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

140 - 160 Brinell

150

135

125

115

105

95

Cast Iron

160 - 180 Brinell

190

175

165

160

150

140

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

Hard

150

140

125

115

100

90

Stainless Steel
SAE 309X
225
200
190
175
160
140
 

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Blackalloy Company of America • 1836 Lonestar Street • Unit 3 • Conway, SC 29526

Tel: (843) 347-3390 • Fax: (843) 347-3391

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