The A709 steel, which is composed of iron, manganese, carbon, and other elements, maintains an excellent strength-to-weight ratio. This means that smaller quantities of steel are required in order to meet our customer’s varying strength requirements, improving efficiency and cutting down on excess weight.
A709 steel also maintains excellent corrosion resistance, allowing it to maintain long lifespans–even during the most harsh atmospheric conditions. These properties make A709 steel ideal for applications such as bridges, and is a standard material employed by the American Association of State Highway and Transportation.
ASTM A709 grade 50 bridge building steel plate chemical composition:
Thickness(mm) | C | Si | Mn | P | S | Cu (Min) |
T≤10 | 0.23 | 0.4 | 0.50-1.35 | 0.04 | 0.05 | 0.2 |
10<T≤40 | 0.80-1.35 | |||||
40<T | 0.15-0.40 |
ASTM A709 grade 50 bridge building steel plate mechanical property:
Yield Strength (MPa) min. | Tensile Strength (MPa) min. | Elongation in 8 in. min. % | Elongation in 2 in. min. % |
345 | 450 | 18 | 21 |
ASTM A709 grade 50 bridge building steel plate application:
ASTM A709 grade 50 bridge building steel plate Is Popularly Used In Building Bridges, Marine Transportation, Construction Of Sculptures and Has Many Other Architectural Applications.