Exploring the Properties and Uses of A290/A290M-16 Steel Grade
The A290/A290M-16 steel grade is a low alloy structural steel commonly used in construction and engineering applications. It is categorized under the ASTM A290/A290M standard.
Chemical Composition:
The chemical composition of A290/A290M-16 steel grade is as follows:
– Carbon (C): 0.26% – 0.29%
– Manganese (Mn): 0.90% – 1.35%
– Phosphorus (P): 0.04% max
– Sulfur (S): 0.05% max
– Silicon (Si): 0.15% – 0.60%
– Copper (Cu): 0.20% min, when copper steel is specified
– Chromium (Cr): 0.40% max
– Nickel (Ni): 0.40% max
– Molybdenum (Mo): 0.08% max
Mechanical Properties:
The mechanical properties of A290/A290M-16 steel grade are specified in the ASTM A290/A290M standard. Some key mechanical properties include:
– Yield Strength: 290 MPa (42 ksi) minimum
– Tensile Strength: 400-550 MPa (58-80 ksi)
– Elongation: 18% minimum
– Charpy V-notch Impact Test: 27 J (20 ft-lbf) minimum at -50°C (-58°F)
Standard Number:
A290/A290M-16 is the ASTM standard number that specifically refers to the A290/A290M steel grade. It provides guidelines and specifications for the chemical composition, mechanical properties, and other relevant characteristics of the steel grade.
Uses:
A290/A290M-16 steel grade is commonly used in various structural and construction applications where strength and durability are required. It can be used in building frames, bridges, machinery, and other components where a high-strength steel is needed.
The A290/A290M-16 steel grade offers good weldability and machinability, making it suitable for fabrication processes. It can be joined using various welding techniques, including arc welding, resistance welding, and gas welding.
Additionally, this steel grade has good corrosion resistance, especially when compared to carbon steels. It can be further enhanced with protective coatings or surface treatments to improve its resistance to environmental factors.
Conclusion:
The A290/A290M-16 steel grade is a low alloy structural steel commonly used in construction and engineering applications. Its chemical composition and mechanical properties provide it with strength, durability, and weldability. This steel grade is used in various structural components where high-strength and corrosion resistance are required. It is essential to refer to the ASTM A290/A290M standard for specific guidelines and requirements for this steel grade.