ʻO ka Density kekahi o nā waiwai he nui o ke kila.Ua helu ʻia ma ka puʻunaue ʻana i ka nuipaʻa me ka leo.Hele mai ke kila ma nā ʻano like ʻole.Hoʻopili ʻia ka Density ma ka puʻunaue ʻana i ka nuipaʻa me ka leo.ʻO ka nui o ke kila kalapona ma kahi o 7.85 g/cm3 (0.284 lb/in3).

Nui nā hoʻohana no ke kila.ʻO ke kila kila, no ka laʻana, hoʻohana ʻia no nā mea hana ʻoki a me nā mea kīhini.He ʻano kila ia i loaʻa nā pae kalapona haʻahaʻa a ma kahi o 10.5% o ka chromium.ʻO kēia ka hopena i ka pale ʻana i ka corrosion.ʻO kekahi ʻano kila, ʻo ia hoʻi ke kila mea hana, hoʻohana ʻia no nā mea ʻoki metala a me nā ʻāpana drill no ka mea paʻakikī, akā palupalu.ʻO ka nui o ke kalapona i ke kila kalapona e hoʻoholo i ka paʻakikī o ke kila.ʻOi aku ka nui o ke kalapona i loko, ʻoi aku ka paʻakikī o ke kila.Hoʻohana pinepine ʻia ke kila kalapona no nā ʻāpana kaʻa.

He nui ka hoʻohana ʻana o ke kila a me kona mau ʻano like ʻole a puni ka honua.ʻO ke ʻano o ke kila e pili ana i kāna ʻike, e hopena i nā ʻano like ʻole.I ka hapanui o nā hihia, ʻoi aku ka paʻakikī o ke kila.(ʻO ka ʻumekaumaha kikoʻī a i ʻole ka mānoanoa pili ka ratio o ka mānoanoa o kahi mea me ka wai.)

ʻElima mau papa nui o nā kila: ke kila kalapona, ke kila kila, ke kila haʻahaʻa haʻahaʻa ikaika, ke kila kila a me ke kila mea hana.ʻO nā kila kalapona ka mea maʻamau, loaʻa nā ʻano kalapona like ʻole, hana i nā mea āpau mai nā mīkini a hiki i nā puna moe a i nā pine bobby.Loaʻa i nā kila kila ka nui o ka vanadium, molybdenum, manganese, silicon a me ka cooper.ʻO nā kila huila e hana i nā mea hana, nā pahi kālai a me nā kāmaʻa holo wāwae.He chromium, nickel nā mea hao ʻē aʻe e hoʻomau i ko lākou kala a me ka hopena i ka ʻōpala.ʻO nā huahana kila kila nā paipu, nā capsules space, nā mea hana ʻokiʻoki i nā lako kīhini.ʻO ka mea hope akā ʻaʻole ka mea liʻiliʻi loa, loaʻa i nā kila mea hana tungsten, molybdenum i waena o nā mea hoʻohui.Hoʻokumu kēia mau mea i ka ikaika a me ka hiki o nā huahana kila mea hana, e komo pū ana i nā ʻāpana no nā hana hana a me nā mīkini.