Why Choose Ultra-Thin DT4 for Shielding?
Ultra-Thin & Space-SavingAt just 0.1mm thick, DT4 avoids extra weight and bulk, ideal for compact devices. Its slim profile also makes forming, stamping, and shaping into custom parts easier.
Excellent Low-Frequency Magnetic ShieldingUnlike stainless steel and aluminum (only effective for high-frequency EMI), DT4 pure iron has high magnetic permeability (μ ≥ 7.5 × 10⁻³ H/m) and reliably shields low-frequency magnetic fields (50Hz–1kHz) by redirecting magnetic flux.
Ideal Soft Magnetic PropertiesIt magnetizes readily and demagnetizes fully without residual magnetism, avoiding interference with sensors, relays, and precision instruments. Coercivity: 32–96 A/m by grade.
Good Processability & Surface QualityCold-rolled to tight thickness tolerances (±0.03mm) with a bright annealed finish, ready for stamping, laser cutting, and deep drawing. Lightly oiled for rust protection during storage and transport.
Key Specifications
Frequently Asked Questions
Q:What thickness is best for magnetic shielding?
A: For most low-frequency shielding applications, 0.3mm to 0.5mm provides effective protection. If weight and space are critical, 0.1mm to 0.2mm still offers meaningful attenuation.
Q:Will this rust during shipping?
A: The sheets are coated with anti-rust oil and wrapped in moisture-proof packaging. For long sea freight, we add VCI paper and sealed wooden crates. We recommend using the material within 3–4 months of arrival.
Q:Can I get custom-cut shapes?
A: Yes. We offer precision slitting to width, laser cutting, and custom stamping services to reduce your secondary processing.
Q:Is this material easy to stamp?
A: Yes. Delivered in a soft annealed condition, it stamps cleanly with minimal burr formation, making it suitable for high-volume production.
Q:What is the difference between DT4 and DT4C?
A: DT4C is a higher-purity grade with carbon content ≤0.005% and lower coercivity (≤32 A/m), offering better magnetic performance for the most demanding shielding and sensor applications.
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