COR-TEN® Steel. A Natural Beauty

A natural beauty from the very beginning. Long lasting attraction, year after year, with practically zero need for maintenance. Use COR-TEN® steel to make your mark as an architect, and let it contribute to sustainability at the same time. Genuine COR-TEN® steel is produced by SSAB under a license from US Steel Corporation.

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Forsyning Helsingør

Case study

Helsingør Power Plant

Helsingør Power Plant´s new headquarters comprises the Cube and Operating Facilities, two buildings that will stand adjacent to the power plant with its distinctive architecture. The Cube is a rusty-red building clad in COR-TEN® steel that corresponds with the colors of the surroundings.
Audenasa Headquarters

Audenasa Headquarters

Two concrete slabs wrap the steel lattice COR-TEN® Steel to the South and reused tire blocks to the North. The image of the set aims to establish close links to infrastructures linked to movement and transport …
Amsterdam Klaprozenweg

Amsterdam Klaprozenweg

The owners of this home on Klaprozenweg in Amsterdam-Noord wanted a robust, durable and affordable home. Inspired by the industrial character of the environment …
Hackney Backhous

Hackney Backhouse

A new family home for a constrained back garden site in a Hackney Conservation Area. The house has a refined materials palette of ochre brickwork, anodised aluminium windows, COR-TEN® steel …
Broadcasting Place

Broadcasting Place

Broadcasting Place is a striking mixed-use development close to Leeds city centre. A public/private partnership for property group Downing and Leeds Beckett University …
Design Museum Holon

Design Museum Holon

Israel’s first museum dedicated to Design – harbours the dynamic play between a series of internal, box-like gallery spaces on different levels, and six ribbons of COR-TEN® steel ...
Layered Gallery

Layered Gallery

The private gallery for an art collector provides a space to view and sort parts of the collection prior to hanging in the rest of the house. Conceived as part of the garden …
COR-TEN® - Sittelandskap

Sittelandskap

Akershuskaia is a meeting place for people of all ages. The new outdoor furniture provides a space for children’s play, socializing and relaxation with views to the sea and Oslo’s maritime surroundings ...
Studio Furillen

Studio Furillen

At Studio Furillen, there are studio and gallery spaces, areas for photography and film recording, material rooms, a library, writing places, a kitchen, separate kitchenettes …
Kemenes Volcano Visitor Centre

Kemenes Volcano Visitor Centre

We wanted to capture the true substance of the location. According to our concept, the raw materials, the homogeneous grey of the concrete, the lava inspired colour of the COR-TEN® steel, and the flue-like arrangement …

Inspiring you, inspiring others

Showcase Cor-Ten projekt

Showcase your projects here

We are always looking for the most interesting and creative architecture to be showcased by SSAB. The only condition is that COR-TEN® steel is an essential part of the project. Our team of editors will review your submission, and if approved, it will be featured.
Designers guide

Design guide

Naturally, you want to get the best aesthetics from COR-TEN® steel. When designing with COR-TEN® steel there are a few things to consider. Follow these simple rules and your architecture will leave a lasting impression.

Designing uniqueness

COR-TEN® steel is a versatile material that gives you the freedom to truly express your vision as an architect. Bend it. Perforate it. Mix it. There are endless opportunities to bring a natural beauty to the environment it is located in. COR-TEN® steel is now becoming the trend setting material in all aspects of architecture. Buildings that use COR-TEN® steel have been rewarded many times over for innovative and sustainable design.
Profiling COR-TEN® steel sheet

Profiling COR-TEN® steel sheet

With COR-TEN® steel it’s easy to create a dynamic façade apperarance. The shape of the profiling is up the architec’s desire, allowing daylight to play with the shadows for an ever-changing look, with artificial lights adding life during dark hours.
Perforated COR-TEN® steel panels

Perforated COR-TEN® steel panels

COR-TEN® weathering steel sheets can be perforated in any way you like. Create your design using round, square, rectangular holes, customized texts, logos and images. Anything is possible. Backlighting your creation will accentuate your design even further.
Mixing COR-TEN® steel

Mixing COR-TEN® steel

COR-TEN® steel lends itself perfectly to mixing with other building materials. Contrast the deep brown patina of COR-TEN® in any shape you like with concrete, bricks or wood for a unique and eye-cathing façade.
Apply nature
Patina formation process

Apply nature

At first, the steel begins to rust in the same fashion as any other carbon steel, when exposed to wet and dry weather conditions. However, as time passes, the rust layer transforms into a dense patina layer, sealing-off the steel surface, resisting further corrosion. The color changes from fresh, newly developed orange-brown, to light and eventually dark brown.

The speed of change and the final color of the steel depend on the atmospheric conditions of a site and the surrounding air quality. Sulfur dense atmospheres will speed up the oxidation process and result in a darker patina. Frequent cycles of wet and dry weather conditions will also speed up oxidation.

Working with a natural beauty

Vitually no maintenance

Virtually no maintenance

With its anti-corrosive properties, COR-TEN® steel minimizes the need for maintenance and corrosion-prevention treatment, contributing significantly to low maintenance costs throughout the product lifecycle. Making COR-TEN® steel the environmentally friendly choice.
Genuine

Genuine

Genuine COR-TEN® steel is produced by SSAB under a license from US Steel Corporation. Using genuine COR-TEN® steel ensures that appearence, longevity and mechanical properties of the material fulfills your expectations, as well as the expectations of your clients.

Delivered as you like it

COR-TEN® weathering steel grades are available in suitable dimensions and thicknesses for use on buildings. Building contractors can simply source processing services such as cutting to shape, profiling and perforating, to receive components ready to install. If you like more information about the opportunities to integrate COR-TEN® weathering steel in your design, you are welcome to contact SSAB sales to find your COR-TEN® steel supplier
Full range of sizes and shapes

Full range of sizes and shapes

The COR-TEN® steel portfolio includes a wide range of grades with mechanical properties and dimensional tolerances.
Tech support

Tech support

Get the answers you need from our experienced tech support team on how to use the COR-TEN® material.
Download center

Download center

Search and download COR-TEN® steel brochures, certificates and other materials.

Working side by side with a natural beauty

SSAB weathering - corrosion resistant steel

SSAB Weathering

The SSAB Weathering steel portfolio is the perfect choice for structures and bridges, heavy transport and processing industries. SSAB Weathering steel includes a wide range of heavy plate, hot and cold rolled strip, tube and sections with yield strength from 345 to 960 Mpa.
GreenCoat - colorful steel

GreenCoat®

GreenCoat® is the brand for innovative, sustainable color coated steel solutions for roofs, façades and rainwater systems. Widely used in sustainable architecture, GreenCoat® products offer an extensive range of colors and coatings with Swedish rapeseed oil.
Guidelines for COR-TEN®

GUIDELINES

Trademark use for COR-TEN®

The trademark guidelines for COR-TEN® are available for download. To protect the rights of the trademark owner, these guidelines should be followed whenever the COR-TEN® brand is used.

COR-TEN® should always be used as a separate trademark with the ® sign and be written in all capital letters, with a dash and without spaces. Common errors include Cor-Ten, CORTEN, COR TEN and Cortensteel.