Sanada can provide different materials hardness for a bite but the normal and most requested by our valuable customers is the 91.8 HRA
Hardness (HRA) Transverse rupture strength (Kgf / m㎡) Compressive strength (Kgf / m㎡) Co content (%) Particle size (distribution) (μm) 94.0 380 620 8 0.2-0.5 93.2 380 600 6 0.2-0.5 93.0 360 700 7.2 0.2-0.5 92.2 380 570 11.5 0.2-0.5 92.3 380 570 11 0.6 92.3 360 680 10 0.5-0.8 91.8 380 650 10 0.5-0.8 91.3 400 580 10 0.5-0.8 91.3 370 630 12 0.5-0.8 90.0 350 590 13 0.5-0.8 93.5 270 620 4 0.8-1 92.2 290 610 5.8 0.8-1.3 92.2 320 580 6 0.8-1.3 91.2 300 580 6.5 0.8-1.3
Comparison of coating performance
TiN TiAlN Main Coating Roughness Ra = 0.25 Ra = 0.30 Ra = 0.10 Adhesion (against cemented carbide) 80N 80N 80N Film Hardness Approximately 2,200Hmv Approximately 3,000Hmv Approximately 3,700Hmv Oxidation resistance Approximately 450 Degree Celsius About 800 Degree Celsius Approximately 1,300 Degree Celsius
Appearance Hardness (Hmv) Roughness (Ra) Dynamic friction coefficient Oxidation resistance 1,800-2,500 0.01-0.28 μm 0.25-0.35 450 Degree Celsius 2,800-3,300 0.08-0.35 μm 0.25-0.45 800 Degree Celsius 3,500-3,700 0.10-0.20 μm 0.35-0.50 1300 Degree Celsius
