Related Tradenames :
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Carpenter C276 Alloy (tm) , Nickelvac HC-276
(tm) , Nicrofer 5716 hMoW (tm)
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Chemistry Data :
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- 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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Principle Design Features :
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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 :
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Chemical process equipment and desulfurization
of flue gas equipment.
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Machinability :
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Good machinability, although the alloy work hardens
as is true of the nickel base alloys in general.
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Forming :
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Can be cold worked by all conventional methods.
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Welding :
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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 :
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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 :
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The alloy can be forged or hot-upset by conventional
means.
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Hot Working:
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Can be hot formed or extruded. Should be solution
heat treated following hot forming.
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Cold Working:
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Readily cold worked by conventional methods.
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Annealing :
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Normally supplied and use in the solution treated
condition, a 2050 F soak followed by rapid quench.
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Aging :
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Not normally done. The alloy is used in solution
treated condition.
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Tempering :
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Not applicable to this alloy.
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Hardening :
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Hardened by cold working only.
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Other Mechanical Props :
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"U" notch impact strength at -320 F of 263 ft.
lbs. in solution treated condition.
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Mechanical Data :
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Form |
Condition |
Temperature |
Tensile Strength |
Yield Strength |
Elongation |
Rockwell |
Plate |
Heat treated at 2050 F (1121
C) |
70 |
112 |
52 |
59 |
B88 |
Plate |
Heat treated at 2050 F (1121
C) |
1000 |
86 |
30 |
59 |
|
Sheet |
Heat treated at 2050 F (1121
C ) |
70 |
108 |
49 |
61 |
B90 |
Sheet |
Heat treated at 2050 F (1121
C) |
400 |
97 |
42 |
60 |
|
Sheet |
Heat treated at 2050 F (1121
C) |
600 |
97 |
34 |
67 |
|
Sheet |
Heat treated at 2050 F (1121
C) |
800 |
95 |
31 |
67 |
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