Taiyuan Yaoqiang Pure Iron Co., Ltd.--DT4 Electrical Pure Iron (also known as Electromagnetic Pure Iron ) is a material with high magnetic permeability, low coercivity, and high purity iron content, widely used in various electromagnetic devices. DT4 belongs to the Chinese National Standard GB/T 6983-2008 for electromagnetic pure iron. Its grade is composed of the pinyin initials "D" and "T" for "electric" and "iron," the sequence number "4," and the magnetic grade symbol.

Yaoqiang Pure Iron--Chemical Composition and Physical Properties

The chemical composition of DT4 mainly includes high-purity iron, with specific components as shown in the table below:

The physical properties of DT4 include high magnetic permeability, low coercivity, and excellent electromagnetic performance. Its coercivity (HC) is ≤96.0 A/m, and the coercivity aging increment (△HC) is ≤9.6 A/m.

Yaoqiang Pure Iron--Application Fields

DT4 is widely used in the following fields:

• Electrical and Telecommunications: Used for cores and armature yokes of various types of relays.
• Electromagnets: Used as core material.
• Instruments and Meters: Used for magnetic conductive components.
• DC Motors: Used for cores and casings.
• Automobiles and Tractors: Used for electrical or magnetic components.
• Electronic, Electrical, and Electrical Components: Such as relays, sensors, solenoid valves, etc.

Yaoqiang Pure Iron--Production Process and Specifications

The production of DT4 typically follows this process route: EBT primary refining for dephosphorization, decarburization, and heating; VOD refining for vacuum decarburization; LF furnace refining for desulfurization; VD refining for degassing and inclusion removal; casting. This process ensures the high purity and excellent electromagnetic performance of DT4. Specifications vary, including plates, strips, and bars of different thicknesses, which can be cut according to requirements.

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