Common Trade Names: Hastelloy X®, Nickelvac® HX, Microfer® 4722, Altemp® HX, Inconel® HX, Nicrofer 4722 Co, Pyromet Alloy 680

Lamineries MATTHEY SA produces Alloy X in precision cold-rolled product forms (strip and sheet). Alloy X is an austenitic nickel base alloy containing approximately 22 percent chromium for outstanding resistance to oxidation at high temperatures. Alloy X is designated as UNS N06002 / W. Nr ~2.4665 / ~2.4613 and is listed in NACE MR-01-75. Specifications for Alloy X in forms of sheet or strip include the following: ASTM B435, AMS 5536, ISO 6208 and AECMA PrEn2185.

Typical uses
Alloy X is used for components in combustion chambers of gas turbine engines (such as transition ducts and combustor cans), as well as in afterburners and tailpipes in aircraft and land-based gas turbine engines. Additionally it is used for fans, roller hearths and support members in industrial furnaces, catalyst support grids, and in nuclear engineering. In thin gauge strip and sheet, Alloy X is used as many types of membranes or formed sheet metal components for applications where its unusual resistance to oxidizing and reducing atmospheres, as well as its high temperature strength are necessary.