MachinabilityOfMetalsChart.pdf
Machinability of Metals
|
| (Based on 100% machinability for AISI 1212 steel) |
| Carbon Steels: |
Percentage |
| 1015 |
72% |
| 1018 |
78% |
| 1020 |
72% |
| 1022 |
78% |
| 1030 |
70% |
| 1040 |
64% |
| 1042 |
64% |
| 1050 |
54% |
| 1095 |
42% |
| 1117 |
91% |
| 1137 |
72% |
| 1141 |
70% |
| 1141 annealed |
81% |
| 1144 |
76% |
| 1144 annealed |
85% |
| 1144 stressproof |
83% |
| 1212 |
100% |
| 1213 |
136% |
| 12L14 |
170% |
| 1215 |
136% |
| Alloy Steels: |
Percentage |
| 2355 annealed |
70% |
| 4130 annelaed |
72% |
| 4140 annealed |
66% |
| 4142 annealed |
66% |
| 41L42 |
77% |
| 4150 annealed |
60% |
| 4340 annealed |
57% |
| 4620 |
66% |
| 4820 annealed |
49% |
| 52100 annealed |
40% |
| 6150 annealed |
60% |
| 8620 |
66% |
| 86L20 |
77% |
| 9310 annealed |
51% |
| Stainless Steels and Super Alloys: |
Percentage |
| 302 annealed |
45% |
| 303 annealed |
78% |
| 304 annealed |
45% |
| 316 annealed |
45% |
| 321 annealed |
36% |
| 347 annealed |
36% |
| 410 annealed |
54% |
| 416 annealed |
110% |
| 420 annealed |
45% |
| 430 annealed |
54% |
| 431 annealed |
45% |
| 440A |
45% |
| 15-5PH condition A |
48% |
| 17-4PH condition A |
48% |
| A286 aged |
33% |
| Hastelloy X |
19% |
| Tool Steels: |
Percentage |
| A-2 |
42% |
| A-6 |
33% |
| D-2 |
27% |
| D-3 |
27% |
| M-2 |
39% |
| O-1 |
42% |
| O-2 |
42% |
| Gray Caast Iron: |
Percentage |
| ASTM class 20 annealed |
73% |
| ASTM class 25 |
55% |
| ASTM class 30 |
48% |
| ASTM class 35 |
48% |
| ASTM class 40 |
48% |
| ASTM class 45 |
36% |
| ASTM class 50 |
36% |
| Nodular Iron: |
Percentage |
| 60-40- 18 annealed |
61% |
| 65-45- 12 annealed |
61% |
| 80-55-06 |
39% |
| Aluminum and Magnesium Alloys: |
Percentage |
| aluminum, cold drawn |
360% |
| aluminum, cast |
450% |
| aluminum, die cast |
76% |
| magnesium, cold drawn |
480% |
| magnesium, cast |
480% |
