Reduce costs by changing magnetic shield material
From an HDD manufacturer's design and development department:
We'd like to use magnetic shielding to avoid noise. Is there a cheap material we could use?
TDS-1 magnetic stainless steel is cheap thanks to its low nickel content, and has good corrosion resistance, which eliminates the need for post-process plating. Costs reduced by switching from permalloy and plated products.
【Before】 Permalloy, SPCC + Plating, SUY + Plating
■ Reduce costs (Because TDS-1 contains only 1% of Ni.)
■ Unnecessary plating by corrosion resistance improvement
■ Lower size (Because TDS-1 has high strength, it can be reduced the thickness)
TDS-1 is slightly different from other material in a magnetic characters.