HK – 0
Rough-finishing grade
Size : 311 x 622 x 1245
311 x 622 x 2146
Specific Gravity 1.80
Specific Resistance (µΩm)12.0
Flexural Strength (Mpa) 39.0
Shore Hardness 56.0
Average Grain Size (µm) 13.0
Surface Finish (VDI) 36.0
Ra (µm) 6.3
HK – 1
Rough-finishing grade
Size : 311 x 622 x 1245
234 x 649x 800
175 x 690 x 800
Specific Gravity 1.85
Specific Resistance (µΩm)11.0
Flexural Strength (Mpa) 50.0
Shore Hardness 58.0
Average Grain Size (µm) 11.0
Surface Finish (VDI) 30.0
Ra (µm) 3.2
HK – 15
Precision-finishing grade
Size : 235 x 467 x 1245
311 x 622 x 622
Specific Gravity 1.83
Specific Resistance (µΩm)12.5
Flexural Strength (Mpa) 53.9
Shore Hardness 62.0
Average Grain Size (µm) 7.0
Surface Finish (VDI) 27.0
Ra (µm) 2.2
HK – 2
Precision-finishing grade
Size : 235 x 467 x 1245
217x 597x 742
311 x 622 x 622
Specific Gravity 1.82
Specific Resistance (µΩm)13.5
Flexural Strength (Mpa) 63.7
Shore Hardness 64.0
Average Grain Size (µm) 7.0
Surface Finish (VDI) 24.0
Ra (µm) 1.62
HK – 20
Precision-finishing grade
Size : 311 x 622x 622
Specific Gravity 1.86
Specific Resistance (µΩm)12.0
Flexural Strength (Mpa) 65.0
Shore Hardness 60.0
Average Grain Size (µm) 6.0
Surface Finish (VDI) 22.0
Ra (µm) 1.26
HK – 75
High-Precision finishing grade
Size : 230 x 455 x 1245
215x 590x 740
311 x 622 x 622
Specific Gravity 1.82
Specific Resistance (µΩm)16.5
Flexural Strength (Mpa) 65.7
Shore Hardness 72.0
Average Grain Size (µm) 4.0
Surface Finish (VDI) 20.0
Ra (µm) 1.0
HK – 6
Ultra-Precision finishing grade
Size : 120 x 310x 470
Specific Gravity 1.86
Specific Resistance (µΩm)12.0
Flexural Strength (Mpa) 85.0
Shore Hardness 68.0
Average Grain Size (µm) 3.0
Surface Finish (VDI) 18.0
Ra (µm) 0.8
HK – 3
Ultra-Precision finishing grade
Size : 108 x 312 x 467
Specific Gravity 1.84
Specific Resistance (µΩm)15.5
Flexural Strength (Mpa) 88.2
Shore Hardness 78.0
Average Grain Size (µm) 2.0
Surface Finish (VDI) 16.0
Ra (µm) 0.63