
Iron-Based, Heat-Resistant Alloys
(135–320 HB) ()34 HRC) speed — m/min Starting Conditions
material
group grade 15 45 75 105 140 170 200 230 290 310 m/min
WU10HT 30 WS10PT 55
S1 WS25PT 40
WM15CT 55 WM25CT/WM35CT 40
Cobalt-Based, Heat-Resistant Alloys (150–425 HB) ()45 HRC) speed — m/min Starting Conditions
material
group grade 15 45 75 105 140 170 200 230 290 310 m/min
WU10HT 35 WS10PT 60
S2 WS25PT 30
WM15CT 60 WM25CT/WM35CT 30
Nickel-Based, Heat-Resistant Alloys
(140–475 HB) ()48 HRC) speed — m/min Starting Conditions
material
group grade 15 45 75 105 140 170 200 230 290 310 m/min
WU10HT 40 WS10PT 70
S3 WS25PT 40
WM15CT 70 WM25CT/WM35CT 40
Titanium and Titanium Alloys (110–450 HB) ()48 HRC) speed — m/min Starting Conditions
material
group grade 15 45 75 105 140 170 200 230 290 310 m/min
WU10HT 45
S4 WM15CT 70
WM25CT/WM35CT 55