ʻO ka uea keleawe he maikaʻi ka uila a me ka thermal conductivity, corrosion resistance a me ka mīkini waiwai, hiki ke welded a brazed.Loaʻa i ka emi ʻana o ka uila a me ka thermal conductivity haumia liʻiliʻi, ʻaʻole liʻiliʻi ka hopena o ka oxygen i ka uila a me ka thermal conductivity a me ka hoʻoili ʻana i nā waiwai, akā maʻalahi ke kumu o ka "maʻi hydrogen", ʻaʻole pono i ka wela kiʻekiʻe (e like me> 370 ℃) i ka hoʻohaʻahaʻa ʻana i ka hana lewa ( annealing, welding, etc.) a me ka hoʻohana.