CRA’s finished tubes are manufactured by traditional methods. The material starts off as an ingot or continuous cast billet. It is then hot worked to achieve a sound wrought structure and converted to a hollow tube shell by hot working or trepanning. The choice of which process route to use is dependent upon several variables including quantity and customer delivery need. The tube shells are annealed to obtain the required microstructure, cold pilgered to the achieve finish size and mechanical properties, straightened, non-destructive/destructive/visual testing, and then final cutting/inspection/marking.
For more information on our just-in-time mill manufacturing process, please click here.