ʻO ka kila stiinless he'āpana hao o ka hao e paleʻia ana i ka wikiwiki. Aia ma ka liʻiliʻi he 11% chromium a loaʻa paha i nā mea e like me ke carbon, nā mea'ē aʻe a me nā mentals'ē aʻe a me nā metala'ē aʻe e loaʻa ai nā waiwai'ē aʻe. ʻO ke kū'ēʻana o ka ceraelless i nā hualoaʻa i nā huapalapala mai ka chromium, kahi e hana ai i ke kiʻi kiʻi e hiki ai ke pale i keʻano o ka oxygen.
Hiki i kahi flange ke pā i ka uhi no ka uhiʻana a iʻole paniʻana i ka hopena o kahi paipa. Ua kapaʻia kēia he ahi makapō. No laila, manaʻoʻia nā flanges e lilo i nā'āpana kūloko i hoʻohanaʻia e kākoʻo i nā'āpana mechanical.