GENERAL TECHNICAL INFORMATION ■ Recommended Cutting Speed with ISO K Grades - T-Clamp Ultra Cast Iron and Nonferrous Materials Nickel - base Alloys Grade Grade Hardness K10 Hardness K10 Materials Brinell HB Cutting Speed (sfm) Materials Brinell HB Cutting Speed (sfm) Carbon Low tensile, grey 180 200-265 Astroloy, Rene41 Sol 240-300 65-100 Steel High tensile, grey, alloy 250 165-230 Udimet 500, 700 S & A 310-400 50-80 Malleable Short-Chipping 110-145 230-330 Inconel W, X, 702, 718 Sol 240-300 50-100 Iron Long-Chipping 200-250 230-295 M252, Waspaloy S & A 400-410 50-80 Ferritic 160 200-280 Annealed NodularIron Pearlitic 250 150-250 Hastelloy 80-13090-100 HRB Chilled Cast Iron 400 50-80 Cold drawn Inconel 600 65-115 Lead Alloy 110 490-720 250-330 Bronze Brass, Red brass 100 390-590 TD2 Stress relieved 300 165-210 Phosphor-bronze 100 330-460 Magnesium 40-90 HRB 820-885 Aluminum 40-90 HRB 820-1475 Titanium - base Alloys Cobalt - base Alloys Grade Grade Hardness K10MaterialsBrinell HBCutting Speed (sfm)Materials Hardness K10Brinell HBCutting Speed (sfm) Ti5Al - 2.5Sn Annealed 310-370 130-165 HS21, HS31, HS36 As Cast 90-98 HRB 65-80 Ti6Al - 4V Annealed 310-370 130-165 L605 Sol 90-98 HRB 65-80 S & A 370-410 80-130 S & A 280-330 50-65 Ti6Al - 6V - 2Sn Annealed 380-420 100-135 Stellite 6 370-420 50-65 Ti7Al - 4MO S & A-Solution and aging Ti8AlMO - 1V S & A 380-420 100-130 Sol-Solution treatment TiA55Ti75A Annealed 110-175 460-525 Ti140A Annealed 300-350 130-165 1372