Chemical Composition:
| Element | Percentage |
|---|---|
| C | 0.19% Max |
| Mn | 0.80 – 1.25% |
| P | 0.030% Max |
| S | 0.030% Max |
| Si | 0.30 – 0.65% |
| Cu | 0.25 – 0.40% |
| Cr | 0.40 – 0.65% |
| Ni | 0.40% Max |
| V | 0.02 – 0.10% |
Mechanical Properties:
| Property | Value |
|---|---|
| Yield Strength (min) | 50 ksi (345 MPa) |
| Tensile Strength (min) | 70 ksi (485 MPa) |
| Elongation in 8″ (min) | 18% |
| Elongation in 2″ (min) | 21% |
ASTM A709 Grade 50W steel is primarily used in:
Its enhanced atmospheric corrosion resistance makes it suitable for use in bare (unpainted) conditions in many environments.
Available dimensions for ASTM A709 Grade 50W steel:
| Thickness (in) | Width (in) | Length (in) |
|---|---|---|
| 0.1875 – 3.00 | 72 – 120 | 240 – 1200 |
ASTM A709 Grade 50W offers improved atmospheric corrosion resistance compared to standard grades. It has an ASTM G101 enhanced Atmospheric Corrosion Resistance Index of ≥6.0, making it suitable for use in exposed structures without painting.
| Grade | Yield Strength (min) | Tensile Strength (min) | Corrosion Resistance |
|---|---|---|---|
| 50 | 50 ksi (345 MPa) | 65 ksi (450 MPa) | Standard |
| 50W | 50 ksi (345 MPa) | 70 ksi (485 MPa) | Improved |
| HPS 70W | 70 ksi (485 MPa) | 85 ksi (585 MPa) | High Performance |
ASTM A709 Grade 50W steel has good weldability and can be welded using conventional methods. It has fair machinability and formability, requiring more force for forming compared to plain carbon steels.At HL Steel Company, we offer high-quality ASTM A709 Grade 50W steel coils tailored for bridge construction and other structural applications, ensuring optimal performance and durability for your projects.
121, Building 114, Jiangsu Street, Wuzhou International Industrial Expo City, Xinwu District, Wuxi City,Jiangsu Province,China
Building 114, Jiangsu Street, Wuzhou International Industrial Expo City, Xinwu District, Wuxi City
We will contact you within 1 working day, please pay attention to the email with the suffix “[email protected]”.