The A640-97 (2014) steel grade is a type of steel that is used in various industries for its high strength and durability. It is commonly used in structural applications, such as building frames, bridges, and offshore platforms.
The chemical composition of A640-97 (2014) steel grade is as follows:
– Carbon (C): 0.16% max
– Manganese (Mn): 0.80-1.20%
– Silicon (Si): 0.15-0.50%
– Phosphorus (P): 0.040% max
– Sulfur (S): 0.040% max
– Chromium (Cr): 0.40% max
– Nickel (Ni): 0.40% max
– Copper (Cu): 0.35% max
– Molybdenum (Mo): 0.15-0.50%
These chemical elements contribute to the strength and toughness of the steel grade, making it suitable for various applications.
In terms of mechanical properties, the A640-97 (2014) steel grade has the following properties:
– Tensile strength: 640 MPa (93000 psi)
– Yield strength: 400 MPa (58000 psi)
– Elongation: 20% min
– Charpy V-notch impact energy: 27 J (20 ft-lbf) min at -20°C (-4°F)
These mechanical properties indicate the steel grade’s ability to withstand external forces and impacts, making it suitable for demanding applications.
The A640-97 (2014) steel grade is standardized by the American Society for Testing and Materials (ASTM), under the standard number A640-97 (2014). This standard provides specifications and guidelines for the chemical, mechanical, and physical properties of the steel grade.
Overall, the A640-97 (2014) steel grade is a high-strength and durable material that is widely used in various industries for its excellent mechanical properties and versatility in different applications.