Machinability
Ratings of Alloy Steels
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ALLOYS ] |
Machinability
Ratings of Alloy Steels
Stock
List & Cross Indexed Specs of Alloy
Steels |
Alloy
Steels |
| GRADE |
APPROXIMATE
SURF. FT.
PER MIN. |
%
RELATIVE SPEED
BASED ON
C-1212 as 100% |
GRADE |
APPROXIMATE
SURF. FT.
PER MIN. |
%
RELATIVE SPEED
BASED ON
C-1212 as 100% (165 SFM) |
| E-17-22A |
95 |
57 |
E-52100 |
65 |
40 |
| E-4130 |
120 |
72 |
E-6150 |
100 |
60 |
| E-4130
H.T. |
65 |
40 |
E-8740 |
110 |
66 |
| E-4140 |
110 |
66 |
E-9310 |
80 |
49 |
| E-4330
Mod |
95 |
57 |
Nitriding |
83 |
51 |
| E-4340 |
95 |
57 |
H-11 |
75 |
45 |
| E-4340 |
|
|
Hy-Tuf |
75 |
45 |
| Mod "300M" |
95 |
57 |
D6AC |
80 |
49 |
| E-4620 |
110 |
66 |
9-4
30 |
75 |
45 |
|
PARTIAL
STOCK LIST
& CROSS INDEXED SPECIFICATIONS |
TYPE |
BAR/WIRE |
SHEET/STRIP |
PLATE |
TUBE |
PIPE |
FORGINGS |
4130
Alloy
AISI 4130 |
AMS
6370
ASTM-A-304
A-322
A 331
MIL-S-6758
MIL-S-16974
QQ-S-624 |
AMS
6350
AMS 6351
ASTM-A 505
MIL-S-18729 |
AMS
6350
AMS 6351
MIL-S-18729 |
AMS
6361
AMS 6362
AMS 6371
AMS 6373
ASTM-A 519
MIL-T-6736 |
COMMERCIAL |
AMS
6370
ASTM-A 372
A 646 |
4140
Alloy
AISI 4140 |
AMS
6378
AMS 6382
ASTM-A-193
A-304
A-320
A-322
A-331
MIL-S-5626
MIL-S-16974 |
AMS
6395
ASTM-A-505
|
AMS
6395 |
AMS
6381
AMS 6390
ASTM-A-519 |
COMMERCIAL |
AMS
6382
ASTM-A-646 |
4330
MOD Alloy |
AMS
6411
6427
MIL-S-8699 |
|
|
AMS
6411 |
COMMERCIAL |
AMS
6411
6427
ASTM-A-293 |
4340
Alloy
AISI 4340 |
AMS
6414
AMS 6415
ASTM-A-304
A-320
A-322
A-331
MIL-S-5000
MIL-S-8844 |
AMS
6350
ASTM-A-505 |
AMS
6359 |
AMS
6414
AMS 6415
ASTM-A-519 |
COMMERCIAL |
AMS
6416
6415
ASTM-A-646 |
4620
Alloy
AISI 4620 |
AMS
6294
ASTM-A-304
A-322
A-331
MIL-S-7493 |
|
|
|
|
AMS
6294 |
6150
Alloy
AISI 6150 |
AMS
6448
AMS 6450
ASTM-A-304
A-322
MIL-S-8503 |
AMS
6455 |
AMS
6455 |
|
|
AMS
6448 |
8620
Alloy
AISI 8620 |
AMS
6274
AMS 6276
AMS 6277
ASTM-A 304
A-322
A-331 |
COMMERCIAL
QUALITY |
COMMERCIAL
QUALITY |
AMS
6274 |
COMMERCIAL
QUALITY |
AMS
6274
6276
6277 |
8740
Alloy
AISI 8740 |
AMS
6322
AMS 6325
6327
ASTM-A 304
A-322
A-331
MIL-S-6049 |
AMS
6358 |
AMS
6358 |
|
|
AMS
6322
6325
6327 |
9320
Alloy
AISI 9310 |
AMS
6260
6265
6267
ASTM-A-304
A-322
A-331
MIL-S-7393 |
|
|
AMS
6260 |
|
AMS
6260
6265
6267 |
D
6 AC |
AMS
6431
MIL-S-8949 |
|
|
|
|
AMS
6431
MIL-S-8949 |
H
11
(VASCOJET 1000
AISI 610 |
AMS
6485
6487
6488
ASTM-A-681 |
AMS
6437
ASTM-A-681 |
AMS
6437
ASTM-A-681 |
|
|
AMS
6485
6487
6488
ASTM-A-681 |
Nitriding
135 Alloy |
AMS
6470
6471
6472
ASTM-A-355
MIL-S-6709 |
|
|
|
|
AMS
6470
6471
6472 |
300
M Alloy
(4340 MOD.) |
AMS
6417
6419
MIL-S-8844 |
|
|
|
|
AMS
6417
6419 |
17-22
(A) Alloy
AISI 601 |
AMS
6304 |
|
|
|
|
AMS
6304 |
|
|
