Grade | Hardness HRA | Density g/cm3 | TRS |
YG6 | 91 | 14.6-15.0 | 1700 |
YG8 | 89 | 14..4-14.8 | 1800 |
Grade | Diameter Variation | Spherical Form | Surface Roughness | Diameter Tolerance | Lot Diameter Variation | |||||
μm | inch | μm | inch | μm | inch | μm | inch | μm | inch | |
G3 | 0.0762 | 0.000003 | 0.0762 | 0.000003 | 0.0127 | 0.0000005 | 0.762 | 0.00003 | 0.127 | 0.000005 |
G5 | 0.127 | 0.000005 | 0.127 | 0.000005 | 0.02 | 0.0000008 | 0.127 | 0.000005 | 0.254 | 0.00001 |
G10 | 0.254 | 0.00001 | 0.254 | 0.00001 | 0.0254 | 0.000001 | 2.54 | 0.0001 | 0.508 | 0.00002 |
G15 | 0.381 | 0.000015 | 0.381 | 0.000015 | 0.0254 | 0.000001 | 2.54 | 0.0001 | 0.762 | 0.00003 |
G25 | 0.635 | 0.000025 | 0.635 | 0.000025 | 0.0508 | 0.000002 | 2.54 | 0.0001 | 1.27 | 0.00005 |
G50 | 1.27 | 0.00005 | 1.27 | 0.00005 | 0.0762 | 0.000003 | 7.62 | 0.0003 | 2.54 | 0.0001 |
G100 | 2.54 | 0.0001 | 2.54 | 0.0001 | 0.127 | 0.000005 | 12.7 | 0.0005 | 5.08 | 0.0002 |
G500 | 12.7 | 0.0005 | 12.7 | 0.0005 | - | - | 50.8 | 0.002 | 25.4 | 0.001 |
G1000 | 25.4 | 0.001 | 25.4 | 0.001 | - | - | 127 | 0.005 | 50.8 | 0.002 |