System charts Grafici applicativi Anwendungsgrafiken Graphiques d’application Gráficos aplicativos Диаграммы STEEL APPLICATION Rm [N/mm2] ISO P SUH, 1300 1000 800 600 PU+ TA+ HPU+ HTA+ 4HTA+ 400 HL+ SUH mini+ 40 80 120 160 Vc [m/min] + 1st choice , suitable STAINLESS STEEL APPLICATION Machinability ISO M low medium TA, low HTA, 4HTA+ medium SSUH+ high high HL+ PU+ SUH mini+ HPU+ 25 50 75 100 Vc [m/min] TA : general purpose (page 51) + 1st choice , suitable HTA : general purpose with inside coolant (page 51) 4HTA : 4 margins general purpose with inside coolant (page 51) PU : universal purpose (page 81) HPU : universal purpose with inside coolant (page 81) SUH : special purpose with inside coolant (page 103) SUH MINI : miniature 5xD ÷ 30xD with inside coolant (page 133) HL : long 12xD ÷ 30xD (page 165) 48