Material selection depends on equipment weight, structural strength, corrosive environment, thermal needs, manufacturing methods, and surface treatments. DIN rail enclosures require focus on internal component mounting and hardware fit; battery enclosures must address module weight, support structures, and environmental conditions; heat sink enclosures also require evaluating thermal conductivity impacts.

Material alone does not ensure IP67. Panels, seals, fasteners, connectors, cable glands, and assembly processes all impact overall protection. For custom builds, specify material grade, thickness, finish, and operating environment, then validate through structural testing.