DuraGalPlus is a smooth coating of zinc applied to both sides of Austube Mills steel products for superior protection.

Hot-dipped galvanized steel strip is formed and welded on-site. Through years of experience, Austube Mills has mastered the technique for reinstating the zinc coating along the weld line with zinc hot spraying, using a special wire, which seals the weld area to a level that offers the same protection as the original galvanized coating and blends with the original coating. It is capable of withstanding the toughest tests.

Our tubular steel products are made to withstand their intended environments. We are confident of this because we sought independent assessment of its DuraGalPlus range as part of its commitment to manufacture and supply products of the highest quality. These tests showed that DuraGalPlus, galvanized on the inside and the outside, delivers superior protection in the field for light galvanized hollow sections.


  • Section 3 of AS/NZS 4792 – Hot-dip galvanized (zinc) coatings on ferrous hollow sections, applied by a continuous or a specialized process
  • Minimum Average Coating Mass: 100 g/m2 each side