Ga siwo mexɔ dzo o siwo nye austenitic eve siwo kplɔ wo nɔewo ɖo .
300 Series Stainless Steel koŋ ye kpɔa eƒe austenitic structure to nickel tsɔtsɔ kpe ɖe eŋu me. Common 304 stainless steel kple 316L stainless steel nye nusiwo kplɔ wo nɔewo ɖo sia tɔ. 200 Series Stainless Steel xɔ ɖe manganese kple nitrogen teƒe le esi teƒe be woatsɔ nickel aɖo eteƒe, eye nickel si le eme la le sue ŋutɔ. Ga si mexɔ dzo o si nye 201 si bɔ kple gakpo si mexɔ dzo o 202 la nye esiwo kplɔ wo nɔewo ɖo sia tɔ.
300 Series Stainless Steel nye esiwo lolo wu. Austenitic gakpo si mexɔ dzo o si bɔ wu eye wòbɔ wue nye Type 304, si woyɔna hã be 18/8 alo A2. Nuwo abe 304 stainless steel products, nuɖanuwo kple nuɖanuwo. 316 Series Stainless Steel nye austenitic gakpo si mexɔ dzo o si kplɔe ɖo wu. Molybdenum aɖewo hã le abe 300 siwo kplɔ wo nɔewo ɖo, abe Type 316 ene me be woado tsitretsitsi ɖe acid ŋu ɖe ŋgɔ eye wòana tsitretsitsi ɖe amedzidzedze si le teƒe ɖeka ŋu nadzi ɖe edzi (abe pitting kple crevice corrosion ene).
Nitrogen ƒe kpeɖeŋutɔ si kɔ wu le 200 ƒe ƒuƒoƒoa me na wònye mɔ̃ɖaŋununya ƒe ŋusẽ si kɔ wu le 300 ƒe ƒuƒoƒoa me. Austenitic gakpo siwo mexɔ dzo o nye ƒomevi 309 kple 310 na dzoxɔxɔ gã si wozãna wu 800°C. Nɔnɔme siwo le 200 Series Stainless Steel: Togbɔ be crevice corrosion, 200 series la mete ŋu wɔa nu boo o wu 300 series be woaxe mɔ na pitting corrosion, si dzɔna le nuto siwo me tsi sɔ gbɔ ɖo kple chlorine me, kple crevice corrosion, si naa tsi ƒe tsitretsitsi kple acid sɔ gbɔ ɖe eme. Esia le alea elabena, be woaɖe nickel si le eme dzi akpɔtɔ la, ele be woaɖe chromium si le eme hã dzi akpɔtɔ, si ana woaɖe nusiwo xɔa dzo la dzi akpɔtɔ.
200 Series gakpo siwo mexɔ dzo o nye esiwo te ŋu nɔa te ɖe ŋusẽkpɔɖeamedzi nu eye wosẽna le dzoxɔxɔ si bɔbɔ gɔ̃ hã me. Zi geɖe la, wosẽna eye wosẽna wu 300 Series Steels, vevietɔ le esi woƒe nitrogen sɔ gbɔ ɖe eme ta, si wɔa dɔ abe ŋusẽdoamenu ene. Esi wonye austenitic ta la, 200 kple 300 series steels mexɔ asi o. Gake 200 series steel ƒe wɔwɔme (ductility) le sue wu 300 series steel tɔ, togbɔ be woate ŋu ana esia nanyo ɖe edzi to akɔbli dede eme me hã.
Alloy 20 (Akpakpa 20) nye austenitic gakpo si mexɔ dzo o si te ŋu nɔa te ɖe dzoxɔxɔ sulfuric acid kple nuto bubu geɖe siwo me wowɔa adã le nu nyuie eye wòte ŋu dzea gakpo ƒomevi 316 dzi bɔbɔe. Alloy la ɖea tsitretsitsi nyuie ɖe nuteɖeamedzi ƒe xɔxlɔ̃ ƒe gbagbã ŋu fiana le 20-40% sulfuric acid si le ƒoƒom me. Mɔ̃ɖaŋununya ƒe nɔnɔme nyuiwo le Alloy 20 si eye niobium ƒe anyinɔnɔ le akɔbli me ɖea carbide ƒe tsidzadza dzi kpɔtɔna le welding me. Le nu vovovowo ƒe nɔnɔme vovovoawo nu la, ele be aɖakaawo ƒe ɖoɖowɔwɔ kple wo mama hã nato vovo, ale be woate ŋu akpɔ mɔɖeɖe ɖe nu ŋu le sue wu eye woate ŋu akpɔ alesi wowɔa nu nyuie. Eyata, Hangao Tech (Seko Mɔ̃wo) aɖo dze kpli wo ɣesiaɣi tso parameter vovovowo ŋu kaba ale si woate ŋui, le nyabiasewo xɔxɔ tso asisiwo gbɔ vɔ megbe, ale be woana asisiwo nakpɔ egbɔkpɔnu siwo de pɛpɛpɛ wu le . Stainless gakpo dɔwɔƒe pɔmpi wɔwɔ line tube mill mɔ̃ siwo kpɔa nuwɔwɔ ƒe hiahiã ŋutɔŋutɔwo gbɔ.
Woate ŋu ado austenitic gakpo siwo mexɔ dzo o kpɔ to dodokpɔ siwo megblẽa nu o zazã me to amadede ƒe gege ɖe eme ƒe ŋkuléle ɖe nu ŋu ƒe mɔnuwo zazã me, alo woazã eddy current dodokpɔ, gake menye to magnetic particle inspection methods me o.
