Alloys: 405, 409, 429, 430, 434, 436, 442, 446
Straight chromium alloy, magnetic, but not heat treatable.
Typical use: Automotive trim, cooking utensils
400 Series Martensitic – Alloys: 403, 410, 414, 416, 420, 422, 431, 440
Straight chromium alloy, magnetic, but can be hardened by heat treatment.
Typical use: Fasteners, pump shafts, turbine blades