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Aluminum 4032-T6
Categories: Metal; Nonferrous Metal; Aluminum Alloy; 4000 Series Aluminum Alloy

Material Notes: Information provided by Alcoa and the references. General 4032 characteristics and uses: Good machinability and drilling characteristics when using single point or multi-spindle screw machines. Excellent surface finish using polycrystalline or carbide tooling. Superior wear resistance, eliminated the need for hard coat anodizing. High strength, low thermal expansion.

Uses: Master brake cylinders, transmission valves, copier parts, bushings for rack and pinion steering systems, sound recording devices, bearings and hydraulic applications, forged pistons.

Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Composition Notes:
Composition information provided by the Aluminum Association and is not for design.

Key Words: UNS A94032; Aluminium 4032-T6; AA4032-T6; Al4032-T6
Vendors: Eagle Alloys Corporation is a leading supplier of quality metals and alloys. Our staff prides itself on working fast, efficiently and courteously to get you the information you need. Call (800) 237-9012 or visit www.EagleAlloys.com.

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Physical PropertiesOriginal ValueComments
Density 2.68 g/ccAA; Typical
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 120AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop 150Converted from Brinell Hardness Value
Hardness, Rockwell A 47Converted from Brinell Hardness Value
Hardness, Rockwell B 75Converted from Brinell Hardness Value
Hardness, Vickers 137Converted from Brinell Hardness Value
Tensile Strength, Ultimate 55.0 ksiAA; Typical
 21.0 MPa
@Temperature 400 °C
 38.0 MPa
@Temperature 300 °C
 90.0 MPa
@Temperature 200 °C
 345 MPa
@Temperature 100 °C
 380 MPa
@Temperature 25.0 °C
 385 MPa
@Temperature -30.0 °C
 415 MPa
@Temperature -100 °C
 460 MPa
@Temperature -200 °C
Tensile Strength, Yield 46.0 ksiAA; Typical
 12.0 MPa
@Temperature 400 °C
 24.0 MPa
@Temperature 300 °C
 62.0 MPa
@Temperature 200 °C
 300 MPa
@Temperature 100 °C
 315 MPa
@Temperature -30.0 °C
 315 MPa
@Temperature 25.0 °C
 325 MPa
@Temperature -100 °C
 337 MPa
@Temperature -200 °C
Elongation at Break 9.0 %
@Temperature -30.0 °C
 9.0 %
@Temperature 25.0 °C
 9.0 %
@Temperature 100 °C
 10 %
@Temperature -100 °C
 11 %
@Temperature -200 °C
 30 %
@Temperature 200 °C
 70 %
@Temperature 300 °C
 90 %
@Temperature 400 °C
 9.0 %
@Diameter 12.7 mm
AA; Typical
Rupture Strength 59.0 MPa
@Temperature 204 °C,
Time 360000 sec
 69.0 MPa
@Temperature 204 °C,
Time 3.60e+6 sec
 76.0 MPa
@Temperature 204 °C,
Time 3.60e+6 sec
 83.0 MPa
@Temperature 204 °C,
Time 3.60e+6 sec
 103 MPa
@Temperature 204 °C,
Time 36000 sec
 124 MPa
@Temperature 204 °C,
Time 360000 sec
 131 MPa
@Temperature 204 °C,
Time 360000 sec
 131 MPa
@Temperature 204 °C,
Time 3600 sec
 138 MPa
@Temperature 204 °C,
Time 360000 sec
 138 MPa
@Temperature 204 °C,
Time 360 sec
 165 MPa
@Temperature 204 °C,
Time 36000 sec
 179 MPa
@Temperature 204 °C,
Time 36000 sec
 186 MPa
@Temperature 204 °C,
Time 36000 sec
 186 MPa
@Temperature 149 °C,
Time 3.60e+6 sec
 200 MPa
@Temperature 149 °C,
Time 3.60e+6 sec
 200 MPa
@Temperature 204 °C,
Time 3600 sec
 207 MPa
@Temperature 149 °C,
Time 3.60e+6 sec
 207 MPa
@Temperature 204 °C,
Time 3600 sec
 214 MPa
@Temperature 204 °C,
Time 3600 sec
 221 MPa
@Temperature 149 °C,
Time 360000 sec
 221 MPa
@Temperature 204 °C,
Time 360 sec
 228 MPa
@Temperature 204 °C,
Time 360 sec
 234 MPa
@Temperature 204 °C,
Time 360 sec
 234 MPa
@Temperature 149 °C,
Time 36000 sec
 241 MPa
@Temperature 149 °C,
Time 360000 sec
 241 MPa
@Temperature 149 °C,
Time 3600 sec
 248 MPa
@Temperature 149 °C,
Time 360000 sec
 248 MPa
@Temperature 149 °C,
Time 360 sec
 255 MPa
@Temperature 149 °C,
Time 36000 sec
 255 MPa
@Temperature 100 °C,
Time 3.60e+6 sec
 262 MPa
@Temperature 100 °C,
Time 3600 sec
 262 MPa
@Temperature 100 °C,
Time 36000 sec
 262 MPa
@Temperature 100 °C,
Time 360000 sec
 269 MPa
@Temperature 149 °C,
Time 36000 sec
 269 MPa
@Temperature 149 °C,
Time 3600 sec
 269 MPa
@Temperature 100 °C,
Time 360 sec
 276 MPa
@Temperature 149 °C,
Time 3600 sec
 276 MPa
@Temperature 100 °C,
Time 360000 sec
 276 MPa
@Temperature 100 °C,
Time 3.60e+6 sec
 276 MPa
@Temperature 149 °C,
Time 360 sec
 283 MPa
@Temperature 100 °C,
Time 360 sec
 283 MPa
@Temperature 100 °C,
Time 3600 sec
 283 MPa
@Temperature 100 °C,
Time 36000 sec
 290 MPa
@Temperature 149 °C,
Time 360 sec
 296 MPa
@Temperature 100 °C,
Time 360000 sec
 296 MPa
@Temperature 100 °C,
Time 3.60e+6 sec
 303 MPa
@Temperature 100 °C,
Time 36000 sec
 317 MPa
@Temperature 100 °C,
Time 3600 sec
 331 MPa
@Temperature 100 °C,
Time 360 sec
Modulus of Elasticity 11400 ksiAA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poissons Ratio 0.34Estimated from trends in similar Al alloys.
Fatigue Strength 34.0 MPa
@# of Cycles 1.00e+8 ,
Temperature 260 °C
 34.0 MPa
@# of Cycles 5.00e+8 ,
Temperature 260 °C
 48.0 MPa
@# of Cycles 5.00e+8 ,
Temperature 204 °C
 55.0 MPa
@# of Cycles 1.00e+8 ,
Temperature 204 °C
 55.0 MPa
@# of Cycles 1.00e+7 ,
Temperature 260 °C
 79.0 MPa
@# of Cycles 5.00e+8 ,
Temperature 149 °C
 83.0 MPa
@# of Cycles 1.00e+6 ,
Temperature 260 °C
 90.0 MPa
@# of Cycles 1.00e+8 ,
Temperature 149 °C
 90.0 MPa
@# of Cycles 1.00e+7 ,
Temperature 204 °C
 114 MPa
@# of Cycles 5.00e+8 ,
Temperature 24.0 °C
 124 MPa
@# of Cycles 1.00e+8 ,
Temperature 24.0 °C
 124 MPa
@# of Cycles 1.00e+7 ,
Temperature 149 °C
 131 MPa
@# of Cycles 100000 ,
Temperature 260 °C
 138 MPa
@# of Cycles 1.00e+6 ,
Temperature 204 °C
 165 MPa
@# of Cycles 1.00e+7 ,
Temperature 24.0 °C
 165 MPa
@# of Cycles 1.00e+6 ,
Temperature 149 °C
 186 MPa
@# of Cycles 100000 ,
Temperature 204 °C
 207 MPa
@# of Cycles 1.00e+6 ,
Temperature 24.0 °C
 207 MPa
@# of Cycles 100000 ,
Temperature 149 °C
 262 MPa
@# of Cycles 100000 ,
Temperature 24.0 °C
 359 MPa
@# of Cycles 10000 ,
Temperature 24.0 °C
 16000 psi
@# of Cycles 5.00e+8
completely reversed stress; RR Moore machine/specimen
Machinability 70 %0-100 Scale of Aluminum Alloys
Shear Modulus 26.0 GPa
Shear Strength 38.0 ksiAA; Typical
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 30.0 ohm-cir-mil/ft
@Temperature 20.0 °C
AA; Typical
 
Thermal PropertiesOriginal ValueComments
CTE, linear 10.8 µin/in-°F
@Temperature 20.0 - 100 °C
AA; Typical; average over range
 18.0 µm/m-°C
@Temperature -50.0 - 20.0 °C
 20.2 µm/m-°C
@Temperature 20.0 - 200 °C
 21.0 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.850 J/g-°CEstimated from trends in similar Al alloys.
Thermal Conductivity 960 BTU-in/hr-ft²-°FAA; Typical at 77°F
Melting Point 990 - 1060 °FAA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater. Eutectic melting is not eliminated by homogenization.
Solidus 990 °FAA; Typical
Liquidus 1060 °FAA; Typical
 
Processing PropertiesOriginal ValueComments
Annealing Temperature 775 °F2 to 3 hr at temperature then furnace cooled to 500°F at 50°F per hour max
Solution Temperature 940 - 960 °FHold 4 min at temperature then quench in cold water; for heavy or complicated forgings, quench in water at 150 to 212°F
Aging Temperature 335 - 345 °F8 to 12 hr at temperature
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al 81.1 - 87.2 %As remainder
Chromium, Cr <= 0.10 %
Copper, Cu 0.50 - 1.3 %
Iron, Fe <= 1.0 %
Magnesium, Mg 0.80 - 1.3 %
Nickel, Ni 0.50 - 1.3 %
Other, each <= 0.05 %
Other, total <= 0.15 %
Silicon, Si 11 - 13.5 %
Zinc, Zn <= 0.25 %

References for this datasheet.

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