The A662/A662M-17 steel grade is a specification for pressure vessel plates, carbon-manganese-silicon steel, for moderate and lower temperature service. This steel grade is typically used in the construction of pressure vessels and storage tanks.
The chemical composition of A662/A662M-17 steel grade includes carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), and copper (Cu). The maximum carbon content is 0.24%, while the maximum manganese content is 1.00%. The maximum phosphorus and sulfur content is 0.035%, and the maximum silicon content is 0.40%. The copper content is limited to 0.35%.
The mechanical properties of A662/A662M-17 steel grade include tensile strength, yield strength, and elongation. The minimum tensile strength is 485-620 MPa, while the minimum yield strength is 275 MPa. The minimum elongation is 15%.
This steel grade is commonly used in the fabrication of pressure vessels for moderate and lower temperature service, particularly in environments where high strength and corrosion resistance are required. It is also used in storage tanks and other applications that require high tensile strength and good weldability.
A662/A662M-17 steel grade complies with the ASTM A662/A662M standard. This standard provides specifications for carbon-manganese-silicon steel plates for use in welded pressure vessels.
In summary, A662/A662M-17 steel grade is a carbon-manganese-silicon steel used for pressure vessels and storage tanks. It has good tensile strength, yield strength, and elongation, making it suitable for various applications in moderate and lower temperature service. This steel grade complies with the ASTM A662/A662M standard.