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Hastelloy Alloy
Hastelloy C-276
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Hastelloy C276
Hastelloy C-276 is a Nickel-Molybdenum-Chromium alloy with the addition of Tungsten, has excellent corrosion resistance in a wide range of corrosive media and is especially resistant to pitting and crevice corrosion.C276 is face-centered cubic lattice structure.
Hastelloy C-276 Chemical composition
Alloy
|
%
|
Ni
|
Cr
|
Mo
|
Fe
|
W
|
Co
|
C
|
Mn
|
Si
|
V
|
P
|
S
|
C
|
Min. |
balance
|
14.5
|
15
|
4
|
3
|
|||||||
Max.
|
16.5
|
17
|
7
|
4.5
|
2.5
|
0.08
|
1
|
1
|
0.35
|
0.04
|
0.03
|
||
C276
|
Min.
|
balance
|
14.5
|
15
|
4
|
3
|
|||||||
Max.
|
16.5
|
17
|
7
|
4.5
|
2.5
|
0.01
|
1
|
0.08
|
0.35
|
0.04
|
0.03
|
Hastelloy C276 Characteristic
1.Excellent corrosion resistance to most of corrosion media in oxidation and reduction environments.
2.Excellent resist pitting, crevice corrosion and stress corrosion cracking performance.
Hastelloy C-276 Corrosion resistance
Hastlloy C276 alloy suit for many kinds of chemical process industry which contain the oxidizing medium and reductant. High molybdenum and chromium content make it can resist the chloride corrosion, and tungsten make it corrosion resistancebetter.C276 is one of a few material that can resist the corrosion of most chlorine, hypochlorite and chlorine dioxide, this alloy have prominent corrosion resistance to high concentration chlorate( iron chloride and copper chloride).
Hastelloy C-276 Application
Alloy C276 is widely used in the chemical field and petrifaction field, such as the element of chloride organic and catalyze system.This material especially suit for high temperature environment, impure inorganic acid and organic acid (such as formic acid and acetic acid), seawater corrosion environment.
1. The digester and bleacher in the use of paper pulp and paper making industry.
2. Absorption tower, re-heater and fan in the FGD system.
3. The equipment and parts in the use of acidic gas environments.
4. Acetic acid and anhydride reaction generator
5. Sulfur acid cooling
6.MDI
7.Manufacture and processing of impure phosphoric acid.
Hastelloy C-276 Physical properties:
Density
|
8.9 g/cm³
|
Melting point
|
1325-1370 ℃
|
Hastelloy C-276 Alloy minimum mechanical properties in the room temperature
Alloy state
|
Tensile strength
Rm N/mm² |
Yield strength
R P0. 2N/mm²
|
Elongation
A 5 % |
C /C276
|
690
|
283
|
40
|
Incoloy: Incoloy 800 | Incoloy 800H | Incoloy 800HT | Incoloy 825 | Incoloy 901 | Incoloy 925 | Incoloy 926
Inconel: Inconel 600 | Inconel 601 | Inconel 625 | Inconel 706 | Inconel 718 | Inconel X-750
Hastelloy: Hastelloy B | Hastelloy B-2 | Hastelloy B-3 | Hastelloy C-4 | Hastelloy C-22 | Hastelloy C-276 | Hastelloy X|Hastelloy G | Hastelloy G3
Nimonic: Nimonic 75 | Nimonic 80A | Nimonic 90
Monel: Alloy 20 | Nickel 200 | Nickel 201 | Monel 400 | Monel 401 | Monel R 405 | Monel K 500
Other: A286 | 17-4PH