|
Name of
Steel |
Category |
Numbers |
|
Carbon
Steel |
Plain Carbon
(Manganese 1.00% Maxi |
10xx |
|
Free Cutting
and Resulpherised |
11xx |
|
Resulpherised
and Rephosphorised |
12xx |
|
Plain Carbon
(Manganese Range 1.00% - 1.65%) |
15xx |
|
Manganese
Steel |
Manganese
1.75% |
13xx |
|
Nickel
Steel |
Nickel 3.50% |
23xx |
|
Nickel 5.00% |
25xx |
Nickel
Molybdenum
Steel |
Nickel 1.25%,
Chromium 0.65 to 0.80% |
31xx |
|
Nickel 1.75%,
Chromium 1.07% |
32xx |
|
Nickel 3.50%,
Chromium 1.50 to 1.57% |
33xx |
|
Nickel 3.00%,
Chromium 0.77% |
34xx |
|
Corrosion and
Heat Resisting |
303xx |
|
Molybdenum
Steel |
Molybdenum
0.20 to 0.25% |
40xx |
|
Molybdenum
0.40 to 0.52% |
44xx |
|
Chromium
Molybdenum Steel |
Chromium 0.50,
0.80, 0.95%, Molybdenum 0.12, 0.20, 0.25, 0.30% |
41xx |
|
Nickel
Chromium Molybdenum Steel |
Nickel 1.28%,
Chromium 0.50%, Molybdenum 0.25 - 0.80% |
43xx |
|
Nickel 1.05%,
Chromium 0.45%, Molybdenum 0.25 – 0.35% |
47xx |
|
Nickel 0.30%,
Chromium 0.40%, Molybdenum 0.12% |
81xx |
|
Nickel 0.55%,
Chromium 0.50%, Molybdenum 0.20% |
86xx |
|
Nickel 0.55%,
Chromium 0.50%, Molybdenum 0.35% |
87xx |
|
Nickel 3.25%,
Chromium 1.20%, Molybdenum 0.12% |
93xx |
|
Nickel 0.45%,
Chromium 0.40%, Molybdenum 0.12% |
94xx |
|
Nickel 0.55%,
Chromium 0.20%, Molybdenum 0.20% |
97xx |
|
Nickel 1.00%,
Chromium 0.80%, Molybdenum 0.25% |
98xx |
Nickel
Molybdenum
Steel |
Nickel 1.82
and 1.85%, Molybdenum 0.20% and 0.25% |
46xx |
|
Nickel 3.50%,
Molybdenum 0.25% |
48xx |
|
Chromium
Steel |
Chromium 0.27,
0.40, and 0.50, 0.65% |
50xx |
|
Chromium 0.80,
0.87, 0.92, 0.95, 1.00 and 1.05% |
51xx |
