표 1. | Table 1. 물질별 전기 전도도와 EMI(전자기 간섭) 차폐 특성 | Electrical conductivity and EMI (electromagnetic interference) shielding characteristics by material.

Material	Electrical conductivity of materials (S/m)	EMI shielding performance
Copper(Cu)	Approx. 5.96×107	Excellent high-frequency EMI shielding
Aluminum(Al)	Approx. 3.50×107	Lightweight and corrosion-resistant, excellent EMI shielding
Iron(Fe)	Approx. 1.00×107	Effective for low-frequency magnetic shielding
Stainless steel	Approx. 1.45×107	Used for EMI shielding in specific environments