in Australia .