What is EN45 high carbon steel material?

EN45 High carbon steel is a carbon steel commonly used to make springs and other elastic components. It has high strength and wear resistance and is suitable for high load and high pressure applications.

1. EN45 high carbon steel characteristics and uses:

EN45 High carbon steel with high strength and wear resistance is suitable for the manufacture of springs and other elastic components, such as coil springs, torsion springs, plate springs, hoop springs, etc. These elastic elements are widely used in various mechanical equipment and engineering structures, and play a role in supporting, cushioning, damping and so on.

2. Composition parameters:

The composition parameters of EN45 high carbon steel are as follows:

Carbon (C) : 0.65-0.75%

Silicon (Si) : 0.50% Max

Manganese (Mn) : 0.60-0.90%

Phosphorus (P) : Maximum 0.025%

Sulfur (S) : Maximum 0.025%

The reasonable proportion of these components makes EN45 high carbon steel have good mechanical properties and machining properties.

3. heat treatment:

EN45 high carbon steel can be normalized and quenched. Normalizing temperature is 830-870℃, quenching temperature is 820-860℃. Through heat treatment, the structure of the steel can be changed to improve its hardness and strength to meet the needs of different applications.

4. heat treatment hardness:

After normalization and quenching treatment, the hardness of EN45 can reach HB 241-302. This makes EN45 high carbon steel have better wear resistance and fatigue resistance when subjected to high loads and pressures.

5. mechanical properties and surface treatment:

The mechanical properties of EN45 high carbon steel are as follows:

Tensile strength: 1130-1320 MPa

Yield strength: 980-1170 MPa

Elongation: 7-12%

Hardness: HB 241-302

The surface treatment of EN45 can be galvanized, spray painted and other methods to improve its corrosion resistance and beauty.

6. machining and grinding capacity:

EN45 has good machining and grinding capabilities, which can be processed by turning, milling, drilling, cutting, grinding, etc. This allows EN45 high carbon steel to be easily formed and processed to meet the requirements of different products.

7. Physical properties:

EN45 high carbon steel has a density of 7.85 g/cm³, a thermal conductivity of 46.6 W/mK, a linear expansion coefficient of 11.5×10^-6/℃, and a specific heat capacity of 0.47 kJ/(kg·K). These physical properties make EN45 high carbon steel have good stability and heat conductivity at different temperatures and pressures.

Product advantages:

EN45 High carbon steel with high strength and wear resistance is suitable for the manufacture of springs and other elastic components, such as coil springs, torsion springs, plate springs, hoop springs, etc. Compared with other carbon steels, EN45 has higher strength and hardness, and has better machining and grinding capabilities, which can be processed and formed in a variety of ways. This makes EN45 high carbon steel one of the ideal materials for the manufacture of elastic components.