Corten A Weathering Steel

 Corten A Weathering Steel

1.Weather Resistant Steel

Corten Steel | Corten A | Corten B | S355J0WP | S355J0W | S355J2W

2.Corten A is used in structural and architectural applications. Corten A – a weather resistant steel created by alloying copper, chromium and nickel. In addition to this, Corten A has added phosphorous which makes the material best suited for gas flue applications and for aesthetic facials The material is not recommended in heavy load bearing applications – in this case Corten B or S355J2W should be considered.

3.The top layer of the material reacts with atmospheric elements to form a rust coloured protective layer which not only makes the steel virtually maintenance free but also provides a pleasing and consistent finish.

4.Please refer to the technical specifications below…

Grades & Equivalents

Corten EN 10025-5:2004
Corten A S355 J0WP

5.Chemical Composition

Grade C Si Mn P S Al V Cu Cr Ni
Corten A 0.12 0.25/0.75 0.20/0.50 0.07/0.15 0.030 0.015/0.06 0.25/0.55 0.50/1.25 0.65

Maximum values unless otherwise stated

6.Mechanical Properties

Grade Thickness (mm)

Strip Products

Plate Products Yield Strength
Rel N/mm²
Tensile Strength
Rm N/mm²
A50 %
Corten A 2 – 12 6 – 12 345 485 20

Grade   Thickness (mm)

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

7.For more information about Corten A weather resistant steel or to receive a prices and further specifications, please contact us.