Special Metals NIMONIC® Alloy 263Categories: Metal; Nonferrous Metal; Nickel Alloy; Superalloy

MaterialNotes:

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 andhigh-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 areround, 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 AMS5872; WL Nr. 2.4650; AFNOR NCK 20D; AECMA Pr EN 2199-2203, 2418

Vendors: 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 thismaterial.

Physical Properties Metric English CommentsDensity 8.36 g/cc 0.302 lb/in³ MechanicalProperties

Metric English Comments

Tensile Strength,Ultimate

940 MPa 136000 psi Precipitation Hardened. Value at roomtemperature.

760 MPa@Temperature 650 °C

110000 psi@Temperature 1200 °F

Precipitation Hardened prior to test

Tensile Strength,Yield

550 MPa@Strain 0.200 %

79800 psi@Strain 0.200 %

Precipitation Hardened. Value at roomtemperature

450 MPa@Strain 0.200 %,

Temperature 650 °C

65300 psi@Strain 0.200 %,

Temperature 1200 °F

Precipitation Hardened prior to test

Elongation at Break 39.0 % 39.0 % Precipitation Hardened 30.0 %

@Temperature 650 °C30.0 %

@Temperature 1200 °FPrecipitation Hardened prior to test.

Electrical Properties Metric English CommentsElectrical Resistivity 0.000115 ohm-cm 0.000115 ohm-cmMagneticPermeability

1.0008 1.0008 at 200 oersted (15.9 kA/m)

Thermal Properties Metric English CommentsCTE, linear 10.3 µm/m-°C

@Temperature 20.0 - 100 °C5.72 µin/in-°F

@Temperature 68.0 - 212 °F

Specific HeatCapacity

0.461 J/g-°C 0.110 BTU/lb-°F

Thermal Conductivity 11.7 W/m-K 81.2 BTU-in/hr-ft²-°FMelting Point 1300 - 1355 °C 2370 - 2471 °FSolidus 1300 °C 2370 °FLiquidus 1355 °C 2471 °F ComponentElements Properties

Metric English Comments

Al + Ti 2.40 - 2.80 % 2.40 - 2.80 %Aluminum, Al <= 0.60 % <= 0.60 %Boron, B <= 0.0050 % <= 0.0050 %

Special Metals NIMONIC® Alloy 263 http://matweb.com/search/datasheet_print.aspx?matguid=fbba09b206d...

1 of 2 6/12/2012 2:47 PM

Carbon, C 0.040 - 0.080 % 0.040 - 0.080 %Chromium, Cr 19.0 - 21.0 % 19.0 - 21.0 %Cobalt, Co 19.0 - 21.0 % 19.0 - 21.0 %Copper, Cu <= 0.20 % <= 0.20 %Iron, Fe <= 0.70 % <= 0.70 %Manganese, Mn <= 0.60 % <= 0.60 %Molybdenum, Mo 5.60 - 6.10 % 5.60 - 6.10 %Nickel, Ni 49.0 % 49.0 % As remainderSilicon, Si <= 0.40 % <= 0.40 %Sulfur, S <= 0.0070 % <= 0.0070 %Titanium, Ti 1.90 - 2.40 % 1.90 - 2.40 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistentformat. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as rawconversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error.We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they wereoriginally entered into MatWeb.

Special Metals NIMONIC® Alloy 263 http://matweb.com/search/datasheet_print.aspx?matguid=fbba09b206d...

2 of 2 6/12/2012 2:47 PM