Abstract
With some sixteen market wires of Ni-Cr and of Ni-Cr-Fe type, the effects of some factors on strength and electrical resistance were studied.
The strength and electrical resistance were found to vary a great extent both at room and elevated temperatures although difference in chemical composition was very slight. It is also shown that the tensile strength and the electrical resistances were influenced much more by working conditions and heat treatment than by chemical compositions. Surface defects, working ratio and crystal structures have great influence on the life of the wire.
