Qt400 450 500 Ductile Iron Bar

Qt400, Qt450, and Qt500 are grades of ductile iron bars that have different mechanical properties and applications. Qt400 ductile iron bar has a minimum tensile strength of 400 MPa and a minimum elongation of 18%. It is commonly used in the manufacturing of gears, cams, and other mechanical components that require high strength and wear resistance. Qt450 ductile iron bar has a minimum tensile strength of 450 MPa and a minimum elongation of 12%. It is commonly used in the manufacturing of automotive parts, such as crankshafts, connecting rods, and suspension components. Qt500 ductile iron bar has a minimum tensile strength of 500 MPa and a minimum elongation of 7%. It is commonly used in the manufacturing of heavy-duty machinery, such as hydraulic cylinders, mining equipment, and construction machinery. Overall, ductile iron bars offer excellent mechanical properties, including high strength, toughness, and wear resistance. They are also cost-effective and easy to machine, making…