Special Metals INCOLOY® Alloy 925

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Special Metals INCOLOY® Alloy 925
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	A precipitation-hardenable nickel-iron-chromium alloy with additions of molybdenum and copper. It combines the high strength of a precipitation-hardenable alloy with the excellent corrosion resistance of INCOLOY alloy 825. The alloy has outstanding resistance to general corrosion, pitting, crevice corrosion, and stress-corrosion cracking in many aqueous environments including those containing sulfides and chlorides. Used for surface and down-hole hardware in sour gas wells and for oil-production equipment. Standard product forms are round, flats, forging stock, pipe, tube, and wire. Data provided by the manufacturer, Special Metals.
Key Words:	UNS N09925; NACE MR-01-75
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	8.05 g/cc	0.291 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	970 MPa @Temperature 550 °C	141000 psi @Temperature 1020 °F	Precipitation Hardened prior to test
	1210 MPa @Temperature 23.0 °C	175000 psi @Temperature 73.4 °F
Tensile Strength, Yield	810 MPa @Strain 0.2 %	117000 psi @Strain 0.2 %	Precipitation Hardened. Value at room temperature
	700 MPa @Strain 0.2 %, Temperature 550 °C	102000 psi @Strain 0.2 %, Temperature 1020 °F	Precipitation Hardened prior to test
Elongation at Break	24 %	24 %	Precipitation Hardened
	25 % @Temperature 550 °C	25 % @Temperature 1020 °F	Precipitation Hardened prior to test.

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000117 ohm-cm	0.000117 ohm-cm
Magnetic Permeability	1.001	1.001	at 200 Oersted (15.9 kA/m)

Thermal Properties	Metric	English	Comments
CTE, linear	13.2 µm/m-°C @Temperature 20.0 - 100 °C	7.33 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.435 J/g-°C	0.104 BTU/lb-°F
Melting Point	1311 - 1366 °C	2392 - 2491 °F
Solidus	1311 °C	2392 °F
Liquidus	1366 °C	2491 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	0.30 %	0.30 %
Carbon, C	0.010 %	0.010 %
Chromium, Cr	21 %	21 %
Copper, Cu	1.8 %	1.8 %
Iron, Fe	28 %	28 %
Molybdenum, Mo	3.0 %	3.0 %
Nickel, Ni	44 %	44 %
Titanium, Ti	2.1 %	2.1 %

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NINC87 / 17430

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