Application and Analysis of DT4 Pure Iron, DT4 Electromagnetic Pure Iron, and DT4 Electrical Pure Iron Materials

DT4 pure iron, also known as electromagnetic pure iron, electrical pure iron, and industrial pure iron, uses "DT4" as the material grade designation. The grade consists of the pinyin initials "D" and "T" (for "electric" and "iron"), followed by the sequence number "4", and symbols indicating magnetic properties (A for high-grade, E for premium-grade, C for super-grade). The old 1986 national standard included DT3 and DT3A grades, but these were removed in the updated GB/T 6983-2008 standard. The above data is from the new version.

How to Determine the Grade of Electromagnetic Pure Iron?

Unlike other steels, the chemical composition of Yaogiang electromagnetic pure iron is for reference only and is not used as an acceptance criterion. The magnetic inspection of electromagnetic pure iron products typically only measures coercivity (Hc), and the grade is determined based on the coercivity value.

Magnetic Inspection of Electromagnetic Pure Iron (GB/T 6983)

Application Scenarios of Pure Iron Materials: