Grade and mechanical property Material Properties Unit Ratio - Super micro grain carbide Micro grain carbide Wear resistance / Shock resistance FW05A FW08 FW25 FW30 FW35 FW35R FW60R KW10A VW30 VW55 VW70 VW80 14.8 14.7 13.9 14.1 14.2 14.1 13.6 14.8 14.5 14.0 13.8 13.3 Hardness HV 2000 1850 1600 1700 1450 1400 1200 1750 1450 1200 950 850 HRA 94.0 93.5 92.0 92.5 90.5 90.0 88.5 93.0 90.5 88.5 85.5 83.0 Fracture toughness MPa · m1/2 8.5 9.0 10.5 9.5 13.0 15.0 20.0 9.0 14.5 20.0 >20.0 >20.0 Transverse strength MPa 3600 3920 3900 4400 3300 3300 3500 2800 3300 3700 3100 2800 Material Properties Unit Ratio - Non-magnetic NW20 14.4 HV 1500 Hardness HRA 91.0 Fracture toughness MPa · m1/2 10.0 Transverse strength MPa 3300 Cermet Alumina Zirconia Silicon nitride TN60 TC60M FT20 A479SS Z201N SN235P 6.6 8.1 6.4 3.9 6.1 3.2 1764 1666 2450 1650 980 1372 92.0 91.0 91.0 - - - 9.0 10.5 10.0 3.5 6.5 6.5 1760 2500 320 320 980 880 Comparison by vickers hardness Comparison by fracture toughness Comparison by transverse strength FW05A FW60R FW30 FW30 VW55 VW55 FT20 FW35R FW05A FW35 FW35 FW60R FW35R FT20 FW35 Z201N FW30 FW35R FW60R FW05A FT20 VW55 Z201N Z201N 0 500 1000 1500 2000 2500 (HV) 0 5 10 15 20 25 (MP・a m1/2) 0 1000 2000 3000 4000 5000 (MPa) 4
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