Special Metals INCOLOY® A-286 Iron-Nickel-Chromium Alloy (UNS S66286)

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Special Metals INCOLOY® A-286 Iron-Nickel-Chromium Alloy (UNS S66286)
Categories:	Metal; Superalloy; Iron Base
Material Notes:	An alloy that is precipitation hardenable for high mechanical properties. The alloy maintains good strength and oxidation resistance at temperatures up to about 1300°F (700°C). Its high strength and excellent fabrication characteristics make it useful for various components of aircraft and industrial gas turbines. Applications include blades, vanes, shafts, tail cones, afterburners, springs and fasteners, and automotive applications. Tensile properties reported for Precipitation Hardened samples unless noted. Data provided by the manufacturer, Special Metals.
Key Words:	ASTM A 453, A 638 ASME SA-453, SA-638 SAE AMS 5525, 5726, 5731, 5732, 5734, 5737, 5858, 5895, 7235 BS HR 51, HR 52, HR 650 AECMA Pr EN 2119, 2171 – 2175, 2303, 2304, 2398, 2399, 2417, 3510 NACE MR-0175/ISO 15156 W. NR. 1.4980
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Physical Properties	Metric	English	Comments

Density	7.94 g/cc	0.287 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	31	31	As Annealed
Tensile Strength, Ultimate	517 MPa @Temperature 760 °C	75000 psi @Temperature 1400 °F
	689 MPa @Temperature 649 °C	100000 psi @Temperature 1200 °F
	862 MPa @Temperature 538 °C	125000 psi @Temperature 1000 °F
	931 MPa @Temperature 427 °C	135000 psi @Temperature 800 °F
	965 MPa @Temperature 316 °C	140000 psi @Temperature 600 °F
	1000 MPa @Temperature 204 °C	145000 psi @Temperature 400 °F
	1030 MPa @Temperature 93.3 °C	150000 psi @Temperature 200 °F
	1090 MPa @Temperature 21.1 °C	158000 psi @Temperature 70.0 °F
Tensile Strength, Yield	379 MPa @Strain 0.2 %, Temperature 760 °C	55000 psi @Strain 0.2 %, Temperature 1400 °F
	552 MPa @Strain 0.2 %, Temperature 649 °C	80000 psi @Strain 0.2 %, Temperature 1200 °F
	586 MPa @Strain 0.2 %, Temperature 538 °C	85000 psi @Strain 0.2 %, Temperature 1000 °F
	621 MPa @Strain 0.2 %, Temperature 427 °C	90000 psi @Strain 0.2 %, Temperature 800 °F
	655 MPa @Strain 0.2 %, Temperature 316 °C	95000 psi @Strain 0.2 %, Temperature 600 °F
	689 MPa @Strain 0.2 %, Temperature 204 °C	100000 psi @Strain 0.2 %, Temperature 400 °F
	724 MPa @Strain 0.2 %, Temperature 93.3 °C	105000 psi @Strain 0.2 %, Temperature 200 °F
	758 MPa @Strain 0.2 %, Temperature 21.1 °C	110000 psi @Strain 0.2 %, Temperature 70.0 °F
Elongation at Break	18 % @Temperature 649 °C	18 % @Temperature 1200 °F
	20 % @Temperature 760 °C	20 % @Temperature 1400 °F
	20 % @Temperature 538 °C	20 % @Temperature 1000 °F
	22 % @Temperature 427 °C	22 % @Temperature 800 °F
	24 % @Temperature 316 °C	24 % @Temperature 600 °F
	26 % @Temperature 204 °C	26 % @Temperature 400 °F
	28 % @Temperature 93.3 °C	28 % @Temperature 200 °F
	30 % @Temperature 21.1 °C	30 % @Temperature 70.0 °F
Modulus of Elasticity	201 GPa	29200 ksi	As Annealed

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000910 ohm-cm	0.0000910 ohm-cm	As Annealed
Magnetic Permeability	1.007	1.007	at 200 Oersted (15.9 kA/m)

Thermal Properties	Metric	English	Comments
CTE, linear	16.4 µm/m-°C @Temperature 27.0 - 100 °C	9.11 µin/in-°F @Temperature 80.6 - 212 °F	Mean
	16.9 µm/m-°C @Temperature 27.0 - 300 °C	9.39 µin/in-°F @Temperature 80.6 - 572 °F	Mean
	17.5 µm/m-°C @Temperature 27.0 - 500 °C	9.72 µin/in-°F @Temperature 80.6 - 932 °F	Mean
	17.7 µm/m-°C @Temperature 27.0 - 700 °C	9.83 µin/in-°F @Temperature 80.6 - 1290 °F	Mean
Specific Heat Capacity	0.419 J/g-°C	0.100 BTU/lb-°F
Thermal Conductivity	12.7 W/m-K	88.1 BTU-in/hr-ft²-°F	As Annealed
Melting Point	1370 - 1430 °C	2500 - 2610 °F
Solidus	1370 °C	2500 °F
Liquidus	1430 °C	2610 °F
Maximum Service Temperature, Air	700 °C	1290 °F	good strength and oxidation resistance

Component Elements Properties	Metric	English	Comments
Aluminum, Al	<= 0.35 %	<= 0.35 %
Boron, B	0.0010 - 0.010 %	0.0010 - 0.010 %
Carbon, C	<= 0.080 %	<= 0.080 %
Chromium, Cr	13.5 - 16 %	13.5 - 16 %
Iron, Fe	60 %	60 %	As remainder
Manganese, Mn	<= 2.0 %	<= 2.0 %
Molybdenum, Mo	1.0 - 1.5 %	1.0 - 1.5 %
Nickel, Ni	24 - 27 %	24 - 27 %
Sulfur, S	<= 0.030 %	<= 0.030 %
Titanium, Ti	1.9 - 2.35 %	1.9 - 2.35 %
Tungsten, W	3.0 - 4.5 %	3.0 - 4.5 %
Vanadium, V	0.10 - 0.50 %	0.10 - 0.50 %

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NINCO01 / 17434

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