4J52 Pins

4J52 Fe-ni constant expansion alloys are a series of constant expansion alloys which can be matched with soft glass and ceramic with different expansion coefficient in a given temperature range by adjusting the nickel content. The expansion coefficient and Curie point increase with the increase of the nickel content.

Chemical Domposition

Mark	C	P	S	Mn	Si	Ni	Fe
4J52	≤0.05	≤0.02	≤0.02	≤0.8	≤0.3	51.5~52.5	balance

 

Physical Constants

Density: About 8.5g/cm³, relatively high.

Melting point: about 1300-1400°C, with a high melting point, suitable for high temperature environment.

Thermal expansion coefficient: 11-13×10^-6/°C, with low thermal expansion.

Magnetism: 4J52 alloy has a certain degree of magnetism and can be magnetized to a certain extent.

material performance

1. High strength :4J52 alloy material has high tensile strength and yield strength, good mechanical strength and bearing capacity, can withstand greater pressure and impact load.

2. High hardness :4J52 alloy material has high hardness, good wear resistance and corrosion resistance, and can resist the erosion and wear of various chemical substances.

3. High wear resistance :4J52 alloy material has good wear resistance, can resist friction and wear under various working conditions, and has long service life.

4. High corrosion resistance :4J52 alloy material has good corrosion resistance, can resist the corrosion of various chemical substances, suitable for a variety of corrosive environment.

5. Excellent oxidation resistance :4J52 alloy material has good oxidation resistance, can maintain stable performance at high temperatures, suitable for a variety of high temperature environments.

6. High coefficient of thermal expansion :4J52 alloy material has high coefficient of thermal expansion, good thermal stability and thermal matching performance, suitable for connection and coordination between various materials.

7. Remarkable plasticity and toughness :4J52 alloy material has remarkable plasticity and toughness, and can maintain good overall performance and stability under large deformation and impact load.

Performance

4J52 alloy has high permeability and saturation magnetic induction, low hysteresis loss and iron loss. It can maintain stable performance over a wide temperature range, and has excellent mechanical properties and toughness. Therefore, it is widely used in electrical appliances, electronics, computers, communications and other fields, and is an indispensable important material in modern industrial production.

In the field of electronic communication, 4J52 alloy is widely used, such as the production of high-power power transformers, high-precision inductors, high-speed motors and so on. In the power industry, it is widely used in the manufacture of motors, transformers, generators and inductors of various sizes. In addition, the material is also widely used in various electromagnetic equipment in the automotive industry, aerospace and other fields.