The ASTM A479 specification covers stainless steel hot and cold worked bars, including round, square, and hexagonal, as well as hot rolled or extruded shapes such as angles, tees, and channels for boiler and pressure vessel construction. Four grades of stainless steel are available, including austenitic, austenitic-ferritic, ferritic and martensitic grades. Mechanical properties, such as tensile strength, yield strength, elongation, and hardness, shall be determined for specimens subjected to normalized, tempered, annealed, and quenched conditions. Austenitic stainless steels shall be heat treated and subjected to corrosion tests.