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Special Metals UDIMET® alloy 720 Nickel Base Alloy

Category Metal , Nonferrous Metal , Nickel Alloy , Superalloy
Manufacturer Special Metals (includes the former Inco Alloys International Inc.)
Trade Name UDIMET®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Special Metals UDIMET® alloy 720 Nickel Base Alloy.pdf
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Material Notes:
UDIMET® alloy 720 is a nickel base alloy, solid solution strengthened with tungsten and molybdenum and precipitation-hardened with titanium and aluminum. The alloy combines high strength with metallurgical stability as demonstrated by excellent impact strength retention after long exposures at elevated temperatures. Good oxidation and corrosion resistance combined with high strength make the alloy useful in gas turbine blade and disc applications.Information Provided by Special Metals Corporation
Physical Properties Metric English Comments
Density 8.08 g/cc
0.292 lb/in³
Mechanical Properties Metric English Comments
Rupture Strength 68.0 MPa

@Temperature 982 °C,
Time 3.60e+6 sec
9860 psi

@Temperature 1800 °F,
Time 1000 hour
219 MPa

@Temperature 871 °C,
Time 3.60e+6 sec
31800 psi

@Temperature 1600 °F,
Time 1000 hour
480 MPa

@Temperature 760 °C,
Time 3.60e+6 sec
69600 psi

@Temperature 1400 °F,
Time 1000 hour
500 MPa

@Temperature 704 °C,
Time 3.60e+6 sec
72500 psi

@Temperature 1300 °F,
Time 1000 hour
700 MPa

@Temperature 649 °C,
Time 3.60e+6 sec
102000 psi

@Temperature 1200 °F,
Time 1000 hour
Thermal Properties Metric English Comments
CTE, linear 12.24 µm/m-°C

@Temperature 93.0 °C
6.800 µin/in-°F

@Temperature 199 °F
Melting Point 1194 - 1338 °C
2181 - 2440 °F
Solidus 1194 °C
2181 °F
Liquidus 1338 °C
2440 °F
Component Elements Properties Metric English Comments
Aluminum, Al 2.25 - 2.75 %
2.25 - 2.75 %
Boron, B 0.010 - 0.020 %
0.010 - 0.020 %
Carbon, C 0.010 - 0.020 %
0.010 - 0.020 %
Chromium, Cr 15.5 - 16.5 %
15.5 - 16.5 %
Cobalt, Co 14 - 15.5 %
14 - 15.5 %
Molybdenum, Mo 2.75 - 3.25 %
2.75 - 3.25 %
Nickel, Ni 55.16 - 59.705 %
55.16 - 59.705 %
Balance
Titanium, Ti 4.75 - 5.25 %
4.75 - 5.25 %
Tungsten, W 1.0 - 1.5 %
1.0 - 1.5 %
Zirconium, Zr 0.025 - 0.050 %
0.025 - 0.050 %
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