Jalloy-S is the trade name of a group of constructional steels which combine high strength with welding and forming ease. They are available in three grades according to their minimum yield strength, namely, Jalloy-S-90, Jalloy-S-100, and Jalloy-S-110. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-144. Producer or source: Jones & Laughlin Steel Corporation.