L605

High-Temp Steel

L605

Co-base superalloy. (UNS R30605; equiv Haynes 25 / UNS R30605 / AMS 5537). Nominal values—confirm mill certificate.

Chemical Composition (%)

CR19
NI9
W14

Mechanical Properties

Tensile:≥940 MPa;Yield:≥420 MPa

Equivalent Standards

AMS 5537

Equivalent Grades

UNS R30605 L605 / Haynes 25 / UNS R30605

Applications

钴基高温合金。,"Sheet

Available Forms

Bar"

Uses

Heat- and creep-resistant steel for elevated-temperature service with stable strength and oxidation resistance. Used in furnace parts, exhaust manifolds, turbine components, boiler tubes and engine valves.

Heat Treatment

Normally used in the solution-annealed or precipitation-hardened condition; stabilise/age per the grade (e.g., 650–800 °C ageing). Avoid long exposure in the sigma/475 °C embrittlement ranges.

Precautions

Maintain the recommended heat-treatment envelope; prolonged time in embrittlement ranges reduces ductility. Use descaling/protective atmosphere to limit scaling.

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