CortenA Weathering Steel
CortenA is a type of American Standard labeled Cu-P series steel, which belongs to low alloy high-strength atmospheric corrosion-resistant structural steel, and is called weathering steel in China.
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Corten A Steel Sheets Products Details
The atmospheric corrosion resistance of Corten-A is due to the formation of a dense layer of rust on the surface of the steel, the steel matrix is isolated from the air and effectively prevent the continued growth of rust. special elements contained in COR-TEN, in contact with the atmosphere, the formation of a layer of oxides film, this layer of solid film so that the COR-TEN in the outside world is isolated from the influence of the climate, and to achieve the purpose of weathering and corrosion resistance. When Corten-A or ordinary steel is exposed to the atmosphere, chemical reactions occur when it comes into contact with moisture and oxygen.
Corten-A weathering steel is made by adding a little copper, chromium, phosphorus and other elements to ordinary steel, and through special treatment, its weathering and corrosion resistance is three to eight times higher than that of ordinary steel. Depending on the type and application, CortenA can be categorized into four types: COR-TEN A, COR-TEN B, COR-TEN C, and COR-TENB-QT. Among them, COR-TEN A’s weathering and corrosion resistance is five to eight times better than that of ordinary steel, while COR-TEN B’s is four times better.
Corten A Weathering Steel Plate Chemical Composition
| Grade | C | Si | Mn | P | S | Al | V | Cu | Cr | Ni |
| CORTEN A | 0.12 max | 0.25 – 0.75 | 0.20 – 0.50 | 0.07 – 0.15 | 0.030 max | 0.015 – 0.06 | – | 0.25 – 0.55 | 0.50 – 1.25 | 0.65 max |
Corten A Corten Steel Material Mechanical Property
| Tensile Strength | Min. Yield Point | Elongation | |
|---|---|---|---|
| CORTEN A | [470 – 630 MPa] | [355 MPa] | 20 % min |
Heat Treatment Of Corten Steel Grade A Structural Steel Plates
| Heat Treatment | Temperature °C |
|---|---|
| Normalising | 860-940 (target 910) |
| Stress Relieving | 550-600 (target 580) |
FAQ
1.What’s your MOQ?
Usualloy 50 kgs.
2.What’s your delivery time?
For stocks, we can send the goods to loading port within 7 days after receiving your deposit.
For production period, it usually needs about 15days- 30 days after receiving the deposit.
3.Do you provide free samples?
Yes, we can provide a free sample for testing, If we have sample in stock, The quantity based on the material type, The buyer should bear all the shipping costs.
4.What’s your payment terms?
We accept 100% TT ( Telegraphic Transfer) in advance for small orders( value under USD 2000). For some big orders, we can accept 30% deposit, 70% balance before shipment. For very small orders , we can accept Western union payment. We are doing the best to match your demand.