{"id":13097,"date":"2024-08-06T16:16:43","date_gmt":"2024-08-06T16:16:43","guid":{"rendered":"https:\/\/haynesintl.com\/alloys\/%e5%90%88%e9%87%91%e7%9b%ae%e5%bd%95\/%e9%ab%98%e6%b8%a9%e5%90%88%e9%87%91\/haynes-hr-224\/"},"modified":"2025-06-04T18:04:03","modified_gmt":"2025-06-04T18:04:03","slug":"haynes-hr-224-%e5%90%88%e9%87%91","status":"publish","type":"alloys","link":"https:\/\/haynesintl.com\/zh-hans\/alloys\/%e5%90%88%e9%87%91%e7%9b%ae%e5%bd%95\/%e9%ab%98%e6%b8%a9%e5%90%88%e9%87%91\/haynes-hr-224-%e5%90%88%e9%87%91\/","title":{"rendered":"HAYNES\u00ae<\/sup> HR-224\u00ae<\/sup> \u5408\u91d1"},"content":{"rendered":"\n
\n

Principal Features<\/h2>\n\n\n\n

Haynes International, Inc. is pleased to announce the development of HAYNES\u00ae<\/sup> HR-224\u00ae<\/sup> alloy, a new alloy with excellent oxidation resistance and improved fabricability and weldability compared to HAYNES\u00ae<\/sup> 214\u00ae<\/sup> alloy. This Ni\u201327.5Fe\u201320Cr\u20133.8Al alloy achieves superior oxidation resistance through the formation of a tightly adherent alumina protective scale. It exhibits excellent ductility and formability characteristics, with weldability on par with nickel-iron-chromium alloys of substantially lower aluminum contents. Potential uses include applications in heat recuperators, automotive catalytic converters and heat shields, strand annealing furnace tubulars, and other severely oxidizing environments.<\/p>\n\n\n\n

*Please contact our technical support team<\/a> if you have technical questions about this alloy.<\/p>\n<\/div><\/div>\n\n\n\n

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Nominal Composition<\/h2>\n\n\n\n
\n
\n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n Weight % <\/td>\n <\/tr>\n
\n Nickel <\/td>\n \n 47 Balance <\/td>\n <\/tr>\n
\n Cobalt <\/td>\n \n 2 max. <\/td>\n <\/tr>\n
\n Iron <\/td>\n \n 27.5 <\/td>\n <\/tr>\n
\n Chromium <\/td>\n \n 20 <\/td>\n <\/tr>\n
\n Molybdenum <\/td>\n \n 0.5 max. <\/td>\n <\/tr>\n
\n Tungsten <\/td>\n \n 0.5 max. <\/td>\n <\/tr>\n
\n Manganese <\/td>\n \n 0.5 max. <\/td>\n <\/tr>\n
\n Silicon <\/td>\n \n 0.3 <\/td>\n <\/tr>\n
\n Columbium <\/td>\n \n 0.15 max. <\/td>\n <\/tr>\n
\n Aluminum <\/td>\n \n 3.8 <\/td>\n <\/tr>\n
\n Titanium <\/td>\n \n 0.3 <\/td>\n <\/tr>\n
\n Carbon <\/td>\n \n 0.05 <\/td>\n <\/tr>\n
\n Boron <\/td>\n \n 0.004 max. <\/td>\n <\/tr>\n
\n Zirconium <\/td>\n \n 0.025 max. <\/td>\n <\/tr>\n <\/table>\n<\/div>