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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

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.

Applications		Chemical process equipment and desulfurization of flue gas equipment.

Machinability		Good machinability, although the alloy work hardens as is true of the nickel base alloys in general.

Forming		Can be cold worked by all conventional methods.

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.

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.

Forging		The alloy can be forged or hot-upset by conventional means.

Hot Working		Can be hot formed or extruded. Should be solution heat treated following hot forming.

Cold Working		Readily cold worked by conventional methods.

Annealing		Normally supplied and use in the solution treated condition, a 2050 F soak followed by rapid quench.

Aging		Not normally done. The alloy is used in solution treated condition.

Tempering		Not applicable to this alloy.

Hardening		Hardened by cold working only.

Other Mechanical Props		"U" notch impact strength at -320 F of 263 ft. lbs. in solution treated condition.

Physical Data : [top]

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

Form	Plate
Condition	Heat treated at 2050 F(1121 C)
Temperature	70
Tensile Strength	112
Yield Strength	52
Elongation	59
Rockwell	B88
Form	Plate
Condition	Heat treated at 2050 F(1121 C)
Temperature	1000
Tensile Strength	86
Yield Strength	30
Elongation	59
Form	Sheet
Condition	Heat treated at 2050 F(1121 C)
Temperature	70
Tensile Strength	108
Yield Strength	49
Elongation	61
Rockwell	B90
Form	Sheet
Condition	Heat treated at 2050 F(1121 C)
Temperature	400
Tensile Strength	97
Yield Strength	42
Elongation	60
Form	Sheet
Condition	Heat treated at 2050 F(1121 C)
Temperature	600
Tensile Strength	97
Yield Strength	34
Elongation	67
Form	Sheet
Condition	Heat treated at 2050 F(1121 C)
Temperature	800
Tensile Strength	95
Yield Strength	31
Elongation	67

[top]
Nickel - www.nidi.org

Copper - www.copper.org

Titanium - www.titanium.org

Steel Lynx - www.mlc.lib.mi.us/~stewarca/steelynx.html

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