![]() They should be as resistant as possible to breakage from shock-impact, or by abrasion during shipment and handling. Glass beads used for peening shall be made from high quality glass of the soda-lime type. The glass bead classification number is the approximate nominal diameter of the glass spheres in that classification, in hundredths of a millimeter, with the prefix GB added. This specification covers the characteristics of glass beads used for peening, and provides for standard glass bead size numbers. In the SAE International J1173 spec, published on September 1st, 1988, the following applies: This spec was approved on June 7th, 1989. The MIL-S-13165C spec is for for glass beads used for shot peening of metal parts, approved for use by all Departments and Agencies of the Department of Defense. This spec was approved on September 26th, 2005. The MIL-PRF-9954B spec is for glass beads used for cleaning and peening, approved for use by all Departments and Agencies of the Department of Defense. ![]() 8 is the most commonly used glass bead size. ![]() The most commonly used glass bead sizes are highlighted. Glass beads can usually be re-cycled 30 times under normal use. For delicate metal or thin welds, peening with glass beads can provide the right amount of stress relief without going overboard and causing damage. In industrial blast cabinets, glass beads are for removing small burrs, cleaning, peening, honing, polishing, blending, and finishing. Much like you would use different grades of sandpaper for different jobs, you would want to use different sizes of glass beads for different levels of blasting. Glass beads used in abrasive blasting are come in different sizes and diameters. Use the glass bead media size chart below to see what sizes correspond to each brand and spec. All of the bead blasting cabinets at Raptor Blasting Systems can use glass beads. Glass beads are a common abrasive blast media used in abrasive blasting.
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