Shot Executive standard: ?????? We strictly according to national standard "GB / T18838.3-2008 high carbon steel shot and grit," American steel association "SFSA20-66 steel abrasive standards", the American Society of Automotive Engineers "SAE J827 standard steel balls", People's Republic of China black metallurgy profession "YB / T5149-93 steel balls," the US military standard "MIL-S-851 cleaning and reinforcing metal grit and steel shot standards" and international standardization organization "ISO11124-3 standard high carbon steel shot casting sand standards" to produce. ? Shot major technical indicators:? Name (Shot) steel balls chemical composition of carbon (C) 0.70 ~ 1.20% manganese (Mn) 0.35 ~ 1.20% of silicon (Si) 0.40 ~ 1.20% sulfur (S) ≤0.05% phosphorus (P) ≤0.05% average hardness (measured at 500g load) General: 40 ~ 50HRC (377 ~ 509HV) Special:? 52 ~ 56HRC (543 ~ 620HV) Special:?? 56 ~ 60HRC (620 ~ 713HV) Hardness Deviation Maximum deviation ± 3.0HRC uniform or ± 40HV Microstructure of tempered martensite or tempered troostite + dispersed (alcohol displacement method) carbide minimum density of 7.2g / cm3 Shot range of applications: 1, Cleanup: shot blasting, shot blasting, casting cleaning, shot blasting castings, forgings shot blasting, shot blasting casting sand forgings, plate cleaning, steel cleaning, cleaning up steel, H-beam cleaning, steel cleaning. 2, rust: shot blasting, abrasive blasting, casting rust, forging rust, steel rust, forging descaling rust steel, H-shaped steel rust, steel rust. 3, strengthen: shot peening, heat-treated pieces shot peening, shot peening gear. ? 4, Shot: steel shot, steel sandblasting, ship blasting, steel shot, steel shot. ? 5, Shot: steel blasting, steel shot blasting, steel shot blasting. ? 6, playing sand: sand processing. ? 7, Shot pretreatment: coating pre-treatment, coating pretreatment, surface preparation, ship pretreatment, pretreatment steel, steel pretreatment, pretreatment steel, steel processing before. Shot For: Shot mainly applied to roller, chain, hook type, crawler, by type, rotary, product release type, stepper type, trolley type shot blasting machine (shot blasting), shot blasting machine, shot blasting equipment, shot blasting machine, spray blasting, shot peening equipment, sandblasting machine, blasting equipment, blasting equipment, steel pretreatment production line, steel plate pretreatment production line, steel pretreatment production line, Sand room equipment. ?