Custom 465 stainless is a premium melted, martensitic, age-hardenable alloy capable of ultimate tensile strength in excess of 250 ksi in the overaged (H 950) condition. This alloy was designed to have excellent notch tensile strength and fracture toughness in this condition. Overaging to the H1000 condition provides a superior combination of strength, toughness and stress corrosion cracking resistance compared with other high-strength PH stainless alloys such as Custom 455 stainless or 13-8 stainless.

The general corrosion resistance of Custom 465 stainless approaches that of Type 304 stainless. Exposure to 5% neutral salt spray at 95°F (35°C) (per ASTM B117) caused little or no rusting after 200 hours regardless of condition (i.e., annealed or H900-H1100 conditions).

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