ʻO nā fencontel 601 mau flanges i hanaʻia o Noichrome. ʻO kāna papa helu helu likeʻole me ka ratio hoʻokūkū. ʻO ka hoʻohuiʻana o ka papa 601ʻo 58% nickel, 21% Chromal, carbon,ʻo ka mea kanu,ʻo ka mea kanu a hao hoʻi. A he likeʻole nāʻano likeʻole e like me ka paleʻana i ka palaoa, akā, ka palaoaʻana i ka flange, inctoel 601 slage a pēlā aku. Ua ikaika ikaika nā hoʻopaʻiʻana i kēia mea, e ho'ēmi i nā acids a me ka ho'ēmiʻana, aʻoi aku ka paʻakikī e pale aku i nāʻano he nui.