HPS 100W is specified in ASTM A 709 (Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges) and is being added to AASHTO M270. Initial applications were planned to be those in which an owner bridge engineer would approve the use of HPS 100W. This steel would be most useful for depth control over piers in long-span girder bridges or controlling the size of high-stressed elements in long-span steel truss bridges. This datasheet provides information on composition and tensile properties. It also includes information on forming and joining. Filing Code: SA-555. Producer or source: International Steel Group Inc.