Chemical composition (c)0.70-1.20% (mn)0.35-1.20% Si)0.40-1.20% (s)less than0.05% (p)less than0.05% Hardness Normal 40-50hrc Special 52-60hrc Durality 2000-2800 times Microstructure tempered martensite or sobite Density 7.4g/cm3 Bulk density 4.4g/cm3 Application Blast cleaning of cast steel shot:used for blast cleaning of casting, die-casting, forging, sand removal of casting, steel plate, h type steel, steel structure. Rust removal of cast steel shot:rust removal of casting, forging, steel plate, h type steel, steel structure, descaling of forging. Shot peening of cast steel shot:shot peening of gear, heat treatment. Shot blasting of cast steel shot:shot blasting of profile steel, ship board, steel board, steel material. Shot blasting of cast steel shot:shot blasting of steel board, profile steel, steel structure. Pre-treatment of cast steel shot:pre-treatment of surface, steel board, profile steel, steel structure, before-painting. Application devices Steel shot mainly used for the following equipment including rotary barrel shot blasting machine, chain type shot blasting machine, pedrail type shot blasting machine, pass_through shot blasting machine, table type shot blasting machine, pendent-chain & pile-type shot blasting machine, trolley type shot blasting machine, abrator, abrator equipment, shot peening machine, shot peening equipment, sandblasting machine, sandblasting equipments, steel material pretreatment production line, steel plate pretreatment production line, steel structure pretreatment production line. 25kgs/bag, 40 bags/pallect