Despite their very high level of hardness, RAEX^® – DILLIDUR^® – QUARD^®   400 / 450 / 500 steels are suitable for bending. However, it is recommended that the bending process is performed slowly and perpendicularly to the milling direction. Deburring of pieces and pre-heating of oxy-fuel cut edges is also useful (120 ÷ 200°C). Provided machines delivering the appropriate power and suitable tools are used, additional mechanical engineering work, such as boring, countersinking, etc. may be performed.

If oxy-fuel cutting is to be performed on pieces thicker than 25 mm, the area to be cut must be slightly preheated in advance.

These being hardened steels, the following requirements must be complied with:
– only use suitable weld materials
– remove any moisture
– choose an adequate thermal input.