Hastelloy X

General Description

Hastelloy X is a nickel-chromium-iron-molybdenum alloy containing approximately 22% chromium for outstanding resistance to oxidation at high temperatures up to 1200°C.

Hastelloy X has good high temperature and stress rupture properties above 790°C (1450°F) and can be used for applications up to 1200°C (2200°F). With the high levels of chromium, nickel and molybdenum in the material, Hastelloy X exhibits levels of corrosion resistance similar to high nickel alloys more customarily used in corrosion applications.

Hastelloy X can be used in many industrial furnace applications because of its resistance to oxidizing, neutral and carburizing atmospheres; widely used for aircraft parts, such as jet engine tailpipes, afterburners, turbine blades, and vanes.

Chemical Composition

Grade Ni% Cr% Fe% Mo% C% Mn% Si% Co% Al% W% B% S% P%
Hastelloy X Bal. 20.5-23.5 17.0-20.0 8.0-10.0 0.05-0.15 Max 1.0 Max 1.0 0.5-2.5 Max 0.1 0.2-1.0 Max 0.005 Max 0.01 Max 0.015

Designations

UNS N06002

Werkstoff Nr. 2.4665

Specifications

Hastelloy X Wire: AMS 5798

Hastelloy X Bar: ASTM B572

Hastelloy X Forging: AMS 5754

Hastelloy X Pipe: ASTM B622

Hastelloy X Sheet/Strip: ASTM B435

Physical Properties

Density:8.3g/cm3

Melting Point: 1260°C-1355°C

Mechanical Properties

Solution Annealed

Tensile: Min 665 MPa

Yiled: Min 240 MPa

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