Specification :

S780/ SS2.5 S660/ SS2.0 S550/ SS1.7 S460/ SS1.4 S390/ SS1.2 S330/ SS1.0 S280/ SS0.8 S230/ SS0.6 S170/ SS0.5 S110/ SS0.3
In accordance with standards of GB/ T18838.3-2008 Steel Shot and Steel Grit, SFSA20-66Cast Steel Abrasive, SAE J827 Cast Steel Shot, SAE J1993High Carbon Steel Grit, YB/ T5149-1993 Cast Steel Shot, YB/ T5150-1993Cast Steel Grit, ISO11124-3High Carbon Cast Steel Shot and Grit.
The Major Technological Index: Products Steel Shot
Chemical Composition C 0.70-1.20%
Mn 0.35-1.20%
Si 0.40-1.20%
S d0.05%
P d0.05%
Micro hardness Normal: 40-50HRC ( 377-09HV)
Special: 52-56HRC ( 543-620HV)
Special: 56-60HRC ( 620-713HV)
Hardness Deviation Max Deviation ± 3.0HRC
Microstructure Tempered Martensite or Sorbite
Density 7.2g/ cm3