35x20x3/4/5mm 100% boron carbide nozzle for sand blasting, sand blasting nozzles, sand blasting machine nozzle, AM boron carbide sand blasting nozzle is a kind of hard and ware-resisting blasting nozzle. it can work in limit low and high temperature environment, right now boron carbide material are slowly instead of tungsten carbide blasting nozzle and silicon carbide blasting nozzle. Below is the working life and these three kind of blasting nozzle when use different blasting media material steel shot steel grit quartz sand glass beads silicon carbide blasting nozzle 20-40hrs 30-50hrs 40-50hrs 100-300hrs tungsten carbide blasting nozzle 100-200hrs 150-260hrs 200-280hrs 500-1500hrs boron carbide blasting nozzle 600-1200hrs 900-1400hrs 1400-1900hrs 2100-2400hrs boron carbide blasting nozzle density:2.46g/cm3 ID:3-12MM OD:15-20MM Length:35-110mm if you have special request you can send us your drawing to get price from us