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ATI Allegheny Ludlum Altemp® A286 Iron-Base Superalloy, UNS S66286

Category Metal , Ferrous Metal , Stainless Steel , Superalloy , Iron Base
Manufacturer ATI Allegheny Ludlum
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ATI Allegheny Ludlum Altemp® A286 Iron-Base Superalloy, UNS S66286.pdf
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Material Notes:
Allegheny Ludlum Altemp A286 alloy is an iron-base superalloy useful for applications requiring high strength and corrosion resistance up to 704 degrees Celsius and for lower stress applications at high temperatures. Specific uses include jet engine nacelles, parts, and fasteners. Allegheny Ludlum Altemp A286 alloy is a heat and corrosion resistant austenitic iron-base material which can be age hardened o a high strength level. The alloy is also used for low temperature applications requiring a ductile, non-magnetic high strength material at temperatures ranging from above room temperature down to -196 degrees Celsius. The alloy may be used for moderate corrosion applications in aqueous solutions. This alloy can be produced by AOD refining or vacuum induction melting. Vacuum arc or electroslag remelting procedures may be used to further refine the material.Information provided by Allegheny Ludlum
Physical Properties Metric English Comments
Density 7.92 g/cc
0.286 lb/in³
Solution Treated
Mechanical Properties Metric English Comments
Hardness, Rockwell B 85
85
Typical Annealed
Tensile Strength, Ultimate 620 MPa
89900 psi
Solution Treated (Typical)
Tensile Strength, Yield 275 MPa
39900 psi
Solution Treated (Typical)
Elongation at Break 40 %
40 %
Solution Treated (Typical)
Modulus of Elasticity 201 GPa
29200 ksi
Dynamic
Poissons Ratio 0.30
0.30
Shear Modulus 77.0 GPa
11200 ksi
Thermal Properties Metric English Comments
CTE, linear 16.5 µm/m-°C

@Temperature 20.0 - 93.0 °C
9.17 µin/in-°F

@Temperature 68.0 - 199 °F
17.0 µm/m-°C

@Temperature 20.0 - 315 °C
9.44 µin/in-°F

@Temperature 68.0 - 599 °F
17.6 µm/m-°C

@Temperature 20.0 - 538 °C
9.78 µin/in-°F

@Temperature 68.0 - 1000 °F
Specific Heat Capacity 0.420 J/g-°C
0.100 BTU/lb-°F
Thermal Conductivity 15.1 W/m-K

@Temperature 150 °C
105 BTU-in/hr-ft²-°F

@Temperature 302 °F
Melting Point 1370 - 1430 °C
2500 - 2610 °F
Solidus 1370 °C
2500 °F
Liquidus 1430 °C
2610 °F
Maximum Service Temperature, Air 816 °C
1500 °F
Continuous service
982 °C
1800 °F
Intermittent
Component Elements Properties Metric English Comments
Aluminum, Al 0.15 %
0.15 %
Boron, B 0.0060 %
0.0060 %
Carbon, C 0.040 %
0.040 %
Chromium, Cr 14.5 %
14.5 %
Iron, Fe 56 %
56 %
as balance
Manganese, Mn 0.20 %
0.20 %
Molybdenum, Mo 1.25 %
1.25 %
Nickel, Ni 25 %
25 %
Phosphorous, P 0.015 %
0.015 %
Silicon, Si 0.20 %
0.20 %
Sulfur, S 0.0020 %
0.0020 %
Titanium, Ti 2.1 %
2.1 %
Vanadium, V 0.30 %
0.30 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000910 ohm-cm
0.0000910 ohm-cm
Magnetic Permeability 1.01
1.01
Solution Treated
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