{"id":6779,"date":"2024-09-12T10:27:12","date_gmt":"2024-09-12T10:27:12","guid":{"rendered":"https:\/\/haynesintl.com\/?page_id=6779"},"modified":"2025-08-05T17:44:20","modified_gmt":"2025-08-05T17:44:20","slug":"high-temperature-alloys-for-industrial-applications","status":"publish","type":"page","link":"https:\/\/haynesintl.com\/en\/high-temperature-alloys-for-industrial-applications\/","title":{"rendered":"High-temperature Alloys for Industrial Applications"},"content":{"rendered":"\n

Since 1912, Haynes International has concentrated on the production of special alloys. The original product, cobalt-based metal-cutting tools, provided a natural entry into the high-temperature alloy field at mid-century with the advent of commercial jet engines. Cast blades and vanes of HAYNES\u00ae<\/sup>\u00a0cobalt-based alloys 21, 23, and 31 contributed to the success of early jet engines.<\/p>\n\n\n\n

HASTELLOY\u00ae<\/sup>\u00a0X alloy, a Haynes International developed nickel-based alloy, has become the standard by which other high-temperature alloys are measured. It was one of the company’s most successful products and remains an industry workhorse. Newer alloys, such as HAYNES\u00ae<\/sup>188 alloy and the alloys listed below, are following in its footsteps. The most significant aspect of 188 alloy is the use of lanthanum, a rare earth metal. Very small additions of the rare earth metal provide an order-of-magnitude increase in the oxidation resistance of both nickel- and cobalt-based alloys. Yttrium, another rare earth metal, has had a similar enhancement effect on alloys. Similar rare earth additions are used in HAYNES\u00ae<\/sup>\u00a0230\u00ae<\/sup>\u00a0alloy, a recently developed nickel-chromium-tungsten-molybdenum alloy, that combines excellent high-temperature strength, outstanding resistance to oxidizing environments up to 2100\u00b0F (1150\u00b0C), premier resistance to nitriding environments, and excellent long-term thermal stability.<\/p>\n\n\n\n

Today, industrial heating applications for HAYNES\u00ae<\/sup>alloys are becoming a very significant part of the overall business which also includes aircraft\/aerospace and the world-renowned HASTELLOY\u00ae<\/sup> corrosion-resistant alloys for the chemical process industry.<\/p>\n\n\n\n

Thermal Processing alloys<\/h3>\n\n\n\n

HAYNES\u00ae<\/sup> HR-120\u00ae<\/sup><\/h4>\n\n\n\n
\n \n\n \n \n \n \n \n \n \n \n \n \n \n
\n Nickel <\/td>\n \n Balance <\/td>\n \n Combines excellent strength and carburization resistance with good resistance to oxidation and relatively low-cost.(UNS N08120) <\/td>\n <\/tr>\n
\n Iron <\/td>\n \n Balance <\/td>\n \n <\/td>\n <\/tr>\n
\n Chromium <\/td>\n \n 25 <\/td>\n \n <\/td>\n <\/tr>\n
\n Cobalt <\/td>\n \n 3 max. <\/td>\n \n <\/td>\n <\/tr>\n
\n Niobium* <\/td>\n \n 0.7 <\/td>\n \n <\/td>\n <\/tr>\n
\n Manganese <\/td>\n \n 0.7 <\/td>\n \n <\/td>\n <\/tr>\n
\n Silicon <\/td>\n \n 0.6 <\/td>\n \n <\/td>\n <\/tr>\n
\n Nitrogen <\/td>\n \n 0.2 <\/td>\n \n <\/td>\n <\/tr>\n
\n Aluminum <\/td>\n \n 0.1 <\/td>\n \n <\/td>\n <\/tr>\n
\n Carbon <\/td>\n \n 0.05 <\/td>\n \n <\/td>\n <\/tr>\n
\n Boron <\/td>\n \n 0.004 <\/td>\n \n <\/td>\n <\/tr>\n <\/table>\n<\/div>