HARDNESS PROFILES FOR VARIOUS STEELS DISTANCE S104 S404 S204 S540 S340 S140 0.5 10.0 11.0 11.5 11.7 11.4 11.5 1.0 6.0 8.5 10.2 11.5 11.2 11.4 1.5 3.5 6.0 7.9 11.0 10.9 11.4 2.0 3.0 5.0 6.0 10.55 10.6 11.4 2.5 2.6 4.4 5.3 10.5 10.0 11.35 3.0 2.3 3.8 4.7 8.8 9.6 11.3 3.5 2.1 3.4 4.5 8.0 9.2 11.25 4.0 1.9 3.0 4.3 7.3 8.9 11.2 4.5 1.8 2.8 4.0 6.8 8.7 11.1 5.0 1.6 2.7 3.85 6.3 8.5 11.0 6.0 1.2 2.4 3.7 5.7 8.0 10.9 7.0 0.9 2.3 3.5 5.4 7.8 10.7 8.0 0.7 2.1 3.4 5.2 7.6 10.6 9.0 0.6 2.05 3.3 5.1 7.4 10.4 10.0 0.5 2.0 3.1 5.0 7.2 10.2