Steel Grit G40,
Chemistry Composition:
C: 0.70-1.20%
Mn: 0.60-1.20%
Si: 0.40-1.20%
S: 0.05%max
P: 0.05%max
Average degree of hardness:
GP Steel Grit: 42-50HRC (399-509HV)
GL Steel Grit: 56-60HRC (620-713HV)
GH Steel Grit: 63-66HRC (795-889HV)
Minimum density: 7.4 g/cm³