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Special Metals INCOLOY® Alloy DS

Category Metal , Superalloy , Iron Base
Manufacturer Special Metals (includes the former Inco Alloys International Inc.)
Trade Name INCOLOY®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Special Metals INCOLOY® Alloy DS.pdf
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Material Notes:
A nickel-iron-chromium alloy with an addition of silicon. It has good high-temperature strength and excellent resistance to oxidation and carburization. The silicon content makes the alloy resistant to internal oxidation in high-temperature atmospheres that vary between oxidizing and reducing. Used in industrial furnaces and for heat-treating baskets, trays, and fixtures. Standard product forms are round, plate, sheet, strip, tube, pipe, and wire.Data provided by the manufacturer, Special Metals.
Physical Properties Metric English Comments
Density 7.86 g/cc
0.284 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 500 MPa

@Temperature 425 °C
72500 psi

@Temperature 797 °F
Solution Annealed prior to test
580 MPa

@Temperature 23.0 °C
84100 psi

@Temperature 73.4 °F
Tensile Strength, Yield 215 MPa

@Strain 0.200 %
31200 psi

@Strain 0.200 %
Precipitation Hardened. Value at room temperature
120 MPa

@Strain 0.200 %,
Temperature 425 °C
17400 psi

@Strain 0.200 %,
Temperature 797 °F
Precipitation Hardened prior to test
Elongation at Break 60 %
60 %
Solution Annealed
64 %

@Temperature 425 °C
64 %

@Temperature 797 °F
Solution Annealed prior to test.
Thermal Properties Metric English Comments
CTE, linear 15.0 µm/m-°C

@Temperature 20.0 - 100 °C
8.33 µin/in-°F

@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.452 J/g-°C
0.108 BTU/lb-°F
Thermal Conductivity 12.0 W/m-K
83.3 BTU-in/hr-ft²-°F
Melting Point 1330 - 1400 °C
2430 - 2550 °F
Solidus 1330 °C
2430 °F
Liquidus 1400 °C
2550 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.10 %
<= 0.10 %
Chromium, Cr 17 - 19 %
17 - 19 %
Copper, Cu <= 0.50 %
<= 0.50 %
Iron, Fe 40 %
40 %
As remainder
Manganese, Mn 0.80 - 1.5 %
0.80 - 1.5 %
Nickel, Ni 34.5 - 41 %
34.5 - 41 %
Including Cobalt
Silicon, Si 1.9 - 2.6 %
1.9 - 2.6 %
Sulfur, S <= 0.030 %
<= 0.030 %
Titanium, Ti <= 0.20 %
<= 0.20 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.000108 ohm-cm
0.000108 ohm-cm
Magnetic Permeability 1.038
1.038
at 200 oersted (15.9 kA/m)
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