CHIPBREAKER SELECTION CHART Chipbreaker ISO Workpiece materials First choice Troubleshooting Fracture Wear Low carbon steel (C < 0.3) G BG B SS400, SM490, S25C, etc.St42-1, St52-3, C25, etc. UC2220 AH8015 UC1125 Carbon steel (C > 0.3) G G B S45C, S55C, etc.C45, C55, etc. UC2220 AH8015 UC1125 Low alloy steel (C < 0.3) G BG B SCM415, etc.18CrMo4, etc. UC2220 AH8015 UC1125 Alloy steel (C > 0.3) G G B SCM440, SCr420, etc.42CrMo4, 20Cr4, etc. UC2220 AH8015 UC1125 Stainless steel (Austenitic) G B B SUS304, SUS316, etc.X5CrNi18-9, X5CrNiMo17-12-3, etc.AH8015 UC2220 UC1125 Stainless steel (Martensitic, Ferritic) G B B SUS430, SUS416, etc.X6Cr17, X12CrS13, etc. AH8015 UC2220 UC1125 Stainless steel (Precipitation hardening) G B B SUS630, etc.X5CrNiCuNb16-4, etc. AH8015 UC2220 UC1125 Grey cast iron G G B FC250, etc.250, etc. UC2220 AH8015 UC1125 Ductile cast iron G G B FCD700, etc.700-2, etc. UC2220 AH8015 UC1125 G G B Aluminium alloys UC2220 AH8015 UC1125 Heat-resistant alloys B B B Inconel 718, etc. AH8015 UC2220 UC1125 Titanium alloys B B B Ti-6Al-4V, etc. AH8015 UC2220 UC1125 Hardened steel B B B ≥ 40HRC AH8015 UC2220 UC2220 Tungaloy 055