Open Profiles

Radii: Use inside radii that are larger than material thickness. Radii that are too small or smaller than steel thickness will add strain to the gears and rolls. Tubecon’s sales staff would be able to advise you on what sized radii should be used for your cold formed steel profile.

Symmetrical: If the profile is symmetrical it is easier to avoid the steel section from twisting. If your profile is a-symmetrical Tubecon would still be able to roll-form to your custom steel requirements.

Hole Punching: The diameter of the hole punched in the cold formed open section should preferably be larger than the thickness of the material used for forming the steel open section.  Tubecon is able to punch a variety of holes in your roll formed steel section.

Tolerances: Keep the tolerances realistic. An advantage to custom cold forming is the fact that tight tolerances can be achieved. If, however, these tight tolerances are not needed and asked for it may have a serious cost implication your cold formed section. Tubecon is able to achieve tight tolerances on cold formed steel sections and our sales staff will be able to assist you should you have any enquiries.

Lip and Flange Length: Increasing the length of the lip on open profiles such as Top Hat sections, Zed Profiles and Lip channels ensures that the rolls does not take as much strain during the cold forming process. It is advisable to keep the flanges on U-channels to approximately three times the steel’s thickness.

Large Radii: Large sweeping radii on your custom steel profiles are detrimental to tolerance control. Adding sharper bends to the steel section allows for more roll-forming accuracy.