Stainless 403 steel plate is a martensitic alloy, hardenable by heat treatment. Stainless 403 steel plate is a strong, corrosion-resistant steel that can be used in Steam and Gas Turbine Blades in the Power Generation Industry. Other Stainless 403 steel plate applications are Bushings, Buckets, Fasteners, Valve Components, Missile Rocket Components and Medical Instruments.
SS 403 Plates Equivalent Grades :
| STANDARD | UNS | JIS |
| SS 403 | S40300 | SUS 403 |
Annealing
May be annealed at 1500-1650°F, followed by a slow cool to 1100°F , and a final air cool.
Hardening
Material may be fully hardened by oil quenching from 1650-1800°F
Light sections may be hardened by air or fan cooling.
Alloy will harden, to varying degrees, when cooled from temperatures above 1500°F
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