Corten A is 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 facias The material is not recommended in heavy load bearing applications – in this case Corten B or S355J2W should be considered.
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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.
The technical specifications of Corten A are outlined below.
Corten A - Grades and Equivalents
The grades and equivalents of Corten A are provided in the table below.
Corten |
EN 10025-5:2004
|
Corten A |
S355 J0WP
|
Corten A - Chemical Composition
The chemical composition of Corten A is given in the following table.
Element |
% by mass
|
Element |
% by mass
|
C |
0.12
|
Al |
0.015/0.06
|
Si |
0.25/0.75
|
V |
–
|
Mn |
0.20/0.50
|
Cu |
0.25/0.55
|
P |
0.07/0.15
|
Cr |
0.50/1.25
|
S |
0.030
|
Ni |
0.65
|
Maximum values unless otherwise stated
Corten A - Mechanical Properties
The mechanical properties of Corten A are outlined in the following table.
Grade |
Thickness (mm)
Strip Products
|
Plate Products
|
Yield Strength
Rel N/mm²
Minimum
|
Tensile Strength
Rm N/mm²
Minimum
|
Elongation
A50 %
Minimum
|
Corten A |
2 – 12
|
6 – 12
|
345
|
485
|
20
|
(Please note: the technical information above is for guidance only – for exact specifications please check with Masteel)
![](https://d12oja0ew7x0i8.cloudfront.net/images/Article_Images/ImageForArticle_5227_44889004101863434371.png)
This information has been sourced, reviewed and adapted from materials provided by Masteel UK Ltd.
For more information on this source, please visit Masteel UK Ltd