Carpenter No. 1-JR is a low cost oxidation-resistant steel which offers an excellent combination of electrical resistance and scale resistance. It is primarily used as an electrical resistant material, but is also used as a magnetic core material where resistance to oxidation and corrosion are required. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-144. Producer or source: Carpenter.