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Specific Gravity g/cm³ 1.84
Specific Resistance µΩm 15.5
Flexural Strength MPa 88.0
Kgf/cm² 900
Hardness shore 78
Average grain size µm 2

HK-3 is a premier grade of ultra-fine graphite, best used where ultra-high definition and excellent edge wear resistance are critical i.e. high quality mould making, aerospace industries and fine detailed rib forms. Good MRR rate/wear ratio. Surface finish: 16 vdi