HastelloyX

High-Temp Steel

HastelloyX

Ni-Cr-Fe-Mo heat-resistant alloy. (UNS N06002; equiv Hastelloy X / UNS N06002). Nominal values—confirm mill certificate.

Chemical Composition (%)

CR20.5
FE17
MO8
W0.2

Mechanical Properties

Tensile:≥660 MPa;Yield:≥240 MPa

Equivalent Grades

UNS N06002 HastelloyX / Hastelloy X / UNS N06002

Applications

镍铬铁钼耐热合金。,"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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