Electrical pure iron DT4E is a special soft magnetic material commonly used in the manufacturing of electromagnetic components. Its main characteristics include high magnetic permeability, low coercivity, and small iron loss. The initial permeability of DT4E typically ranges from 3000 to 7000, with a maximum permeability that can exceed 15,000. These values are influenced by factors such as material purity and processing techniques.

Composition and Manufacturing Process

DT4E has a carbon content controlled below 0.004%, with extremely low levels of impurities such as sulfur and phosphorus, and a silicon content of about 0.4%. The production process employs vacuum melting technology to ensure fewer internal pores and inclusions compared to similar products. The grain size is adjusted to a range of 50-100 micrometers through annealing processes, and reduced grain boundary impurities allow for smoother magnetic domain movement.

Application Areas

DT4E is widely used in electromagnetic components such as electromagnetic relays, solenoid valves, magnetic particle clutches, sensors, and automotive brakes. For example, magnetic cores made from DT4E are 30% more energy-efficient than those made from ordinary electrical iron. While the engagement time is reduced by 22%, the temperature rise is lowered by 18°C. Additionally, DT4E is used in electronic locks, automotive pistons, aviation instruments, and pure iron applications.