GENERAL TECHNICAL INFORMATION n Recommended Machining Conditions High - Temp Alloys K10 Uncoated Carbide Grade S Titanium - Base Alloys Turning Grooving andUndercutting K10 Materials Feed (sfm) .004 .006 .008 .002 .004 .006 Commercial Designation Hardness Cutting Speed (ipr) Ti6 - 2 - 4 - 2 Annealed 32 - 38 HRC 180 164 148 164 148 131 Ti6Al - 4V Annealed 32 - 38 HRC 164 131 115 164 148 131Solution & Aging 38 - 42 HRC131115981319882 Ti6Al - 6V - 2Sn Annealed 34 - 38 HRC 148 131 115 148 131 115 Ti7Al - 4Mo Ti8Al - 1Mo - 1V Solution & Aging 40 - 44 HRC 131 115 98 131 115 98 TiA55 Annealed 110 - 175 HB 525 509 492 525 492 459 Ti75A Ti140A Annealed 30 - 36 HRC 164 148 131 164 148 131 Nickel - Base Alloys K10 Materials Feed (sfm) .004 .006 .008 .002 .004 .006 Commercial Designation Hardness Cutting Speed (ipr) Astroloy, Rene 41 Solution 20 - 30 HRC - 82 66 98 82 66 Udimet 500, 700 Solution & Aging 32 - 42 HRC - 66 49 82 66 49 Inconel W, X, 702, 718 Solution 20 - 30 HRC - 82 66 98 82 66 M 252, Waspalloy Solution & Aging 40 - 42 HRC - 66 49 82 66 49 Hastolloy B, C, X Annealed 90 - 100 HRB - 98 82 115 98 82 Inconel 600 Cold drawn 24 - 34 HRC - 82 66 98 82 66 TD 2 Stress relieved 30 HRC - 213 197 213 197 164 Cobalt - Base Alloys K10 Materials Feed (sfm) .004 .006 .008 .002 .004 .006 Commercial Designation Hardness Cutting Speed (ipr) HS 21, HS 31, HS 36 As cast20 - 30 HRC - 66 49 - 66 49 Solution - 82 66 - 82 66 L 605 90 - 98 HRBSolution & Aging28 - 34 HRC - 66 49 - 66 49 Stellite 6 39 - 43 HRB - 49 33 - 49 49 Iron Base Alloys TT7220(P25 - P45) TT5100(P20 - P40) K10 Materials Feed (sfm) .004 .006 .010 .004 .006 .008 Commercial Designation Hardness Cutting Speed (ipr) V57, A286 Solution81 HRB - - - 541 361 262 Incoloy 800, 801 Solution & Aging24-34 HRC - - - 591 427 328 1365