Spitfire Speed/Feed Chart

Speeds & Feeds for Blackalloy™ Grade "525"™ Tools

Material Machined		1/32" (.030") Feed Per Revolution
		Depth of Cut - Inches
		1/32	1/16	1/8	3/16	1/4	3/8
		Cutting Speed F.P.M.
Steel	SAE 1010-1040	250	225	190	170	145	130
	SAE 1050-1070	175	160	145	135	115	100
	SAE 1080-1095	150	140	120	110	100	90
	Free Cutting 11XX	300	270	240	220	185	160
	Manganese	125	120	100	95	90	80
	SAE 2015-2515	150	140	125	115	105	90
	SAE 3115-3400	135	125	115	105	95	75
	SAE 4130-4820	150	135	125	115	105	90
	SAE 6120-6145	125	115	100	95	90	80
	SAE 71XX-72XX	120	110	97	90	80	65
	SAE 52XX	125	115	100	95	90	85
Cast Steel	115 - 140 Brinell	160	145	140	130	120	110
Cast Steel	140 - 160 Brinell	150	135	125	115	105	95
Cast Iron	160 - 180 Brinell	190	175	165	160	150	140
Cast Iron	225 - 250 Brinell	150	140	130	110	120	110
Aluminum		1250	1100	1000	950	900	800
Brass		500	450	400	360	325	300
Bronze	Soft	200	175	155	145	125	115
Bronze	Hard	150	140	125	115	100	90
Stainless Steel	SAE 309X	225	200	190	175	160	140

Blackalloy Company of America • 21 Summit Avenue • Elmwood Park, NJ 07407

Tel: (201) 475-9300 • Fax: (201) 475-9304

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