For some things there is simply no equivalent, such as roofing and walling made from lightweight, versatile and durable ZINCALUME® Steel. Nothing else has delivered the value, quality and design flexibility of ZINCALUME® Steel.

Roofing and wall cladding made from ZINCALUME® Steel is available in a range of attractive profiles. It is lightweight; versatile; attractive and has excellent corrosion resistance.

The coating on ZINCALUME® Steel comprises of 55% aluminum, 43.5% zinc and 1.5% silicon. It has excellent corrosion performance, forming capabilities and is available in high strength grades.

ZINCALUME® Steel was developed after extensive research into improving the traditional performance of galvanised steel. By blending aluminum with zinc in an alloy coating, researchers discovered a way to greatly enhance corrosion resistance. As a result, our extensive testing programme indicates that ZINCALUME® Steel lifespan is up to four times that of galvanised steel with a Z275 coating in the same environment.

BlueScope Steel’s coating mass control technology is amongst the most advanced in the world. A sophisticated coating mass gauge is linked to a computer in a closed-loop control system ensuring accurate control and consistency of coating mass.

More importantly, it gives you the confidence that the award winning material you’ve chosen for your next project will perform today and for years to come.

It’s a design classic. ZINCALUME® Steel has the unique ability to compliment both traditional and ultra modern architecture. Use it with confidence. It’s flexible and cost effective, so the design choice is yours.

Benefits of BlueScope steel’s ZINCALUME® steel & COLORBOND® pre painted Steel Our Good Name Protects Your Good Name

By harnessing its world leading technological resources, BlueScope Steel is continually looking at ways of improving its ZINCALUME® steel and COLORBOND® pre painted steel products.

So, when you choose ZINCALUME® steel or COLORBOND® pre painted steel, you can be confident that you’re also reaping the benefits of our intensive multi-million dollar research programs, in addition to accessing BlueScope Steel’s local knowledge on the performance demands for steel building products.

The BlueScope steel difference

  • BlueScope steel’s management discipline and experience
  • Over 25 years experience in reducing variation to make our products more reliable and consistent
  • Our proven ethical approach to business conduct and post sales support
  • A supplier who controls or influences the process from iron ore to end product, ensuring product performance and customer satisfaction
  • BlueScope steel roll forms around 500,000 tonnes per annum of ZINCALUME® steel and COLORBOND® steel products in its own factories worldwide, so we really know what our customers need and want.

Decades of Proven Performance

Launched in 1976, after extensive research and development, ZINCALUME® steel continues to set the standards for corrosion resistance and long life. It’s been proven to stand the test of time because it was designed to withstand the rigours of various climatic conditions. In fact, for two decades BlueScope Steel has monitored the product’s performance across a wide range of climatic conditions using exposure test sites and infield inspections.

BlueScope steel has been investing in pre painted steel performance since 1966 with continuous targeted research into paint technology development and real life field performance over a full range of climatic conditions. This has resulted in BlueScope steel owning the I.P for our new Super Polyester pre painted technology,that is proven to look newer for longer.

A Significantly Longer Lifespan

ZINCALUME® steel was developed after extensive research into improving the traditional performance of galvanised steel. By blending aluminium with zinc in an alloy coating, Bethlehem Steel researchers discovered a way to greatly enhance corrosion resistance. BlueScope researchers enhanced the production process. As a result, our extensive testing programme indicates that ZINCALUME® steel’s lifespan is up to four times that of ordinary Z275 galvanised steel.

ZINCALUME® steel technology is used as the steel substrate for COLORBOND® pre painted steel.

BlueScope Steel’s Two Way Protection System

ZINCALUME® steel protects the steel base in two ways. Firstly, the aluminium component of the coating provides a tough physical barrier between the extreme atmospheric conditions and the inner core of steel. Secondly, the zinc in the coating protects the steel at cut edges and scratches. Galvanic action causes zinc compounds to automatically build up at cut edges and around scratches through an electrolytic reaction when water or moisture is present. It slows the rate at which the surrounding coating is consumed around exposed areas. This effect is sometimes referred to as the ‘self healing’ property of coatings containing zinc.

Atmospheric Testing Proves Four Times Longer Life

Atmospheric exposure tests confirm in correct application, the corrosion resistance of ZINCALUME® steel is far superior to that of ordinary zinc coatings, lasting up to four times longer in an identical environment. BlueScope Steel’s intensive research and development process includes real-life testing sites that have been in operation for decades to constantly monitor product performance.

This simple checklist is your guarantee of the superior BlueScope Steel difference.

  • Look for the ZINCALUME® steel or COLORBOND® steel brand mark
  • on the back of every sheet :- 50mm from the edge, repeated approx. every 1,500 – 2,000mm

ZINCALUME® steel made by BlueScope steel G550 AZ150 0.40BMT AS1397 22:15 22-Jun-2010 1

COLORBOND® steel made by BlueScope steel CC004 D43901 22-Jun-2010 3