Inconel™ 925 Material Property Data Sheet

Special Metals INCOLOY® Alloy 925

Subcategory: Metal; Nickel Base; Superalloy

Key Words: UNS N09925; NACE MR-01-75

Component    Wt. % Al 0.3   C 0.01   Cr 21   Cu 1.8   Fe 28   Mo 3   Ni 44   Ti 2.1

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.

Physical Properties	Metric	English	Comments
Density	8.05 g/cc	0.291 lb/in³
Mechanical Properties
Tensile Strength, Ultimate	1210 MPa	175000 psi	Precipitation Hardened. Value at room temperature. Value at 550°C is 970 MPa.
Tensile Strength, Yield	810 MPa	117000 psi	Precipitation Hardened. Value at room temperature; 0.2% offset. Value at 550°C is 700 MPa.
Elongation at Break	24 %	24 %	Precipitation Hardened. Value at room temperature. Value at 550°C is 25%.
Electrical Properties
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
CTE, linear 20°C	13.2 µm/m-°C	7.33 µin/in-°F	20-100°C
Heat Capacity	0.435 J/g-°C	0.104 BTU/lb-°F
Melting Point	1311 - 1366 °C	2390 - 2490 °F
Solidus	1311 °C	2390 °F
Liquidus	1366 °C	2490 °F