Jessop No. 9 is a non-magnetic super high tensile steel having exceptionally high toughness and wear resistance. It is recommended for heavy earth moving equipment subject to severe battering. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-158. Producer or source: Jessop Steel Company.