CortenA CortenB atmospheric steel plate
Atmospheric Corrosion Steel Plate Products Description
CortenA weathering steel plate, also known as COR-TEN A or Weathering Steel A.
CortenA corrosion-resistant steel plate is known for its good corrosion resistance, especially suitable for outdoor use, and can form a stable rust layer without painting.
CortenB weathering steel plate contains a small amount of alloy elements such as copper, nickel, chromium, and phosphorus. These elements work together to form a dense protective oxide film on the surface of the steel, effectively slowing down further corrosion.
CortenA CortenB Atmospheric Steel Plate Products Details
CortenA steel Chemical Composition Analysis:
| Grade | C max |
Si | Mn. | P | S max |
Cr | Ni | Cu | Nb+V+Ti |
| Corten A | 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 | - |
ASTM Corten B steel chemical composition by [%]:
| Grade | C max |
Si | Mn. | P | S max |
Cr | Ni | Cu | V |
|
Corten B |
0.16 | 0.30-0.50 | 0.80-1.25 | 0.030 | 0.030 | 0.40-0.65 | 0.40 | 0.25-0.40 | 0.02- 0.10 |
ASTM CortenB steel Mechanical properties:
| Grade | Thickness (mm) |
Yield Strength MPa(min) |
Tensile Strength MPa | Elongation % (min) |
|
Corten B |
≤16 | 355 | 470-630 |
20 |
| >16≤50 | 345 |
CortenA steel Mechanical Properties:
| Grade | Permissible yield point ratio |
Yield Strength MPa(min) |
Tensile Strength MPa |
Elongation % (min) |
Bend |
| Corten A | - | 355 | 470-630 |
20 |
1t |
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