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ASTM Corten-A steel is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance. Description:ASTM Corten-A steel is according to ASTM standard which with the yield strength of 355MPa and the tensile strength of 470-630MPa.
ASTM Corten-A steel is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.
Description:ASTM Corten-A steel 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.
Application:ASTM Corten-A steel is a strip mill product. ASTM CortenA is mainly used for the manufacture of container, rolling stock, oil rigs, harbor construction, oil platforms and other structural parts containing hydrogen sulfide corrosive media in petrochemical equipment.The chemical composition of COR-TEN A has been designed to provide a relative resistance against atmospheric corrosion, in particular for urban environments. It can therefore be used even without painting; in this case a thin layer of stable oxides will be formed, thus preventing further corrosion inside. ASTM Corten-A steel 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 facials.Corten A is not recommended in heavy load bearing applications – in this case Corten B or S355J2W should be considered. The top layer of Corten A 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 mechanical characteristics and the resistance against atmospheric corrosion make this steel the best product for the fabrication of agricultural vehicles and railway wagons, bridges, water pipes, fans, chimneys and boilers and outdoor sculptures.
ASTM Corten-A steel Chemical:
Grades | C max | Si | Mn. | P | S max | Cr | Ni | Cu | Nb+V+Ti |
CortenA | 0.12 | 0.25-0.75 | 0.20-0.50 | 0.07- 0.15 | 0.030 | 0.50-1.25 | 0.65 | 0.25-0.55 | - |
In order to obtain fine grain structure a sufficient amount of nitrogen absorbing elements is added (e.g. ≥0.02% Al).
ASTM Corten-A steel Mechanical:At room temperature for plates ≥3mm in thickness (transverse test specimans, according to EN 10002). Requirements to hot rolled plates ≤3mm in thickness according to EN 10025-5.
Grade | Permissible yield point ratio | Yield Strength MPa(min) | Tensile Strength MPa | Elongation % (min) | Bend |
Corten A | - | 355 | 470-630 | 20 | 1t |
1 Mpa = 1N/mm2 These characteristics are guaranteed in the longitudinal direction; increases by approximately 20 N/mm2 in the transverse direction. In case of cold rolled material the yield point is min. 310 Mpa and the tensile strength min. 445 MPa. Furthermore cold rolled sheets ≤3mm in thickness made of steel grade COR-TEN A-F for increased demand to the cold formability is available.
KUNFENG STEEL can offer ASTM Corten-A steel. We registers hundreds of thousands of tons of ex-stock source on our spot trade flatform. If required, we can also offer chemical analysis, mechanical properties and other detailed information.
