Low-magnification structure of QT600-3 steel (normalized and tempered)

QT600-3 Steel

QT 600-3 steel (Quenched and tempered type 600-3) is a low phosphorus alloy steel with excellent properties. Specifically, the quenching and tempering treatment of the steel result in a higher hardness and better resistance to wear and tear. It is therefore an ideal material for high-end applications in industries such as automotive, oil and gas, and mechanical engineering.

QT600-3 steel is an advanced alloy steel which is formulated with advanced manufacturing technology. The alloying elements are added in a precise combination to achieve the desired properties. These include improved hardenability, better tolerance to cold-work and increased strength. The steel has an improved tensile strength of 800MPa and Brinell hardness of 600HB.

Heat treatment of QT600-3 steel is carried out in two steps: quenching and tempering. At first, the steel is quenched. During the quenching process, the steel is heated up to 900-1000 °C to facilitate the transformation of its phases from austenite to martensite. After being cooled at an appropriate rate, the metal is tempered at a temperature of about 500-650 °C for two hours. This process results in a higher hardness and better resistance to wear, tear and deformation.

QT 600-3 steel finds a wide range of applications in engineering, automotive and airframes industries. Generally, the steel is used to manufacture components placed under high stress or dynamic loads. It can also be used to fabricate tools and machinery components such as bolts, gears, and clutches. Because of its excellent properties, the steel is frequently chosen for the manufacturing of knives, tools, and springs which often require high strength and flexibility.

QT 600-3 steel is one of the most preferred steels for extremeload and wear-resistant applications. It has excellent formability and weldability, making it suitable for various manufacturing processes. Furthermore, it is corrosion-resistant and requires low maintenance.

In conclusion, QT 600-3 steel is a versatile, low-alloy steel which is ideal for high-demand applications. It provides excellent wear-resistance and superior strength. Additionally, the steel is easy to form and weld; this makes it a popular material for manufacturing components used in various industries.

QT600-3 Steel (with Normalizing and Tempering Treatment) In Low Magnification

QT600-3 steel is a widely used structural material along with QT600-3C steel. It is known for its excellent mechanical and physical properties, such as its higher strength, good wear resistance and impact resistance.

QT600-3 steel is used for the production of parts for industrial machinery, automobiles, construction engineering, mining machinery and other industries that require high strength and toughness.

QT600-3 steel is a low-carbon steel which is heat treated with normalizing (N) and tempering (T) treatments to reach its specific ideal strength and toughness parameters. The N treatment takes place at 860℃ and is followed by air cooling. The T treatment is usually done at 540℃ and is followed by a slow cooling in still air or oil bath.

In low magnification, QT600-3 steel has a ferrite-pearlite (F-P) structure, which is made up of alternating ferrite and pearlite layers. The F-P structure increases the elongation of the steel, making it more flexible and more resistant to fatigue. In addition, the F-P structure increases the weldability of the steel, making it easy to weld onto other metals.

The surface finish of QT600-3 in low magnification can be machined and worked with a variety of techniques, resulting in a distinctive and pleasing appearance. Good bonding characteristics are also provided in this condition.

QT600-3 steel in low magnification has excellent wear resistance, making it suitable for applications where high wear conditions are expected.