Nickel-based alloy
Nickel-based alloy is a high-performance alloy with nickel (content ≥ 50%) as the matrix, and added with chromium (Cr), molybdenum (Mo), cobalt (Co), iron (Fe), titanium (Ti) and other elements. Its core advantages are high temperature resistance, corrosion resistance, oxidation resistance and high strength, and it is widely used in extreme environments such as high temperature, high pressure, strong corrosion and other scenes
Introduction
Representative materials of Nickel-based alloys are:
1. Incoloy alloy, such as Incoloy800, the main components are; 32Ni-21Cr-Ti,Al; it is a heat-resistant alloy;
2. Inconel alloy, such as Inconel600, the main components are; 73Ni-15Cr-Ti,Al; it is a heat-resistant alloy;
3. Hastelloy alloy, such as Hastelloy C-276, the main components are; 56Ni-16Cr-16Mo-4W; it is a corrosion-resistant alloy;
4. Monel alloy, such as Monel 400, the main components are; 65Ni-34Cu; it is a corrosion-resistant alloy;
Nickel Alloy Grades – Chemical Composition |
||||||||
Alloy # |
Cr |
Ni |
C |
Mn. Max. |
Si Max. |
P Max. |
S Max. |
Other Elements |
Carpenter 20Cb-3 |
20 |
35 |
0.06 Max. |
2 |
1 |
0.035 |
0.035 |
Cu 3.5, Mo 2.5, Nb+Ta 8xC Min/1.0 Max |
Haynes 25 (L605) |
20 |
10 |
0.05/0.15 |
2 |
1 |
.... |
.... |
Co 50.0, W 15.0 |
Hastelloy B-2 |
1 |
68 |
0.02 Max. |
1 |
0.1 |
0.04 |
0.03 |
Mo 28.0, Co 1.0 |
C-276 |
15.5 |
57 |
0.02 Max. |
1 |
0.08 |
0.03 |
0.03 |
Mo 16.0 |
Hastelloy X |
21.8 |
47.5 |
0.05/0.15 |
1 |
1 |
0.04 |
0.03 |
Mo 9.0, Co 1.5 |
Inconel 600 |
15.5 |
76 |
0.15 Max. |
.... |
.... |
.... |
.... |
.......... |
Inconel 601 |
23 |
60.5 |
0.10 Max. |
.... |
.... |
.... |
.... |
Al 1.00/1.70 |
Inconel 625 |
21.5 |
61 |
0.10 Max. |
.... |
.... |
.... |
.... |
Mo 9.0, Nb+Ta 3.6 |
Inconel 718 |
19 |
52.5 |
0.08 Max. |
.... |
.... |
.... |
.... |
Mo 3.0, Nb+Ta 5.1 |
Incoloy 800 |
21 |
32.5 |
0.10 Max. |
.... |
.... |
.... |
.... |
.......... |
Incoloy 825 |
.... |
.... |
.... |
.... |
.......... |
|||
Monel 400 |
..... |
66.5 |
0.30 Max. |
.... |
.... |
.... |
.... |
Cu 31.5 |
Nichrome V |
20 |
80 |
.... |
.... |
.... |
.... |
.... |
.......... |
Nickel 200 |
..... |
99.6 |
0.15 Max. |
.... |
.... |
.... |
.... |
.......... |
Nickel 201 |
..... |
99.6 |
0.02 Max. |
.... |
.... |
.... |
.... |
.......... |
Application
Chemical equipment: heat exchangers, reactors, towers, etc., pipes, valves, etc. accessories.
Energy equipment: heat exchangers, pipes, etc. of high-temperature and high-pressure boilers, pressure vessels, pipes, etc. of nuclear reactors.
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