... relatively low electrical resistivity Heating Resistance Wire: OCr21Al4,OCr21Al6,OCr25Al5,OCr23Al5,1Cr13Al4,OCr21Al6Nb,Cr15Ni60,Cr20Ni80,Cr30Ni70 ... ,Cr20Ni30 etc.1)Heating Resistance Wire: We ... : Ferro-Chrome Alloys (Ferritic Alloys): OCr21AL4, OCr21AL6, OCr25AL5, OCr23AL5, 1Cr13AL4, OCr21AL6Nb, OCr27AL7Mo2. Nickel-Chrome Alloys ...