Understanding the Composition and Properties of 905M39 Steel Grade

The 905M39 steel grade is a type of low alloy steel that is commonly used in various industrial applications. It is known for its high tensile strength, good toughness, and good wear resistance.

The mechanical properties of the 905M39 steel grade include a minimum tensile strength of 980-1180 MPa, a minimum yield strength of 785 MPa, and a minimum elongation of 12%. These properties make it suitable for applications that require high strength and toughness, such as in the manufacturing of automotive parts, gears, and heavy machinery.

In terms of technical properties, the 905M39 steel grade has a maximum hardness of 302 HB, which indicates its good wear resistance. It also has a good fatigue limit, making it resistant to repeated loading and cyclic stresses.

The chemical composition of the 905M39 steel grade typically includes elements such as carbon (0.36-0.44%), manganese (0.50-0.80%), chromium (0.70-1.10%), and molybdenum (0.20-0.30%). These elements contribute to the steel’s strength, toughness, and wear resistance.

Overall, the 905M39 steel grade is a versatile and reliable material with excellent mechanical and technical properties. Its combination of high tensile strength, good toughness, and good wear resistance make it suitable for a wide range of applications in various industries.