Kai Tai Steel Shot Abrasive (Hong Kong) Co.,Ltd is a professional manufacturer of steel shot, steel grit, and steel cut wire shot etc. Products details are as follows. 1.)Steel shot S70,S110,S170,S230,S280,S330,S390,S460,S550,S660,S780 Hardness: 40-60HRC Density: 7.4g/cm3 Steel grit, G10,G12,G14,G16,G18,G25,G40,G50,G80,G120 Hardness: GP 46-50HRC GL 56-60HRC GH 63-66HRC Density: 7.6g/cm3 Chemical compositions C 0.7-1.20 Mn 0.60-1.20 Si 0.4 -1.2 S <=0.05 P <=0.05 Microstructure: Homogeneous tempered Martensite or Sorbite. Standard: In accordance with SFSA20-66 CAST STEEL ABRASIVES, SAEJ827 CAST STEEL SHOT, SAE J1993 HIGH CARBON STEEL GRIT. 2.) Field of application: Sand cleaning and rust removing, descaling and surface intensification in the industries of machinery, ship building, container making, steel structure, vehicle and locomotive, forgings, etc. 3.)Our company has adopted the second quenching and low tempering technology. We have 10 medium frequency induction furnaces, the melting steel are quenched by centrifugal atomizing machines, four warm air dryers, and four large sized tempering systems, 9 quenching furnaces. We are equipped with superior inspection equipments like fatigue life tester imported from USA Ervin Company and direct-reading spectrometer from Germany. We assure you the stable supply, punctual delivery, guaranteed quality and best service. 4.) For more information, please feel free to contact Miss Vivian. Skype viviankaitai