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Machinabiltiy Rating

Machinability Ratings - Stainless

Grade Approximate Surf. Ft. Per Min. % Relative Speed Based on B-1112 as 100%   Grade Approximate Surf. Ft. Per Min. % Relative Speed Based on B-1112 as 100% (165 SFM)
302 70 40 420 85 50
302/304 "B" 55 28 420 F 125 68
303 150 75 430 110 66
303 High Tensile 80 43 430 F 150 75
304 70 40 431 80 48
304 L 70 40 440 A 65 40
309 60 36 440 C 65 40
310 60 36 440 F Se 80 48
316 60 22 446 60 36
316 "B" 50 36 Custom 455 55 28
316 L 60 36 PH-13-8 MO 60 36
317-317 L 60 36 15-5 PH 75 45
321 60 20 17-4 PH 75 45
330 45 36 17-4 PH "H1150" 85 50
347 60 54 17-7 PH 75 45
403 95 54 AM 355 72 42
410 95 75 Nitronic 40 50 22
416 Ann 150 50 Nitronic 50 50 22
416 H.T. 85 50 Nitronic 60 50 22
418 (Greek Ascoloy) 96 50 Carp. 20 70 40
   

Super Alloys - Electrical Steels

Grade Approximate Surf. Ft. Per Min. % Relative Speed Based on B-1112 as 100%   Grade Approximate Surf. Ft. Per Min. % Relative Speed Based on B-1112 as 100% (165 SFM)
Maraging "300" 60 36   Nickel "625" 20 12
A-286 54 28   718 20 12
4750 60 36   X-750 20 12
L-605 15 9   INVAR 36 "FM" 92 55
Nickel "200" 110 66   Waspaloy 45 20
Nickel "400" 80 48   Alloy C (C-276) 40 18
Nickel "405" 80 48   Alloy X 45 20
Nickel "K-500" 60 36   Kovar 60 22
Nickel "600" 50 22   Alloy R41 15 9

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