High-Speed Steel (HSS) - M2 The most widely used industrial high-speed steel, offering high wear resistance and toughness. 210 3100 11.0 24.6 0.46 8.05 0.30 1723 270 0.4 8500 7000 5133 3000 3000 3000 3000 1.80 2.50 5.00 15.00 25.00 40.00 65.00 95.00 140.00 200.00