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Ruukki COR-TEN® weather resistant steel

COR-TEN® is a weather resistant steel produced by Ruukki Steel Mills in Finland, COR-TEN® is a registered trademark.

Cladding Australia Pty Ltd. Are the Australian distributors of Ruukki COR-TEN®. We stock 2.5 tonne coils 0.55mm, 0.70mm and 1.5mm thick x 1200mm wide and in flat sheets 3mm thick x 1200mm wide x 2500mm, 3000mm and 3500mm long. The product is available through a network of stockists /national roof and wall cladding specialists – see below.

We can supply COR-TEN® in other thicknesses and widths up to 40mm x 1800mm wide, minimum order quantity 15 tonnes, lead times 14-16 weeks.

Weather resistance – How it works

The atmospheric corrosion resistance of weather – resistant steel is based on the chemical composition of the steel.
Under the influence of weather conditions a dense protective patina layer composed of corrosion products is formed on the surface of the COR-TEN® steel. The protective layer (Patina) develops in approximately 18 months, at first, the protective layer is reddish brown but gains a darker hue with time.

The “Run off” (leaching) of COR-TEN® cladding will slow down and eventually stop entirely, However our cladding specialists will suggest the inclusion a small gutter in the cladding detailing to take the “run off”, or the installation of on-porous materials below the cladding.

Ruukki COR-TEN® is a registered trademark any other weathered steel product marketed as “COR-TEN” is an imitation.

For further information on this unique cladding / construction product please call Cladding Australia Pty Ltd. Tel: 03 94197191 or one of our distributors.


Drill Core Library Adelaide
Cladding Australia supplied the COR-TEN 2000m2 ( orange part) supplied and installed by our SA distributor Cladding and Roofing Pty Ltd….read more



Cladding Australia Suppliers Pty Ltd specialised in advanced materials and technology for the building industry and providing smart constructions solutions for corporate customers in Australasia.

Our mission is to provide our customers with quality and cost effective engineering and profiles.

We strive to lead the way in the industry and pride ourselves with our excellent reputation for reliability, quality and personalised customer service.

As part of our services, Cladding Australia Suppliers Pty Ltd:

For more than two decades, Cladding Australia Suppliers Pty Ltd has been recognised as one the leading forces in providing solutions to the building industry around the world. Our mandate is the commitment to provide our customers with uncompromising integrity and exceptional customer service.

Cladding Australia Suppliers Pty Ltd import high quality materials from the leading companies in Europe . Our products portfolio included materials such as Corten, Aluminium, Zinc, Fire rated Insulated roof and wall panels, Specialized “Blast Proof” Panel systems and more…

Our network of distributors will be happy to provide you with free advise and help you with your next project.

Cladding Profiles

COR-TEN® – Cladding profiles

Our network of distributors will be able to advise on the range of cladding profiles available.


COR-TEN® Coils and flat sheet.


In addition to above COR-TEN® is available up to 40mm thick and widths up to 1800mm Minimum order 15 tonnes. Estimated delivery time 14 weeks .

Special Orders

COR-TEN® – Special orders.

For heavy construction projects.

Ruukki COR-TEN® Is available up to 40mm thick and 1800mm wide, minimum order quantity of 15 tonnes , delivery 14 weeks.


Engineering Action Pty Ltd

399 Hobart Road, Youngstown TAS 7249
Tel: 03 63436343
Mobile: 0419 537 943
Contact: Chris Pratt.

ZC Technical Pty Ltd

1A/ 7 Lathe Street, Virginia. Queensland 4014
Telephone: 07 3265 2785


Adelaide / South Australia: – Cladding and Roofing Pty Ltd

Address: 163 William St, Beverly SA 5009
PO Box 161, Welland SA 5007
Telephone: 08 8347 3999


Perth . N.W. Australia : DenMac Industries Pty Ltd

ADDRESS: 44 Crocker Drive
Malaga WA 6090
Telephone: 08 9249 2800


Melbourne . Victoria: Architectural Cladding Pty Ltd

Address: 1-3 Commercial Road
3168 Notting Hill VIC Australia
Telephone: +61 3 95610896


Melbourne. Country Victoria: GSM/Architectural Panel Systems

Address: 6 Kambouris Court,
Corio. Victoria 3214
Telephone: 03 5274 9600
Contact: Jamie Cockerell


West Australian distributor: Carter Roofing Pty Ltd

Address: 2/17 Edison Rise, Malaga 6065
Telephone: 08 94081984
Contact: Nigel Carte


ACT and southern NSW: Architectural Panel Systems

Address: 6 Kambouris Court, Corio. Victoria 3214
Telephone: 03 5274 9600
Website: www.apsaus.com.au


26 East View Crs., Bentleigh East VIC 3165

Jon Lee

Office: 03-94197191
Mobile: 0415 926 057

Judy Bowyer

Office: 03-94197191

We are looking to appoint experienced cladding and roofing companies as distributors in the following areas:


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Contact Info
26 East View Crs., Bentleigh East VIC 3165
Jon Lee
email: jon.lee@claddingau.com.au
Office: 03 9945 4423
Mobile: 0415 926 057

Judy Bowyer
Office: 03 9945 4423