Ɔhyew-Esistant Steel yɛ dade soronko bi a ebetumi akura ahoɔden, oxidation resistance ne creep resistance wɔ ɔhyew a ɛkɔ soro tebea horow mu. Wɔde di dwuma kɛse wɔ ahoɔden, nnuruyɛ adwuma, ahunmu ne mfuw afoforo mu. Sɛnea nnuru ahorow a ɛwɔ mu ne adwumayɛ kyerɛ no, wobetumi akyekyɛ ɔhyew-aduru a ɛko tia no mu ayɛ no ahorow pii, ɔkwan biara a wɔfa so yɛ adwuma no fata ma adwumayɛ tebea ahorow. Ɔhyew a ɛwɔ mu no nkyekyɛmu-ɛko tia dade no boa nnwumakuw ma wɔpaw nneɛma no pɛpɛɛpɛ na ɛma nnwinnade asetra ne ahobammɔ a ɛwɔ nnwinnade mu no tu mpɔn.
Sɛnea nnuru a ɛwɔ mu kyerɛ no, ɔhyew{0}}ɛko tia dade no titiriw mu abiɛsa: chromium-molybdenum dade, austenitic ɔhyew-a ɛko tia dade ne ferritic ɔhyew-ɛko tia dade. Chromium-Molybdenum dade ne ɔhyew a ɛtaa ba-ɛko tia dade. Ɛwɔ chromium ne molybdenum elements a ɛkorɔn, ɛwɔ papa a ɛkorɔn-temperature ahoɔden ne oxidation resistance, na ɛfata ma medium-temperature environments te sɛ boilers ne pressure vessels. Austenitic Heat-Sydeɛ a ɛko tia no de nickel ne chromium di dwuma sɛ nneɛma titiriw a wɔde afrafra, te sɛ 310s, 309s ne adesua afoforo. Ɛwɔ sorokɔ a ɛkorɔn-temperature oxidation resistance ne corrosion resistance na wɔtaa de di dwuma wɔ soro-temperature fononoo tubes, ɔhyew sesa ne nnwinnade afoforo. Ferritic heat-esakyera dade no wɔ chromium a ɛdɔɔso, nanso nikel a ɛba fam, na ɛho ka sua koraa. Ɛfata sɛ wɔde fononoo a wɔde yɛ hyew ne ɔdan a wɔde hyew nneɛma wɔ dan mu wɔ ɔhyew a ɛba fam mu.
Sɛnea wɔde ɔhyew ne adwumayɛ su di dwuma no, ɔhyew{0}}ɛko tia dade nso betumi akyekyɛ mu ayɛ no-agya ɔhyew-a ɛko tia dade, medium-agya ɔhyew-a ɛko tia dade ne ade a ɛkorɔn-agya ɔhyew-ɛko tia dade. Low-Alloy heat-wɔtaa de dadeɛ a ɛko tia no di dwuma wɔ adwumayɛ tebea a ɛwɔ 500℃ase , te sɛ 15crmo, 12cr1mov, ne nea ɛkeka ho, na wɔde di dwuma titiriw ma medium-temperature pipelines wɔ petrochemical ne power industries mu. Medium-Alloy heat-Stinsical steel no fata ma high-temperature environments of 600-800℃, te sɛ 2.25cr{{25}1mo steel, a wɔde di dwuma kɛse wɔ hydrogenation reactors ne petrochemical nnwinnade mu. High-alloy heat-senthost dadeɛ te sɛ Inconel series (te sɛ Inconel 600, 625) ne Hastelloy series betumi akura adwumayɛ a ɛyɛ den mu wɔ mmeaeɛ a ɛhɔ yɛ hyeɛ a ɛboro 1000℃, na wɔde di dwuma titire wɔ mmeaeɛ a ɛkorɔn te sɛ wimhyɛn engine ne gas turbines.
Bio nso, wobetumi akyekyɛ ɔhyew-aduru a ɛko tia mu nso ayɛ no pearlite ɔhyew-a ɛko tia dade, martensite ɔhyew-a ɛko tia dade ne austenite ɔhyew-a ɛko tia dade sɛnea microstructure no te. Pearlite heat-wɔde dadeɛ a ɛko tia no di dwuma titire wɔ medium-temperature environments mu, berɛ a martensite heat-ɛko tia dadeɛ ma ahoɔden tu mpɔn denam ɔhyeɛ a wɔde yɛ adwuma so na ɛfata ma High-temperature fasteners ne nneɛma foforɔ.
Ɔhyew-aduru a ɛko tia ɔhyew no nkyekyem yɛ nea ɛyɛ den na egu ahorow. Ɛsɛ sɛ nnwumakuw paw nneɛma a ɛfata sɛnea ɔhyew pɔtee a wɔde yɛ adwuma, nsɛe tebea ne ɛka a wɔbɔ no te. Ɛnyɛ sɛ nneɛma a wɔpaw no yiye no betumi ama nnwinnade no adwumayɛ atu mpɔn nko, na mmom ɛbɛtew ɛka a wɔbɔ wɔ nsiesie ho no so, na ama sikasɛm mu mfaso kɛse aba nnwumakuw so.
