Hoʻohālikelike ʻia mekila maʻamau, ʻO ke kila kūikawā ka ikaika kiʻekiʻe a me ka paʻakikī, nā waiwai kino, nā waiwai kemika, biocompatibility a me ka hana hana. Akā ʻo ke kila kūikawā kekahi mau ʻano like ʻole mai ke kila maʻamau. No ka meakila maʻamaunui ka poʻe i ʻoi aku ka hoʻomaopopo, akā no nā ʻano okila kūikawā, nui ka poʻe i ʻōlelo piʻoloke. No laila, ʻo ka ʻatikala e pili ana i nā hiʻohiʻona o nā kila kūikawā.
Nā hiʻohiʻona o ke kila kūikawā:
Hoʻohālikelike ʻia mekila maʻamau, He kila kūikawā nā hiʻohiʻona o ka maʻemaʻe kiʻekiʻe, ke kūlike kiʻekiʻe, ka hoʻolālā ultra-fine a me ka pololei kiʻekiʻe:
(1) Maʻemaʻe kiʻekiʻe.Hiki ke ho'ēmiʻia ka maʻiʻo o ke kinoea a me nā mea hoʻokomo (me nā metala me ka helu hoʻoheheʻe haʻahaʻa) i ke kila. Ke hoʻonuiʻia ka maʻemaʻe o ke kila i kahi palena,ʻaʻole hiki ke hoʻomaikaʻi nuiʻia nā waiwai kumu o ke kila, akā hiki ke hāʻawiʻia nā waiwai hou o ke kila. No ka laʻana, hoʻemi ʻia ka ʻike o ka oxygen i ka lawe ʻana i ke kila mai 30 × 10-6 a i 5 × 10-6, a hoʻonui ʻia ke ola ʻana e 30 mau manawa. ʻAʻole pale ʻia nā kila kila austenitic universal i ka corrosion stress ke hoʻemi ʻia ka ʻike phosphorus i 3 × 10-6. I ka hopena o ke kenekulia 20, ʻo ka pae maʻemaʻe (10) o ke kila i hiki ke hoʻokō ʻia e ka hana nui: hydrogen ≤1, oxygen ≤5, carbon ≤10, sulfur ≤10, nitrogen ≤15, phosphorus ≤25.

(2) Kaulike kiʻekiʻe.ʻO ka hoʻokaʻawale ʻana o ke kila e alakaʻi i ka ʻano like ʻole a me nā waiwai o ke kila, ʻo ia kekahi o nā kumu nui o ka hāʻule mua ʻana o nā ʻāpana kila a me ka paʻakikī i ka hoʻohana pono ʻana i nā waiwai kūpono o ke kila. Pono ka ʻenehana hana hou e hana i ke kūlike o ke kila: ʻo ke kaʻa kaʻa kila hardenability band fluctuation ʻo ± 3HRC; ʻO ka maʻiʻo o ka carbon, nickel, molybdenum ≤±0.01%, a me ka manganese a me ka chromium ≤±0.02% i hoʻomalu ponoʻia. ʻO ka nui o ka palaoa o ke kila ma hope o ke kinai ʻana he spherical a ʻo ka nui o ka fluctuation he 0.8± 0.2 μm. ʻO nā waiwai mechanical o ke kila waimaka laminated (Z-direction steel) i ka longitudinal, transverse a me ka mānoanoa, ʻoi aku ka nui o nā koi plastic a me ka paʻakikī.
(3) Hoʻolālā maikaʻi loa.ʻO ka hoʻoikaika ʻana i ka microstructure ultra-fine wale nō ka mea hoʻoikaika ikaika e hiki ke hoʻonui i ka ikaika o ke kila me ka emi ʻole a hoʻonui iki paha i ka paʻakikī. No ka laʻana, ke hoʻomaʻemaʻe ʻia ka nui o ka palaoa o ka ikaika kiʻekiʻe stainless steel AFC77 mai 60μm a i 2.3 μm, piʻi ka paʻakikī o ka haʻihaʻi Kic mai 100 a 220MPa·m. ʻO ka mahana o ka embrittlement irradiated o ka pā kila coarse-grained i loko o ka moku nuclear reactor pressure he 150 ~ 250 ℃ aʻo ka mea o ke kila maikaʻi ʻo 50 ~ 70 ℃. Ke maikaʻi ka nui o ka carbide i ke kila kila i ≤0.5μm, e hoʻomaikaʻi nui ʻia ke ola o ka lawe ʻana.
(4) Pono kiʻekiʻe.Pono e loa'a i nā kila kūikawā ka maika'i o ka ili a me ke ahonui haiki. ʻO ka pololei o ke koʻokoʻo kila i'ōwiliʻia a hiki i ± 0.1mm,ʻo ka mānoanoa o ka'ōwili pepa wela a hiki i ka ± 0.015 ~ 0.05mm, aʻo ka mānoanoa o ka'ōwili pepa anuanu a hiki i ± 0.003mm.