Stainless Steel Cut Wire Shot SUS304 / SUS430 Size: 0.3mm-3.0 mm Durability:6500 Times MOQ: 25kgs Usage: shot blasting;shot peening;surface cleaning, rust remove,surface treatment Hardness: 308-509 HV (32-50HRC) Chemical Composition: C: <= 0.15%; Gr: 16-18%;Si: <=1%; Mn: <= 1% Microstructure: Ferrite Type Density: 7.8g/cm3