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Corten steel is created using copper (Cu), chromium (Cr), and nickel (Ni) as the primary alloying elements with less than 0.2% carbon (C) present. It is available in two distinct grades, each of which is structurally and chemically distinct from the other.
orten A is mainly distinguished by additional phosphorous (P), which is generally present in the alloy at concentrations of 0.07 – 0.15%. This imparts enhanced corrosion-resistant properties. Corten B, meanwhile, is not as anti-corrosive but is more suitable for heavy, load-bearing applications.
When to Use Corten A
The self-generating patina of Corten A benefits from the enhanced corrosion-resistant properties of the alloy, enjoying longer-lasting and more robust weatherproof properties. This also enables the use of Corten steel in more harsh environments, such as gas flues and for various components in industrial and hot-working environments.
Corten A is also more suitable for meeting the demands of aesthetic architectural applications. The improved corrosion resistances ensure the attractive, rust-like finish lasts for longer with minimal to no maintenance. In fact, Corten A forms the basis of some of the most famous Corten steel structures around the world.
When to Use Corten B
Corten B is preferable for heavy structural applications due to its enhanced tensile strength. The minimum tensile strength of Corten B strips is approximately 485 N/mm2. This provides significantly improved load-bearing capabilities, which makes Corten B suited for heavyweight fascia and structural elements that are constantly exposed to atmospheric corrosives and weathering conditions.
| Item | Corten Steel A/B Plate |
| Corten A/B Plates Standard | ASTM A588 / ASME SA588 |
| Corten A/B Plates Width | from 750mm to 1500mm |
| Corten A Plates Length | upto 12,000mm |
| Corten B Plates Thickness | from 0.8 mm to 50mm |
| Corten A Plates Type | Weathering Steel / Weather Resistant / Corten Steel |
| Corten B Plates Process | Hot-Rolled (HR) |
| Payment Terms | Paypal, Western Union, T/T (Telegraphic Transfer or Wire Transfer), L/C or Trade Assurance 30% deposit & balance before shipping |
| Free Sample | Yes if we have in stock |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| Corten A Plates Origin & Mills | Japanese, Indian, USA, Korean, European, Russian, Ukraine (Strictly No China) |
| Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
| Marking |
|
| Outside Finish | Finish as per customer Requirements |
| Packing of Corten A Plates | Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
| Specials | Sizes and Specifications other than above can be on request |
| Corten B Plates Application & uses |
|
| Grade | C | Si | Mn | P | S | Cr | Cu | V | Ni |
| COR-TEN A | 0.12 | 0.25-0.75 | 0.20-0.50 | 0.07-0.15 | 0.03 | 0.50-1.25 | 0.25-0.55 | – | 0.65 |
| COR-TEN B | 0.16 | 0.30-0.50 | 0.80-1.25 | 0.03 | 0.03 | 0.40-0.65 | 0.25-0.40 | 0.02-0.10 | 0.40 |
| Grade | Minimum yield point ReH Mpa *) | Tensilee strength Rm MPa | Minimum elongation A (Lo=5.65 √So) % |
| COR-TEN A | 355 | 470-630 | 20 |
| COR-TEN B | 345 | 470-630 | 20 |
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