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ASTM A242 steel is a kind of high strength weathering steel, or atmosphere corrosion resistance steel , or corten steel.
ASTM A242 steel is well known for its weathering ability. When exposed to external conditions, the corrosion-resistant properties of ASTM A242 steel become stronger, even when unpainted. ASTM A242 steel has four times corrosion resistance as much as carbon steel.
ASTM A242 steel properties – mechanical properties:
| Grade | Min. Yield Strength MPa | Tensile Strength MPa | |||||||
| ASTM | Nominal Thickness (mm) | Nominal Thickness (mm) | |||||||
| Thick mm | ≤16 | >16 ≤40 | >40 ≤63 | >63 ≤80 | >80 ≤100 | >100 ≤150 | ≤3 | >3 ≤100 | >100 ≤150 |
| A242 | 355 | 345 | 335 | 325 | 315 | 295 | 510-680 | 470-630 | 450-600 |
ASTM A242 steel maintains an excellent strength-to-weight ratio, meeting the strength requirements of carbon steel while reducing weight. ASTM A242 steel is used in a broad range of applications such as phone towers, freight cars, bridge and gusset plates, housing enclosures, etc.
