ASTM A588 is a specification for high-strength, low-alloy structural steel with enhanced atmospheric corrosion resistance. It is commonly referred to as "weathering steel" due to its ability to withstand exposure to various weather conditions without rusting or deteriorating.
Here are the key specifications and properties of ASTM A588 steel:
Composition: ASTM A588 steel is primarily composed of iron (Fe), along with small amounts of copper (Cu), chromium (Cr), and nickel (Ni). The exact composition may vary depending on the specific production methods and heat treatment used.
Mechanical Properties:
Yield Strength: The minimum yield strength of ASTM A588 steel is 50,000 psi (345 MPa).
Tensile Strength: ASTM A588 steel has a minimum tensile strength of 70,000-90,000 psi (485-620 MPa).
Elongation: The typical elongation at break for ASTM A588 steel is around 21%.
Fatigue Resistance: ASTM A588 steel exhibits good fatigue resistance, allowing it to withstand cyclic loading without significant loss of strength.
Corrosion Resistance: ASTM A588 steel offers excellent corrosion resistance due to the formation of a protective oxide layer on its surface when exposed to the atmosphere. This property makes it suitable for outdoor applications without the need for additional protective coatings.
Weldability: ASTM A588 steel can be welded using common welding methods such as arc welding, spot welding, and gas metal arc welding. Precautions may be required to avoid excessive heat input and control the cooling rate to maintain the desired mechanical properties.
Applications: ASTM A588 steel is widely used in various applications where high-strength and corrosion resistance are required. Common applications include bridges, buildings, construction equipment, freight cars, transmission towers, and architectural components.
It's important to note that the mechanical properties and yield strength of ASTM A588 steel may vary depending on the specific grade within the A588 specification. The most commonly used grade is ASTM A588 Grade A, but there are also grades B, K, and C available with slightly different mechanical properties.
For precise and up-to-date information on the specifications, properties, and yield strength of a particular grade within ASTM A588, it is recommended to consult the relevant material standards or technical data sheets provided by the steel manufacturer or supplier.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
