Docol Roll is a group of steels which in the first place are designed for applications where roll forming is used as a forming method. The steels are subjected to special heat treatment in the continuous annealing line, giving a material which can be roll formed into narrow radii.
Docol Roll is characterized by:

• High yield strength - minimize unflatness problems of flat areas. The plastic deformation will be confined to the radii.

• High YS/TS ratio - means that stresses in highly formed regions are comparable to the stresses in slightly formed regions. Small differences in residual stresses over the cross section reduce the tendency for bending and twisting of the profile.

• High internal cleanliness - less slag inclusions in the steel make it possible to roll form into narrow radii.

Typical applications for Docol Roll are safety components in cars e.g. side impact beams, bumper reinforcements and seat rails. Also other industries benefit from the advantages offered by Docol Roll. There are already a whole range of profile manufacturers in the furniture industry, construction industry, electrical industry and machinebuilding industry that are using the roll forming process. These industries are also increasingly interested in processes which make it possible to produce thinner profiles that can withstand higher loads.