Corten A Plate, Sheet and Coil Supply
Corten A plate and sheet provide flat material for cut components, panels and fabricated assemblies. Coil provides continuous feedstock for suitable forming or processing equipment. The dimensions and delivery condition are selected for the finished component and its production route.
ASC supplies all three forms. Thickness, width and cut length apply to flat pieces, while coil enquiries also take the receiving equipment and handling dimensions into account.
Corten A for Architectural Metalwork and Components
Architectural applications include facade elements, screens and sculptural features where the surface is intended to weather naturally. The design should allow rainwater to drain and the steel to dry, while protecting nearby finishes from rust run-off.
Fabricators also use weathering flat stock for formed or welded components specified for the material. The steel is supplied as raw material; the finished component’s structural, fire or other performance requirements remain part of its design.
Corten A Dimensions and Delivery Condition
ASC quotes Corten A plates, sheets and coils in the dimensions required for the order. Available thickness and width combinations, cut lengths and coil details are confirmed with the material offer.
Rolling condition and surface condition influence forming and appearance. A fresh mill surface and an established outdoor patina look different, and natural weathering continues after installation.
Corten A Supplier, Exporter and Stockist from India
ASC exports internationally and welcomes Corten A enquiries from architectural fabricators, importers and distributors in the USA, the UK and Europe. We support project purchases and distributor requirements across the three flat-product forms.
We specialize in fast delivery and prioritize urgent material requirements. Product form, dimensions, quantity, availability and destination determine the schedule. Bundles or wooden boxes can be selected for suitable flat pieces; coil packing is agreed for the order.
Request a Corten A Export QuoteCorten A Chemical Composition: Producer Reference
The values below are the published ladle-analysis limits for SSAB COR-TEN® A, hot rolled. Use them as a producer-specific comparison reference. The quotation and mill test certificate should identify the actual producer, material designation and applicable specification for the supplied plate, sheet or coil.
| Element | Published limit or range |
|---|---|
| Carbon, C | 0.12 max |
| Silicon, Si | 0.25–0.75 |
| Manganese, Mn | 0.20–0.50 |
| Phosphorus, P | 0.07–0.15 |
| Sulfur, S | 0.030 max |
| Aluminium, Al | 0.015–0.06 |
| Copper, Cu | 0.25–0.55 |
| Chromium, Cr | 0.50–1.25 |
| Nickel, Ni | 0.65 max |
Source: SSAB COR-TEN® A, hot rolled product data, reviewed 10 November 2026. These limits are not measured results for an ASC shipment or a universal specification for all weathering steel.
The phosphorus range is an important distinction from the lower phosphorus maximum in the cited Corten B reference. Compare the full chemistry and the specified product requirements before accepting a material substitution.
Corten A Mechanical Properties: Hot-Rolled Reference
For the 2.00–12.70 mm thickness range described in the cited SSAB COR-TEN® A, hot rolled product data, the published tensile-property minima are:
| Property | Producer reference |
|---|---|
| Yield strength, ReL | 345 MPa minimum |
| Tensile strength, Rm | 485 MPa minimum |
| Elongation, A50 | 20% minimum |
SSAB states that these mechanical properties are tested transverse to the rolling direction. A50 refers to a 50 mm gauge length. Source: SSAB COR-TEN® A, hot rolled product data. The producer range is not an ASC stocked-size promise.
Confirm the supplied product form and condition: hot-rolled reference values should not be transferred to a different cold-rolled or fabricated product without its own specification. For bending and welding, agree the actual thickness, rolling direction, delivery condition and fabrication requirements with the project team.
Corten A and Related Weathering-Steel Specifications
Corten A is a material description used in weathering-steel supply. ASTM and EN designations identify separate technical requirements and should be compared against the specification for the project.
| Designation | Technical relationship |
|---|---|
| Corten A | Weathering material description; the supplied specification and test records identify the product. |
| S355J0WP / S355J2WP | Phosphorus-alloyed EN 10025-5 flat-product grades with distinct impact qualities. |
| ASTM A242 Type 1 | Separate ASTM high-strength, low-alloy structural-steel requirements. |
| ASTM A606 Type 4 | Separate sheet and strip specification; product form and strength basis matter. |
Similar applications do not establish automatic grade equivalence or branded supply.
Patina, Drainage and Exposure
Weathering develops through exposure to moisture followed by drying. Colour and texture vary with the environment, the surface and time; a patina is not a uniform paint finish.
Persistent wetness, water traps and significant chloride exposure need particular assessment. The installation should drain freely, with run-off kept away from stain-sensitive paving, concrete and other finishes.
Material Documents and Export Supply
Mill test certificates and additional inspection can be requested with Corten A orders. The agreed documents identify the supplied material and relevant test results. Any required surface condition, processing or inspection can be included in the quotation.
Corten A Plate, Sheet and Coil FAQs
What are Corten A plates and sheets used for?
They are used for architectural metalwork and specified fabricated components, including facade elements, screens and exposed features. The component design and environment determine suitability.
Does ASC supply Corten A in coil form?
Yes. ASC supplies Corten A plates, sheets and coils. Coil dimensions and handling requirements are considered with the downstream processing equipment and order.
Is Corten A the same as S355J0WP?
The names should not be treated as automatic equivalents. S355J0WP is a defined EN grade; the supplied specification and test documentation establish whether a material meets the required grade.
What sizes are available for Corten A flat products?
ASC quotes thickness, width and cut length for plates and sheets, and dimensions appropriate to coil supply. Available combinations are confirmed for the requested material and quantity.
Will all Corten A sheets develop the same colour?
No. Natural patina depends on exposure, surface condition and time. Colour and texture can vary across an installation and continue to change after delivery.
Can Corten A be used in constantly wet or coastal conditions?
Those environments need specific assessment. Protective weathering relies on drying, and persistent moisture or significant chloride exposure can make unprotected weathering steel unsuitable.
Can Corten A be formed and welded?
It can be fabricated using procedures appropriate to the actual material, condition and thickness. Bending requirements and exposed-weld performance should be included in the fabrication specification.
Can I request Corten A export packing and test documents?
Yes. Mill test certificates, additional inspection and suitable packing can be requested. ASC prioritizes urgent export requirements, with the schedule agreed for the material, quantity and destination.
Weathering Steel for Architectural Product Enquiries
For drawing-led finished-product requirements, explore our Corten steel planters, Corten steel signages and Corten steel laser cut sheets. Confirm the material grade and fabrication scope for each design.