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.
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)
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