1. A Guide to Understanding Steel Grit and Steel Shot www.shotblasting.org.in

2. A Guide to Understanding Steel Grit and Steel Shot The technique of sand blasting has provided many different ways to clean up, strip, or even out the surface of different materials. Although the ancient mode of blasting- sand has now long been banned for usage due to its dangerous silicosis, there is still a huge range of much safer substances that help to create a perfect finish- be it the restoring of parts of a structure or just basic refurbishing of smaller items.

3. Industries in the metal working business are the principal users of cast steel shot and steel grit: • Steel mills • Ferrous and Nonferrous Foundries • Forge shops • Metal Fabricators

4. Blast cleaning with the use of steel abrasives is a vital and critical operation at various different stages of the primary metal production. Steel Grit and Steel Shot are two sand blast medias that are most commonly used in today’s industries. These can be used for a huge variety of applications to meet different goal requirements. The following article will help you build a strong understanding about both these medias

5. What is Steel Grit? Steel Grit is available in a variety of shapes and sizes that will allow in administering a variety of blast profiles for obtaining different results. This type of grit is angular in nature they way it has been created. This grit is ideal for helping to remove the contaminants from the surface of various products and it also creates a last profile for new coating to adhere to. The most common uses for steel grit are removing of mill scale, removing different degrees of coatings from the surface of products and a typical grit sizes that are most commonly used range between G25 – G80. The larger the number of the grits, the smaller will be the size of the actual particle of blast media.

6. These smaller particles then create a smaller blast profile on to the product on the other hand the larger particles (the ones that have smaller G numbers) will create a deeper blast profile. In an addition to the depth of the blast profiles the larger particles will show more effectiveness in the removal of heavy amounts of paint while the smaller lot of particles will be best suited for removing contaminants on lighter surfaces. The smaller particles with larger number like G80 grit will leave a 1 to 2 Mil profile and larger particles like a G25 will leave deeper profiles that range between 4 to 6 mils (this finding stands true when, all the other blast equipment settings remain the same).

7. scale of about 8.0 that is similar to the hardness of the grit. This shot is used for a vast range of processes where the primary use for its application is referred to as shot surface of the product being blasted by repeated striking of the surface with steel shot. These repeated striking makes the metal to compress that increases its strength. Some of the most common applications for this effect known as shot peen the other areas of application that involve the use of such shot i maximum levels of energy transfer to effectively create a great sc profile. This includes applications such as concrete surface, rubber build up removal, epoxy and adhesive removal. What is Steel Shot? This shot is available in a variety of different sizes but is always designed in a round shape. This is a hard type of abrasive with a mohs scale of about 8.0 that is similar to the hardness of the grit. This shot is used for a vast range of processes where the primary use for its application is referred to as shot peening. Shot peeninghahrdens the surface of the product being blasted by repeated striking of the surface with steel shot. These repeated striking makes the metal to compress that increases its strength.

8. scale of about 8.0 that is similar to the hardness of the grit. This shot is used for a vast range of processes where the primary use for its application is referred to as shot surface of the product being blasted by repeated striking of the surface with steel shot. These repeated striking makes the metal to compress that increases its strength. Some of the most common applications for this effect known as shot peen the other areas of application that involve the use of such shot i maximum levels of energy transfer to effectively create a great sc profile. This includes applications such as concrete surface, rubber build up removal, epoxy and adhesive removal. Just like the grit, these shot offer a lot of uses before the needing replacement mostly allowing about 150 to 200 cycles, depending upon the application one is using these blasting techniques for and assuming that the professional uses the ideal blast media recovery equipment. The sizing of the shots made from steel come in a large variety of sizes that range between s 110 – s 330. In contrast to the grits, here the larger the number of the shot, the larger will be the size of the steel shot, which means a shot of size s 330 will be larger than s 110. The larger shot are used for the removal of thicker coatings and for heavier steel peening too

10. +(91)-(129)-2273192 MrRajanSikka(owner) +(91)-(129)-2273193 Plot No-53, Sec-27a Faridabad -121003 +(91)-(129)- 4046106 www.shotblasting.org.in rajansikka64@yahoo.com