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Carpenter Thermo-Span® Fe-Co-Ni Superalloy

Category Metal , Superalloy , Iron Base
Manufacturer Carpenter Technology Corporation (Cartech)
Trade Name Thermo-Span®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Carpenter Thermo-Span® Fe-Co-Ni Superalloy.pdf
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Material Notes:
Data provided by Carpenter Technology Corporation.Thermo-Span® alloy is a precipitation hardenable superalloy which exhibits a low coefficient of thermal expansion over a broad temperature range, high tensile and rupture strengths, and good thermal fatigue resistance. This alloy offers a significant improvement in environmental resistance over Pyromet® alloys CTX-1, CTX-3, AND CTX-909 due to the addition of chromium. the alloy also possesses an excellent combination of tensile properties and stress rupture strength in the recrystallized condition with the use of common solution and age hardening treatments. Unlike the CTX-family of alloys, the use of specific braze-cycle age hardening treatments is not required for Thermo-Span alloy due to the higher solution treating temperature.Thermo-Span alloy should be considered for use in all applications for which the current low expansion superalloys are suited. These include compressor and exhaust casings, seals and other gas turbine components. Additional high temperature applications where moderate oxidation resistance is required are feasible with Thermo-Span alloy. This alloy should also be considered for use in applications requiring resistance to thermal fatigue.Thermo-Span® is a registered trademark of Carpenter Technology Corporation.
Physical Properties Metric English Comments
Density 8.23 g/cc
0.297 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 1227 MPa
178000 psi
579 MPa

@Temperature 760 °C
 84000 psi

@Temperature 1400 °F
678 MPa

@Temperature 732 °C
 98300 psi

@Temperature 1350 °F
800 MPa

@Temperature 705 °C
 116000 psi

@Temperature 1300 °F
904 MPa

@Temperature 677 °C
 131000 psi

@Temperature 1250 °F
1055 MPa

@Temperature 649 °C
 153000 psi

@Temperature 1200 °F
1089 MPa

@Temperature 538 °C
 157900 psi

@Temperature 1000 °F
1175 MPa

@Temperature 260 °C
 170400 psi

@Temperature 500 °F
Tensile Strength, Yield 876 MPa

@Strain 0.200 %
 127000 psi

@Strain 0.200 %
496 MPa

@Strain 0.200 %,
Temperature 760 °C
 71900 psi

@Strain 0.200 %,
Temperature 1400 °F
579 MPa

@Strain 0.200 %,
Temperature 732 °C
 84000 psi

@Strain 0.200 %,
Temperature 1350 °F
662 MPa

@Strain 0.200 %,
Temperature 705 °C
 96000 psi

@Strain 0.200 %,
Temperature 1300 °F
745 MPa

@Strain 0.200 %,
Temperature 677 °C
 108000 psi

@Strain 0.200 %,
Temperature 1250 °F
807 MPa

@Strain 0.200 %,
Temperature 538 °C
 117000 psi

@Strain 0.200 %,
Temperature 1000 °F
814 MPa

@Strain 0.200 %,
Temperature 649 °C
 118000 psi

@Strain 0.200 %,
Temperature 1200 °F
841 MPa

@Strain 0.200 %,
Temperature 260 °C
 122000 psi

@Strain 0.200 %,
Temperature 500 °F
Elongation at Break 16 %
16 %
In 4D
15 %

@Temperature 538 °C
 15 %

@Temperature 1000 °F
 In 4D
16 %

@Temperature 260 °C
 16 %

@Temperature 500 °F
 In 4D
19 %

@Temperature 677 °C
 19 %

@Temperature 1250 °F
 In 4D
20 %

@Temperature 649 °C
 20 %

@Temperature 1200 °F
 In 4D
24 %

@Temperature 705 °C
 24 %

@Temperature 1300 °F
 In 4D
25 %

@Temperature 732 °C
 25 %

@Temperature 1350 °F
 In 4D
30 %

@Temperature 760 °C
 30 %

@Temperature 1400 °F
 In 4D
Reduction of Area 32 %
32 %
32 %

@Temperature 732 °C
 32 %

@Temperature 1350 °F
34 %

@Temperature 260 °C
 34 %

@Temperature 500 °F
35 %

@Temperature 538 °C
 35 %

@Temperature 1000 °F
35 %

@Temperature 677 °C
 35 %

@Temperature 1250 °F
46 %

@Temperature 705 °C
 46 %

@Temperature 1300 °F
49 %

@Temperature 649 °C
 49 %

@Temperature 1200 °F
67 %

@Temperature 760 °C
 67 %

@Temperature 1400 °F
Modulus of Elasticity 145 GPa

@Temperature 982 °C
 21000 ksi

@Temperature 1800 °F
165 GPa

@Temperature 649 °C
 23900 ksi

@Temperature 1200 °F
189 GPa

@Temperature 23.0 °C
 27400 ksi

@Temperature 73.4 °F
Thermal Properties Metric English Comments
CTE, linear 7.70 µm/m-°C

@Temperature 25.0 - 204 °C
 4.28 µin/in-°F

@Temperature 77.0 - 399 °F
8.30 µm/m-°C

@Temperature 25.0 - 316 °C
 4.61 µin/in-°F

@Temperature 77.0 - 601 °F
11.0 µm/m-°C

@Temperature 25.0 - 538 °C
 6.11 µin/in-°F

@Temperature 77.0 - 1000 °F
Specific Heat Capacity 0.463 J/g-°C

@Temperature 23.0 °C
 0.111 BTU/lb-°F

@Temperature 73.4 °F
0.518 J/g-°C

@Temperature 202 °C
 0.124 BTU/lb-°F

@Temperature 396 °F
0.549 J/g-°C

@Temperature 652 °C
 0.131 BTU/lb-°F

@Temperature 1210 °F
Thermal Conductivity 11.3 W/m-K

@Temperature 23.0 °C
 78.4 BTU-in/hr-ft²-°F

@Temperature 73.4 °F
15.0 W/m-K

@Temperature 202 °C
 104 BTU-in/hr-ft²-°F

@Temperature 396 °F
22.1 W/m-K

@Temperature 652 °C
 153 BTU-in/hr-ft²-°F

@Temperature 1210 °F
Component Elements Properties Metric English Comments
Aluminum, Al 0.30 - 0.60 %
0.30 - 0.60 %
Boron, B <= 0.010 %
<= 0.010 %
Carbon, C <= 0.050 %
<= 0.050 %
Chromium, Cr 5.0 - 6.0 %
5.0 - 6.0 %
Cobalt, Co 28 - 30 %
28 - 30 %
Copper, Cu <= 0.50 %
<= 0.50 %
Iron, Fe 34 %
34 %
as remainder
Manganese, Mn <= 0.50 %
<= 0.50 %
Nickel, Ni 23.5 - 25.5 %
23.5 - 25.5 %
Niobium, Nb (Columbium, Cb) 4.5 - 5.2 %
4.5 - 5.2 %
Phosphorous, P <= 0.015 %
<= 0.015 %
Silicon, Si 0.20 - 0.30 %
0.20 - 0.30 %
Sulfur, S <= 0.015 %
<= 0.015 %
Titanium, Ti 0.70 - 1.0 %
0.70 - 1.0 %
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