Standard Title: “Standard Specification for High-Strength Low-Alloy Structural Steel”
Chemical Composition:
The A242/A242M-13 steel grade is a high-strength, low-alloy structural steel. Its chemical composition consists of:
– Carbon (C): 0.15% maximum
– Manganese (Mn): 1.00% maximum
– Phosphorus (P): 0.15% maximum
– Sulfur (S): 0.05% maximum
– Silicon (Si): 0.40% maximum
– Chromium (Cr): 0.30% maximum
– Nickel (Ni): 0.65% maximum
– Copper (Cu): 0.20% minimum, up to 0.60%
– Vanadium (V): 0.02% to 0.15%
Mechanical Properties:
– Tensile Strength (MPa): The A242/A242M-13 steel grade has a minimum yield strength of 345 MPa (50 ksi) and a minimum tensile strength of 450 MPa (65 ksi).
– Yield Strength (MPa): The minimum yield strength of the A242/A242M-13 steel grade is 345 MPa (50 ksi).
– Elongation: The steel exhibits an elongation of 21% minimum in 200mm and 18% minimum in 50mm.
Standard Number:
The A242/A242M-13 steel grade is specified under ASTM A242/A242M-13, which is the standard specification for high-strength low-alloy structural steel.
Corresponding Applications:
The A242/A242M-13 steel grade finds its applications in various fields, including construction, bridges, buildings, and other structural applications. It is commonly used in outdoor structures exposed to atmospheric conditions due to its corrosion resistance properties.
Performance:
The A242/A242M-13 steel grade exhibits excellent atmospheric corrosion resistance, making it suitable for outdoor structural applications. It also has good weldability and formability, enabling its use in various construction projects. Additionally, its high-strength properties contribute to its reliability and durability in structural applications.