Special Metals NIMONIC® Alloy 263

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Special Metals NIMONIC® Alloy 263
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	A precipitation-hardenable nickel-chromium-cobalt alloy with an addition of molybdenum for solid-solution strengthening. It has high strength and corrosion resistance along with good formability and high-temperature ductility in welded structures. The alloy is especially suitable for sheet applications. Used in gas turbines for rings, casings, and various sheet fabrications. Standard product forms are round, flats, extruded section, tube, plate, sheet, and wire. Data provided by the manufacturer, Special Metals.
Key Words:	Nickel-Chromium Alloy; Werkstoff Nr. 2.4650, UNS N07263; BS HR10, HR206, HR404; SAE AMS 5872; WL Nr. 2.4650; AFNOR NCK 20D; AECMA Pr EN 2199-2203, 2418
Vendors:	Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Density	8.36 g/cc	0.302 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	760 MPa @Temperature 650 °C	110000 psi @Temperature 1200 °F	Precipitation Hardened prior to test
	940 MPa @Temperature 23.0 °C	136000 psi @Temperature 73.4 °F
Tensile Strength, Yield	550 MPa @Strain 0.2 %	79800 psi @Strain 0.2 %	Precipitation Hardened. Value at room temperature
	450 MPa @Strain 0.2 %, Temperature 650 °C	65300 psi @Strain 0.2 %, Temperature 1200 °F	Precipitation Hardened prior to test
Elongation at Break	39 %	39 %	Precipitation Hardened
	30 % @Temperature 650 °C	30 % @Temperature 1200 °F	Precipitation Hardened prior to test.

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000115 ohm-cm	0.000115 ohm-cm
Magnetic Permeability	1.0008	1.0008	at 200 Oersted (15.9 kA/m)

Thermal Properties	Metric	English	Comments
CTE, linear	10.3 µm/m-°C @Temperature 20.0 - 100 °C	5.72 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.461 J/g-°C	0.110 BTU/lb-°F
Thermal Conductivity	11.7 W/m-K	81.2 BTU-in/hr-ft²-°F
Melting Point	1300 - 1355 °C	2370 - 2471 °F
Solidus	1300 °C	2370 °F
Liquidus	1355 °C	2471 °F

Component Elements Properties	Metric	English	Comments
Al + Ti	2.4 - 2.8 %	2.4 - 2.8 %
Aluminum, Al	<= 0.60 %	<= 0.60 %
Boron, B	<= 0.0050 %	<= 0.0050 %
Carbon, C	0.040 - 0.080 %	0.040 - 0.080 %
Chromium, Cr	19 - 21 %	19 - 21 %
Cobalt, Co	19 - 21 %	19 - 21 %
Copper, Cu	<= 0.20 %	<= 0.20 %
Iron, Fe	<= 0.70 %	<= 0.70 %
Manganese, Mn	<= 0.60 %	<= 0.60 %
Molybdenum, Mo	5.6 - 6.1 %	5.6 - 6.1 %
Nickel, Ni	49 %	49 %	As remainder
Silicon, Si	<= 0.40 %	<= 0.40 %
Sulfur, S	<= 0.0070 %	<= 0.0070 %
Titanium, Ti	1.9 - 2.4 %	1.9 - 2.4 %

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NINC67 / 17417

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