... : Lump Dimensions: 5-50MM, 90%min Chemical Composition: B,Si,C,Al,P,S Ferro boron is applied to ... in other applications. The most important function of Boron is we just need ultra low volume of boron to improve ... . In addition, it can improve mechanical properties of your product, cold deformation, welding properties and high temperature properties etc.Packaging & Delivery Packaging Detail: ...