New Zealand Steel

To Print: Click here or Select File and then Print from your browser's menu.

This page was printed from on 19 Apr 2014

Bluescope Steel stock price

New Zealand Steel Limited introduced ZINCALUME®, zinc/aluminium alloy coated steel, to the New Zealand market in 1994. ZINCALUME® coated steel represents a significant improvement on the traditional zinc coated galvanised steel. Since its introduction, ZINCALUME® coated steel has been widely accepted and has the major share of the steel building products market.

The ZINCALUME® coated steel has been formulated to give a significantly longer service life than a galvanised coating. This is of particular value in New Zealand where the prevailing winds carry corrosive salt laden air many kilometres inland.

The ZINCALUME® steel coating combines the corrosion protection of aluminium with the sacrificial protection of zinc, giving the advantages of both metals. The resulting alloy coating enhances corrosion resistance, making it ideal for such applications as roofing and cladding.

ZINCALUME® coated steel is produced by a continuous hot dip process similar to that used to manufacture galvanised steel. While both ZINCALUME® steel and galvanised steel products have a steel base, galvanised steel has a coating of 100% zinc, whereas ZINCALUME® coated steel has an alloy coating of 43.5% zinc, 55% aluminium and 1.5% silicon. ZINCALUME® coated steel conforms to AS1397:2001.

Read about the use of ZINCALUME® steel in the following Case Studies:

Back to School With ZINCALUME® steel
The good looks and cost efficiency of ZINCALUME® steel has proved a winning combination on a newly completed Auckland college.


New School May be a Link to the Future
One of Auckland’s newest schools may be a sign of things to come with its extensive use of steel cladding.