Special Metals INCONEL® Alloy X-750

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Special Metals INCONEL® Alloy X-750
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	A nickel-chromium alloy similar to INCONEL alloy 600 but made precipitation hardenable by additions of aluminum and titanium. The alloy has good resistance to corrosion and oxidation along with high tensile and creep-rupture properties at temperatures to about 1300°F (700°C). Its excellent relaxation resistance is useful for high-temperature springs and bolts. Used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling, and aircraft structures. Standard product forms are round, flats, extruded section, forging stock, plate, sheet, strip, pipe, tube, and wire. Data provided by the manufacturer, Special Metals.
Key Words:	MIL-N-7786, MIL-N-8550, MIL-S-23192, MIL-N-24114; NACE MR-01-75; AFNOR NC 15 FeT, SAE AMS 5542, 5582, 5583, 5598, 5667 - 5671, 5698, 5699, 5747, 7246, UNS N07750; BS HR505; ASTM B 637; ASME SB-637, Boiler Code Section III; Werkstoff Nr. 2.4669
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	8.28 g/cc	0.299 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	1120 MPa @Temperature 550 °C	162000 psi @Temperature 1020 °F	Precipitation Hardened prior to test
	1250 MPa @Temperature 23.0 °C	181000 psi @Temperature 73.4 °F
Tensile Strength, Yield	850 MPa @Strain 0.2 %	123000 psi @Strain 0.2 %	Precipitation Hardened. Value at room temperature
	760 MPa @Strain 0.2 %, Temperature 550 °C	110000 psi @Strain 0.2 %, Temperature 1020 °F	Precipitation Hardened prior to test
Elongation at Break	30 %	30 %	Precipitation Hardened
	22 % @Temperature 550 °C	22 % @Temperature 1020 °F	Precipitation Hardened prior to test.
Rupture Strength	22.1 MPa @Temperature 982 °C, Time 360000 sec	3200 psi @Temperature 1800 °F, Time 100 hour
	110 MPa @Temperature 816 °C, Time 3.60e+6 sec	16000 psi @Temperature 1500 °F, Time 1000 hour
	179 MPa @Temperature 816 °C, Time 360000 sec	26000 psi @Temperature 1500 °F, Time 100 hour
	469 MPa @Temperature 649 °C, Time 3.60e+6 sec	68000 psi @Temperature 1200 °F, Time 1000 hour
	552 MPa @Temperature 649 °C, Time 360000 sec	80000 psi @Temperature 1200 °F, Time 100 hour

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000122 ohm-cm	0.000122 ohm-cm
Magnetic Permeability	1.0035	1.0035	at 200 Oersted (15.9 kA/m)
Curie Temperature	-125 °C	-193 °F

Thermal Properties	Metric	English	Comments
CTE, linear	12.6 µm/m-°C @Temperature 20.0 - 100 °C	7.00 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.431 J/g-°C	0.103 BTU/lb-°F
Thermal Conductivity	12.0 W/m-K	83.3 BTU-in/hr-ft²-°F
Melting Point	1390 - 1430 °C	2530 - 2610 °F
Solidus	1390 °C	2530 °F
Liquidus	1430 °C	2610 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	0.40 - 1.0 %	0.40 - 1.0 %
Carbon, C	<= 0.080 %	<= 0.080 %
Chromium, Cr	14 - 17 %	14 - 17 %
Cobalt, Co	<= 1.0 %	<= 1.0 %
Copper, Cu	<= 0.50 %	<= 0.50 %
Iron, Fe	5.0 - 9.0 %	5.0 - 9.0 %
Manganese, Mn	<= 1.0 %	<= 1.0 %
Nickel, Ni	>= 70 %	>= 70 %	Including Cobalt
Niobium, Nb (Columbium, Cb)	0.70 - 1.2 %	0.70 - 1.2 %	Includes Ta
Silicon, Si	<= 0.50 %	<= 0.50 %
Sulfur, S	<= 0.010 %	<= 0.010 %
Titanium, Ti	2.25 - 2.75 %	2.25 - 2.75 %

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 consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions 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 were originally entered into MatWeb.

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