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15-5PH / X5CrNiCuNb15-5

1.4545
Stainless Steelph
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Martensitic precipitation-hardening stainless steel. Similar to 17-4PH but with better transverse ductility and toughness due to lower delta ferrite. Used for aerospace structural components, nuclear reactor parts, food processing equipment, and high-performance fasteners.

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International equivalents

FlagStandardCountryGradeNumberMatch
🇺🇸AMSUSAUNS S15500S15500REF
🇪🇺ENEuropeX5CrNiCuNb15-51.454595%

Sources: AMS 5659, EN 10088-3

Mechanical properties — Pro

H900

PropertyValueUnit
Tensile Strength
Yield Strength
Elongation
Hardness HRC
Elastic Modulus
Density

H1025

PropertyValueUnit
Tensile Strength
Yield Strength

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All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.