|
|
Carbon steels |
10XX |
Plain carbon,
Mn 1.00% max |
| 11XX |
Resulfurized
free machining |
| 12XX |
Resulfurized/rephosphorized
free machining |
| 15XX |
Plain carbon,
Mn 1.00-1.65% |
| Manganese
steel |
13XX |
Mn 1.75% |
|
Nickel steels |
23XX |
Ni 3.50% |
| 25XX |
Ni 5.00% |
|
Nickel-chromium steels |
31XX |
Ni 1.25%, Cr
.65-.80% |
|
32XX |
Ni 1.75%, Cr 1.07% |
|
33XX |
Ni 3.50%, Cr 1.50-1.57% |
|
34XX |
Ni 3.00%, Cr .77% |
|
Molybdenum steels |
40XX |
Mo .20-.25% |
| 44XX |
Mo .40-.52% |
| Chromium-molybdenum
steels |
41XX |
Cr .50-.95%,
Mo .12-.30% |
|
Nickel-chromium-molybdenum steels |
43XX |
Ni 1.82%, Cr
.50-.80%, Mo .25% |
| 47XX |
Ni 1.05%, Cr
.45%, Mo .20-.35% |
|
Nickel-molybdenum steels |
46XX |
Ni .85-1.82%, Mo .20-.25% |
|
48XX |
Ni 3.50%, Mo .25% |
|
Chromium steels |
50XX |
Cr .27-.65% |
| 51XX |
Cr .80-1.05% |
| 50XXX |
Cr .50%, C 1.00%
min |
| 51XXX |
Cr 1.02%, C
1.00% min |
| 52XXX |
Cr 1.45%, C
1.00% min |
| Chromium-vanadium
steels |
61XX |
Cr .60-.95%,
V .10-.15% |
| Tungsten-chromium
steels |
72XX |
W 1.75%, Cr
.75% |
|
Nickel-chromium-molybdenum steels |
81XX |
Ni .30%, Cr
.40%, Mo .12% |
|
86XX |
Ni .55%, Cr .50%, Mo .20% |
|
87XX |
Ni .55%, Cr .50%, Mo .25% |
|
88XX |
Ni .55%, Cr .50%, Mo .35% |
| Silicon-manganese
steels |
92XX |
Si 1.40-2.00%,
Mn .65-.85%, Cr 0-.65% |
|
Nickel-chromium-molybdenum steels |
93XX |
Ni 3.25%, Cr 1.20%, Mo .12% |
|
94XX |
Ni .45%, Cr .40%, Mo .12% |
|
97XX |
Ni .55%, Cr .20%, Mo .20% |
|
98XX |
Ni 1.00%, Cr .80%, Mo .25% |
|
|
