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
Steel Grade: ASTM Corten A
Standard: ASTM
Specification:
Thickness: 6-420mm
Width: 100-4200mm
Length: 100-4200mm
Hot Forming: Normally it is carried out in a temperature range of 800 °C to 1050 °C. If it is required in different temperature, it is advisable to carry out a normalizing treatment at the end.
Flame Cutting: Normally it is carried out with the usual methods. In general, no preheat is required, but working on plates with a temperature of less than 10 °C shall be avoided.
Drawing: In spite of its excellent mechanical Properties, Corten A can be moderately drawn.
Welding: Corten A plate can be easily welded using common procedures used for mild steel plate (spot, TIG, MIG, MAG, electrode etc.). It is however advisable to avoid tempering in the heated zone and therefore to limit the ratio of linear energy to the thickness. Considering the chemical composition, it can be stated that Corten A steel is not subject to cold cracking. Welded structures fabricated with corten a steel does not normally need thermal stress relief treatment.
Refercence Standards: Corten A steel plate to be following standards: NFA35-502-E36W, ASTMA242 and A588, EN10155-Fe510A1K1/DD2K1, S.E.W087.
ASTM Corten A Chemical Composition:
|
Grade |
C Max |
SI |
Mn |
S Max |
Cr |
Ni |
Cu |
Nb |
Nb+V=Ti |
P |
|
Corten A |
0.12 |
0.25-0.75 |
0.20-0.50 |
0.07-0.15 |
0.50-1.25 |
0.65 |
0.25-0.55 |
0.25-0.55 |
- |
0.07-0.15 |
ASTM Corten A Mechanical Properties
|
Grade |
Permissible yield point
ratio |
Yield Strength
MPa(min) |
Tensile Strength
MPa |
Elongation
% (min) |
Bend |
|
Corten A |
- |
345 |
485 |
20 |
1t |
ASTM Corten A steel grade is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.The steel grade CortenA is according to ASTM standard which with the yield strength of 355MPa and the tensile strength of 470-630MPa.Corten-A steel was first used in buildings in 1958 because it has anti-corrosion properties. Then Corten-A especially in China and Japan was widely used for bridges, trains, cars, trucks and industrial facilities and so on.
