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Super Alloy HASTELLOY(r) C276 alloy |
Related Metals: |
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Nickelvac HC-276(tm)
Nicrofer 5716 hMoW(tm)
Carpenter C276 Alloy(tm)
Carpenter C276(tm)
HASTELLOY(r) C276 alloy(tm)
Nicrofer 5716(tm)
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Specifications: |
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ASTM B366
ASTM B574
ASTM B575
ASTM B619
ASTM B622
ASTM B626
ASTM F467
ASTM F468
DIN 2.4819
UNS N10276
|
 |
Chemistry Data |
Carbon |
|
0.02 max |
Chromium |
|
14.5 - 16.5 |
Cobalt |
|
2.5 max |
Iron |
|
4 - 7 |
Manganese |
|
1 max |
Molybdenum |
|
15 - 17 |
Nickel |
|
Balance |
Phosphorus |
|
0.03 max |
Silicon |
|
0.08 max |
Sulphur |
|
0.03 max |
Tungsten |
|
3 - 4.5 |
Vanadium |
|
0.35 max |
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General Information |
Principal Design Features |
C-276 is a wrought corrosion-resistant alloy. A prime advantage of this alloy is that it generally does not require solution heat treatment after welding. It resists the formation of grain boundary precipitates that would degrade corrosion resistance. |
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Applications |
Chemical process equipment and desulfurization of flue gas equipment. |
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Machinability |
Good machinability, although the alloy work hardens as is true of the nickel base alloys in general. |
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Forming |
Can be cold worked by all conventional methods. |
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Corrosion Resistance |
Very good corrosion resistance to oxidizing and reducing acids. The alloy also has excellent resistance to stress-corrosion cracking and to pitting, as well as being very resistant to chlorine gas or compounds corrosion. Boiling HCl acid (2% concentra |
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Welding |
Weldable by all common methods except that excessive heat input should be avoided. Can be used in the "as-welded" condition without further heat treatment for most corrosive applications. |
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Heat Treatment |
Solution heat treatment is done at 2050 F followed by a rapid quench. The alloy is supplied in this condition. If hot forming or forging is done then the parts should be solution heat treated, if possible, before use. |
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Forging |
The alloy can be forged or hot-upset by conventional means. |
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Hot Working |
Can be hot formed or extruded. Should be solution heat treated following hot forming. |
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Cold Working |
Readily cold worked by conventional methods. |
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Annealing |
Normally supplied and use in the solution treated condition, a 2050 F soak followed by rapid quench. |
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Aging |
Not normally done. The alloy is used in solution treated condition. |
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Tempering |
Not applicable to this alloy. |
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Hardening |
Hardened by cold working only. |
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Other Mechanical Props |
"U" notch impact strength at -320 F of 263 ft. lbs. in solution treated condition. |
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|
Physical Data |
Density (lb / cu. in.) |
|
0.321 |
Specific Gravity |
|
8.89 |
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) |
|
0.102 |
Electrical Resistivity (microhm-cm (at 68 Deg F)) |
|
779 |
Melting Point (Deg F) |
|
2500 |
Thermal Conductivity |
|
78 |
Mean Coeff Thermal Expansion |
|
6.2 |
Modulus of Elasticity Tension |
|
29.8 |
