Special Metals UDIMET® alloy 520 Superalloy

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Special Metals UDIMET® alloy 520 Superalloy
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	UDIMET® alloy 520 is a precipitation-hardenable nickel base superalloy with an exceptional combination of high-temperature mechanical properties, corrosion resistance and forgeability characteristics. Developed for use in the 1400-1700°F (760-927°C) temperature range, the alloy has excellent structural stability and unusually good fabricability. The primary application for alloy 520 is blading for aircraft and land-based gas turbines. Information Provided by Special Metals Corporation
Key Words:	PDS 15125A1
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Physical Properties	Original Value	Comments

Density	8.21 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	350 MPa @Temperature 950 °C
	1150 MPa @Temperature 700 °C
	1250 MPa @Temperature 400 °C
	1300 MPa @Temperature 50.0 °C
Tensile Strength, Yield	500 MPa @Strain 0.2 %, Temperature 850 °C
	700 MPa @Strain 0.2 %, Temperature 700 °C
	850 MPa @Strain 0.2 %, Temperature 50.0 °C
	850 MPa @Strain 0.2 %, Temperature 400 °C
Elongation at Break	100 % @Temperature 50.0 °C
	100 % @Temperature 400 °C
	100 % @Temperature 700 °C
Rupture Strength	150 MPa @Temperature 871 °C, Time 3.60e+6 sec
	230 MPa @Temperature 816 °C, Time 3.60e+6 sec
	345 MPa @Temperature 760 °C, Time 3.60e+6 sec
	475 MPa @Temperature 704 °C, Time 3.60e+6 sec
	585 MPa @Temperature 649 °C, Time 3.60e+6 sec

Thermal Properties	Original Value	Comments
Melting Point	1260 - 1405 °C
Solidus	1260 °C
Liquidus	1405 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	1.8 - 2.3 %
Boron, B	0.0040 - 0.010 %
Carbon, C	0.020 - 0.060 %
Chromium, Cr	18 - 20 %
Cobalt, Co	11 - 14 %
Molybdenum, Mo	5.5 - 7.0 %
Nickel, Ni	52.18 - 59.976 %	Balance
Titanium, Ti	2.9 - 3.25 %
Tungsten, W	0.80 - 1.2 %

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NINDA18 / 98909

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