Special Metals INCOLOY® Alloy 907

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Special Metals INCOLOY® Alloy 907
Categories:	Metal; Superalloy; Iron Base
Material Notes:	A nickel-iron-cobalt alloy with additions of niobium and titanium for precipitation hardening. It has the low coefficient of expansion and high strength of INCOLOY alloy 903 but with improved notch-rupture properties at elevated temperatures. Used for components of gas turbines including seals, shafts, and casings. Standard product forms are round, flats, forging stock, extruded section, and wire. Data provided by the manufacturer, Special Metals.
Key Words:	UNS N19907
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	8.33 g/cc	0.301 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	1140 MPa @Temperature 550 °C	165000 psi @Temperature 1020 °F	Precipitation Hardened prior to test
	1350 MPa @Temperature 23.0 °C	196000 psi @Temperature 73.4 °F
Tensile Strength, Yield	1100 MPa @Strain 0.2 %	160000 psi @Strain 0.2 %	Precipitation Hardened. Value at room temperature
	970 MPa @Strain 0.2 %, Temperature 550 °C	141000 psi @Strain 0.2 %, Temperature 1020 °F	Precipitation Hardened prior to test
Elongation at Break	10 %	10 %	Precipitation Hardened
	10 % @Temperature 550 °C	10 % @Temperature 1020 °F	Precipitation Hardened prior to test.

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000697 ohm-cm	0.0000697 ohm-cm
Curie Temperature	400 - 455 °C	752 - 851 °F

Thermal Properties	Metric	English	Comments
CTE, linear	7.70 µm/m-°C @Temperature 20.0 - 427 °C	4.28 µin/in-°F @Temperature 68.0 - 801 °F
Specific Heat Capacity	0.431 J/g-°C	0.103 BTU/lb-°F
Thermal Conductivity	14.8 W/m-K	103 BTU-in/hr-ft²-°F
Melting Point	1335 - 1400 °C	2435 - 2550 °F
Solidus	1335 °C	2435 °F
Liquidus	1400 °C	2550 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	0.030 %	0.030 %
Cobalt, Co	13 %	13 %
Iron, Fe	42 %	42 %
Nickel, Ni	38 %	38 %
Niobium, Nb (Columbium, Cb)	4.7 %	4.7 %
Silicon, Si	0.15 %	0.15 %
Titanium, Ti	1.5 %	1.5 %

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NINC85 / 17428

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