Special Metals INCONEL® alloy 783 Ni-Co-Fe Alloy

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Special Metals INCONEL® alloy 783 Ni-Co-Fe Alloy
Categories:	Metal; Nonferrous Metal; Cobalt Alloy; Nickel Alloy; Superalloy
Material Notes:	INCONEL® alloy 783 (UNS R30783/US Patent 5,478,417), is an oxidation-resistant, low expansion, nickel-cobalt-iron alloy with aluminum, chromium, and niobium additions. The alloy is of considerable interest to aircraft gas turbine engine designers and materials engineers for containment and clearance control components such as rings, casings, shrouds and seals for compressors, turbines and exhaust systems. The three-phase age hardenable alloy offers a range of improvements for these applications over alternative alloys. Information Provided by Special Metals Corporation
Key Words:	UNS R30783; AMS 5490
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Physical Properties	Original Value	Comments

Density	7.81 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	807 MPa @Temperature 704 °C
	979 MPa @Temperature 649 °C
	1034 MPa @Temperature 538 °C
	1076 MPa @Temperature 427 °C
	1194 MPa @Temperature 21.0 °C
Tensile Strength, Yield	607 MPa @Temperature 704 °C
	683 MPa @Temperature 649 °C
	686 MPa @Temperature 538 °C
	717 MPa @Temperature 427 °C
	779 MPa @Temperature 21.0 °C
Elongation at Break	24 % @Temperature 21.0 °C
	25 % @Temperature 427 °C
	25 % @Temperature 538 °C
	28 % @Temperature 649 °C
	39 % @Temperature 704 °C
Reduction of Area	39 % @Temperature 649 °C
	42 % @Temperature 427 °C
	44 % @Temperature 21.0 °C
	46 % @Temperature 538 °C
	64 % @Temperature 704 °C
Rupture Strength	30500 psi @Temperature 704 °C, Time 3.96e+6 sec
	43500 psi @Temperature 704 °C, Time 1.44e+6 sec
	82700 psi @Temperature 593 °C, Time 3.96e+7 sec
	100000 psi @Temperature 593 °C, Time 1.44e+6 sec
	100000 psi @Temperature 538 °C, Time 3.96e+7 sec
	131000 psi @Temperature 538 °C, Time 1.08e+6 sec
Modulus of Elasticity	128.7 GPa @Temperature 927 °C
	152.5 GPa @Temperature 704 °C
	163.8 GPa @Temperature 538 °C
	171.3 GPa @Temperature 316 °C
	175.5 GPa @Temperature 93.0 °C
	177.3 GPa @Temperature 21.0 °C
Poissons Ratio	0.29 @Temperature 927 °C
	0.30 @Temperature 538 °C
	0.30 @Temperature 704 °C
	0.31 @Temperature 21.0 °C
	0.31 @Temperature 93.0 °C
	0.32 @Temperature 316 °C
Shear Modulus	49.8 GPa @Temperature 927 °C
	58.6 GPa @Temperature 704 °C
	62.8 GPa @Temperature 538 °C
	65.0 GPa @Temperature 316 °C
	67.0 GPa @Temperature 93.0 °C
	67.8 GPa @Temperature 21.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	10.08 µm/m-°C @Temperature 200 °C
	10.33 µm/m-°C @Temperature 500 °C
	10.94 µm/m-°C @Temperature 800 °C
	12.33 µm/m-°C @Temperature 1100 °C
Specific Heat Capacity	0.455 J/g-°C
Thermal Conductivity	10.1 W/m-K @Temperature 21.0 °C	Annealed
	11.4 W/m-K @Temperature 93.0 °C	Annealed
	14.8 W/m-K @Temperature 316 °C	Annealed
	22.0 W/m-K @Temperature 649 °C	Annealed
Melting Point	1336 - 1407 °C
Solidus	1336 °C
Liquidus	1407 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	5.0 - 6.0 %
Boron, B	0.0030 - 0.012 %
Carbon, C	<= 0.030 %
Chromium, Cr	2.5 - 3.5 %
Cobalt, Co	28.083 - 39.90 %	Remainder
Copper, Cu	<= 0.50 %
Iron, Fe	24 - 27 %
Manganese, Mn	<= 0.50 %
Nickel, Ni	26 - 30 %
Niobium, Nb (Columbium, Cb)	2.5 - 3.5 %
Phosphorus, P	<= 0.015 %
Silicon, Si	<= 0.50 %
Sulfur, S	<= 0.0050 %
Titanium, Ti	0.10 - 0.40 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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