Corten™ Steel

Creating Thermally Broken Corten Windows and Doors

Corten™ Steel

Creating Thermally Broken Corten Windows and Doors

Corten steel is a unique and attractive framing material that can be used to create any of the Secco thermally broken windows and doors as well as bespoke architectural metalworks. Secco windows and doors are the only steel window and door systems that are available in cold rolled Corten with thermal breaks.

A steel alloy containing copper, chrome and phosphorous, Corten is recognisable by its warm and antique appearance offering varying shades of orange and brown.

The natural oxidisation process of Corten steel is accelerated with the use of oxidising baths. These create a superficial coating to the corten steel that protects the insulated steel door from further oxidisation (or rusting).

The Corten steel used is ‘true’ Corten manufactured by one specific factory in the US allowing us to the use the trademarked ‘Corten’ name for this weathering steel.

Once the Corten window frames have been cold rolled the Secco two-part thermal break is integrated to create a fully thermally broken steel window made from Corten Steel.

Due to the oxidisation of the external surface of Corten windows and doors no single steel frame will be identical. Each architectural metal window or door will be unique with its own weathering patterns over time creating texture and character to architectural designs.

The name of Corten comes from its high corrosion resistance (Cor) and its high level of tensile strength (ten). The high levels of strength afforded to Corten as a steel window frame allow us to create thermally broken steel windows with minimal sightlines and at large sizes.

Contact Us

Showroom Address
The Courtyard Showroom,
Sky House,
Raans Road,
HP6 6JQ,
United Kingdom

Factory Address
Units 8 & 9 Nazeing Glass Works Estate,
Nazeing New Road,
EN10 6SU,
United Kingdom



+44(0)1494 722 880

IQ Metal are at the forefront of bespoke metal work and steel window fabrication. Our state of the art factory and desire to create beautiful products allow us to work on some of the most prestigious architectural projects in the country. We pride ourselves on customer service so please contact us immediately if you have any queries or questions about any of our luxury steel windows and doors.