The A668/A668M-17 steel grade is a high-strength carbon-manganese steel that is commonly used in the construction and fabrication industry. It has excellent mechanical properties, making it suitable for a wide range of applications.
The chemical composition of A668/A668M-17 steel grade is as follows:
– Carbon (C): 0.22% maximum
– Manganese (Mn): 1.00-1.65%
– Phosphorus (P): 0.035% maximum
– Sulfur (S): 0.040% maximum
– Silicon (Si): 0.15-0.35%
These elements contribute to the overall strength and durability of the steel. The carbon content provides hardness and strength, while the manganese content enhances the hardenability and tensile strength. The presence of phosphorus and sulfur helps in improving the machinability of the steel.
The mechanical properties of A668/A668M-17 steel grade are:
– Tensile strength: 70-90 ksi (483-620 MPa)
– Yield strength: 50 ksi (345 MPa) minimum
– Elongation in 2 inches: 20% minimum
– Reduction of area: 35% minimum
These mechanical properties make the A668/A668M-17 steel grade ideal for structural applications, such as building frames, bridges, and offshore platforms. Its high tensile strength and yield strength ensure the structural integrity and load-bearing capacity of the components.
Additionally, the A668/A668M-17 steel grade exhibits good weldability and can be easily formed and fabricated into various shapes and sizes. This makes it versatile and suitable for a wide range of manufacturing processes.
Overall, the A668/A668M-17 steel grade is a reliable and durable material that meets industry standards and is widely used in construction and fabrication applications. Its excellent mechanical properties and chemical composition make it a preferred choice for many engineering projects.