ASTM A588/A588M-15 is a standard specification for high-strength low-alloy structural steel with improved atmospheric corrosion resistance. This steel grade is commonly used in structural applications such as bridges, buildings, and construction equipment.
The chemical composition of A588/A588M-15 steel grade is as follows:
– Carbon (C): 0.19% max
– Manganese (Mn): 0.80-1.25%
– Phosphorus (P): 0.04% max
– Sulfur (S): 0.05% max
– Silicon (Si): 0.30-0.65%
– Nickel (Ni): 0.40% max
– Chromium (Cr): 0.40-0.65%
– Copper (Cu): 0.25-0.40%
– Vanadium (V): 0.02-0.10%
The mechanical properties of A588/A588M-15 steel grade include:
– Tensile strength: 485-620 MPa
– Yield strength: 345 MPa
– Elongation in 2 inches: 18% min
– Elongation in 8 inches: 21% min
The standard number for A588/A588M-15 steel grade is ASTM A588/A588M-15.
This steel grade offers excellent corrosion resistance, making it suitable for outdoor applications exposed to the elements. It can withstand atmospheric conditions such as rain, snow, humidity, and extreme temperature variations. The composition and mechanical properties of A588/A588M-15 steel grade make it ideal for structural components that require high strength and durability.
Some common applications of A588/A588M-15 steel grade include:
– Bridges and highway structures: A588/A588M-15 steel is often used in bridge construction due to its high strength and resistance to corrosion. It can withstand the harsh outdoor conditions and provides long-lasting performance.
– Buildings and construction equipment: A588/A588M-15 steel grade is also utilized in various building structures such as skyscrapers, stadiums, and industrial facilities. It is used in the construction of equipment that is exposed to harsh environments, such as cranes and excavators.
– Railway cars and containers: Due to its corrosion resistance properties, A588/A588M-15 steel grade is used in the manufacturing of railway cars and shipping containers. This ensures their longevity and protection against corrosion during transportation.
In conclusion, A588/A588M-15 steel grade is a high-strength low-alloy structural steel with improved atmospheric corrosion resistance. Its composition and mechanical properties make it suitable for various structural applications, especially in outdoor environments.