Corten A Weathering Steel
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 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.
Grades & Equivalents
[table “106” not found /]Mechanical Properties
| 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 |
Chemical Composition of Corten A
| C | 0.15 |
| Si | 0.25/0.75 |
| Mn | 0.20/0.50 |
| P | 0.07/0.15 |
| S | 0.030 |
| Al | 0.015/0.06 |
| Cu | 0.25/0.55 |
| Cr | 0.50/1.25 |
| Ni | 0.65 |