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Special Metals NIMONIC® Alloy PK33

Category Metal , Nonferrous Metal , Nickel Alloy , Superalloy
Manufacturer Special Metals (includes the former Inco Alloys International Inc.)
Trade Name NIMONIC®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Special Metals NIMONIC® Alloy PK33.pdf
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Material Notes:
A nickel-chromium-cobalt alloy that is precipitation hardenable and also contains a relatively high (7%) level of molybdenum for solid-solution strengthening. It has an exceptional combination of high-temperature strength, creep resistance, and ductility when welded. The alloy is especially suitable for welded sheet structures. Used in gas turbines for flame tubes and other components. Standard product forms are round, extruded section, sheet, and wire.Data provided by the manufacturer, Special Metals.
Physical Properties Metric English Comments
Density 8.21 g/cc
0.297 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 1020 MPa

@Temperature 650 °C
148000 psi

@Temperature 1200 °F
Precipitation Hardened prior to test
1150 MPa

@Temperature 23.0 °C
167000 psi

@Temperature 73.4 °F
Tensile Strength, Yield 750 MPa

@Strain 0.200 %
109000 psi

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

@Strain 0.200 %,
Temperature 650 °C
104000 psi

@Strain 0.200 %,
Temperature 1200 °F
Precipitation Hardened prior to test
Elongation at Break 30 %
30 %
Precipitation Hardened
30 %

@Temperature 650 °C
30 %

@Temperature 1200 °F
Precipitation Hardened prior to test.
Thermal Properties Metric English Comments
CTE, linear 12.1 µm/m-°C

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

@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.419 J/g-°C
0.100 BTU/lb-°F
Thermal Conductivity 11.3 W/m-K
78.4 BTU-in/hr-ft²-°F
Melting Point 1300 - 1345 °C
2370 - 2453 °F
Solidus 1300 °C
2370 °F
Liquidus 1345 °C
2453 °F
Component Elements Properties Metric English Comments
Aluminum, Al 1.7 - 2.5 %
1.7 - 2.5 %
Boron, B <= 0.0050 %
<= 0.0050 %
Carbon, C <= 0.070 %
<= 0.070 %
Chromium, Cr 16 - 20 %
16 - 20 %
Cobalt, Co 12 - 16 %
12 - 16 %
Copper, Cu <= 0.20 %
<= 0.20 %
Iron, Fe <= 1.0 %
<= 1.0 %
Manganese, Mn <= 0.50 %
<= 0.50 %
Molybdenum, Mo 5.0 - 9.0 %
5.0 - 9.0 %
Nickel, Ni 54 %
54 %
As remainder
Silicon, Si <= 0.50 %
<= 0.50 %
Sulfur, S <= 0.015 %
<= 0.015 %
Titanium, Ti 1.5 - 3.0 %
1.5 - 3.0 %
Zirconium, Zr <= 0.060 %
<= 0.060 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.000126 ohm-cm
0.000126 ohm-cm
Magnetic Permeability 1.0005
1.0005
at 200 oersted (15.9 kA/m)
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