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Rulon Bearings

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Aluminum 2218-T61 (Includes Creep/Rupture/Fatigue Data)
Categories: Metal; Nonferrous Metal; Aluminum Alloy; 2000 Series Aluminum Alloy
Material Notes: 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: Aluminium 2218-T61; UNS A92218; AMS 4142; NF A-U4N (France); QQ-A-367; SAE J454; AA2218-T61
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 2.81 g/ccAA; Typical
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 115500 kg load with 10 mm ball
Hardness, Knoop 140Converted from Brinell Hardness Value
Hardness, Rockwell A 45.5Converted from Brinell Hardness Value
Hardness, Rockwell B 71Converted from Brinell Hardness Value
Hardness, Vickers 126Converted from Brinell Hardness Value
Tensile Strength, Ultimate 405 MPa
 30.0 MPa
@Temperature 371 °C
 40.0 MPa
@Temperature 315 °C
 70.0 MPa
@Temperature 260 °C
 150 MPa
@Temperature 205 °C
 285 MPa
@Temperature 150 °C
 385 MPa
@Temperature 100 °C
 405 MPa
@Temperature -30.0 °C
 405 MPa
@Temperature 25.0 °C
 420 MPa
@Temperature -80.0 °C
 495 MPa
@Temperature -195 °C
Tensile Strength, Yield 305 MPa
 17.0 MPa
@Temperature 371 °C
 20.0 MPa
@Temperature 315 °C
 40.0 MPa
@Temperature 260 °C
 110 MPa
@Temperature 205 °C
 240 MPa
@Temperature 150 °C
 290 MPa
@Temperature 100 °C
 305 MPa
@Temperature -30.0 °C
 305 MPa
@Temperature 25.0 °C
 310 MPa
@Temperature -80.0 °C
 360 MPa
@Temperature -195 °C
Elongation at Break 13 %
@Temperature -30.0 °C
 13 %
@Temperature 25.0 °C
 14 %
@Temperature -80.0 °C
 15 %
@Temperature -195 °C
 15 %
@Temperature 100 °C
 17 %
@Temperature 150 °C
 30 %
@Temperature 205 °C
 70 %
@Temperature 260 °C
 85 %
@Temperature 315 °C
 100 %
@Temperature 371 °C
 13 %
@Thickness 1.60 mm		In 5 cm
Creep Strength 14.0 MPa
@Temperature 315 °C,
Time 360000 sec		0.2% creep
 21.0 MPa
@Temperature 315 °C,
Time 360000 sec		0.5% creep
 21.0 MPa
@Temperature 315 °C,
Time 36000 sec		0.1% creep
 23.0 MPa
@Temperature 315 °C,
Time 360000 sec		1% creep
 34.0 MPa
@Temperature 315 °C,
Time 36000 sec		0.2% creep
 38.0 MPa
@Temperature 315 °C,
Time 3600 sec		0.1% creep
 41.0 MPa
@Temperature 315 °C,
Time 36000 sec		1% creep
 41.0 MPa
@Temperature 315 °C,
Time 3600 sec		0.2% creep
 41.0 MPa
@Temperature 315 °C,
Time 360 sec		0.1% creep
 45.0 MPa
@Temperature 315 °C,
Time 3600 sec		0.5% creep
 45.0 MPa
@Temperature 315 °C,
Time 360 sec		0.2% creep
 47.0 MPa
@Temperature 315 °C,
Time 36000 sec		0.5% creep
 48.0 MPa
@Temperature 315 °C,
Time 3600 sec		1% creep
 48.0 MPa
@Temperature 315 °C,
Time 360 sec		0.5% creep
 52.0 MPa
@Temperature 315 °C,
Time 360 sec		1% creep
 105 MPa
@Temperature 205 °C,
Time 3.60e+6 sec		0.5% creep
 105 MPa
@Temperature 205 °C,
Time 3.60e+6 sec		0.2% creep
 105 MPa
@Temperature 205 °C,
Time 360000 sec		0.1% creep
 110 MPa
@Temperature 205 °C,
Time 3.60e+6 sec		1% creep
 140 MPa
@Temperature 205 °C,
Time 360000 sec		0.2% creep
 140 MPa
@Temperature 150 °C,
Time 3.60e+6 sec		0.1% creep
 160 MPa
@Temperature 205 °C,
Time 36000 sec		0.1% creep
 170 MPa
@Temperature 205 °C,
Time 360000 sec		0.5% creep
 180 MPa
@Temperature 205 °C,
Time 360000 sec		1% creep
 220 MPa
@Temperature 205 °C,
Time 36000 sec		0.2% creep
 230 MPa
@Temperature 150 °C,
Time 360000 sec		0.1% creep
 235 MPa
@Temperature 205 °C,
Time 3600 sec		0.1% creep
 240 MPa
@Temperature 205 °C,
Time 36000 sec		0.5% creep
 250 MPa
@Temperature 205 °C,
Time 36000 sec		1% creep
 255 MPa
@Temperature 205 °C,
Time 360 sec		0.1% creep
 260 MPa
@Temperature 205 °C,
Time 3600 sec		0.2% creep
 270 MPa
@Temperature 150 °C,
Time 3.60e+6 sec		0.2% creep
 275 MPa
@Temperature 205 °C,
Time 3600 sec		0.5% creep
 275 MPa
@Temperature 205 °C,
Time 360 sec		0.2% creep
 275 MPa
@Temperature 150 °C,
Time 36000 sec		0.1% creep
 285 MPa
@Temperature 150 °C,
Time 3600 sec		0.1% creep
 290 MPa
@Temperature 150 °C,
Time 3.60e+6 sec		1% creep
 290 MPa
@Temperature 150 °C,
Time 3.60e+6 sec		0.5% creep
 290 MPa
@Temperature 205 °C,
Time 360 sec		0.5% creep
 290 MPa
@Temperature 150 °C,
Time 360 sec		0.1% creep
 295 MPa
@Temperature 150 °C,
Time 360000 sec		0.2% creep
 305 MPa
@Temperature 205 °C,
Time 3600 sec		1% creep
 305 MPa
@Temperature 150 °C,
Time 36000 sec		0.2% creep
 310 MPa
@Temperature 150 °C,
Time 360000 sec		0.5% creep
 310 MPa
@Temperature 150 °C,
Time 3600 sec		0.2% creep
 315 MPa
@Temperature 205 °C,
Time 360 sec		1% creep
 315 MPa
@Temperature 150 °C,
Time 36000 sec		0.5% creep
 315 MPa
@Temperature 150 °C,
Time 360 sec		0.2% creep
 325 MPa
@Temperature 150 °C,
Time 360000 sec		1% creep
 325 MPa
@Temperature 150 °C,
Time 3600 sec		0.5% creep
 330 MPa
@Temperature 150 °C,
Time 360 sec		0.5% creep
 340 MPa
@Temperature 150 °C,
Time 36000 sec		1% creep
 345 MPa
@Temperature 150 °C,
Time 3600 sec		1% creep
 350 MPa
@Temperature 150 °C,
Time 360 sec		1% creep
Rupture Strength 27.0 MPa
@Temperature 315 °C,
Time 360000 sec
 45.0 MPa
@Temperature 315 °C,
Time 36000 sec
 48.0 MPa
@Temperature 315 °C,
Time 3600 sec
 55.0 MPa
@Temperature 315 °C,
Time 360 sec
 115 MPa
@Temperature 205 °C,
Time 3.60e+6 sec
 185 MPa
@Temperature 205 °C,
Time 360000 sec
 255 MPa
@Temperature 205 °C,
Time 36000 sec
 290 MPa
@Temperature 150 °C,
Time 3.60e+6 sec
 310 MPa
@Temperature 205 °C,
Time 3600 sec
 325 MPa
@Temperature 205 °C,
Time 360 sec
 330 MPa
@Temperature 150 °C,
Time 360000 sec
 350 MPa
@Temperature 150 °C,
Time 3600 sec
 350 MPa
@Temperature 150 °C,
Time 36000 sec
 360 MPa
@Temperature 150 °C,
Time 360 sec
 385 MPa
@Temperature 100 °C,
Time <=3.60e+6 sec
Modulus of Elasticity 74.4 GPaAverage of Tension and Compression. In Al alloys, the compressive modulus is typically 2% greater than the tensile modulus
Poissons Ratio 0.33
Fatigue Strength 31.0 MPa
@# of Cycles 5.00e+8 ,
Temperature 315 °C		R.R. Moore type test
 34.0 MPa
@# of Cycles 1.00e+8 ,
Temperature 315 °C		R.R. Moore type test
 41.0 MPa
@# of Cycles 5.00e+8 ,
Temperature 260 °C		R.R. Moore type test
 48.0 MPa
@# of Cycles 1.00e+8 ,
Temperature 260 °C		R.R. Moore type test
 48.0 MPa
@# of Cycles 1.00e+7 ,
Temperature 315 °C		R.R. Moore type test
 59.0 MPa
@# of Cycles 5.00e+8 ,
Temperature 205 °C		R.R. Moore type test
 69.0 MPa
@# of Cycles 1.00e+8 ,
Temperature 205 °C		R.R. Moore type test
 69.0 MPa
@# of Cycles 1.00e+6 ,
Temperature 315 °C		R.R. Moore type test
 72.0 MPa
@# of Cycles 1.00e+7 ,
Temperature 260 °C		R.R. Moore type test
 90.0 MPa
@# of Cycles 100000 ,
Temperature 315 °C		R.R. Moore type test
 100 MPa
@# of Cycles 5.00e+8 ,
Temperature 150 °C		R.R. Moore type test
 105 MPa
@# of Cycles 1.00e+8 ,
Temperature 150 °C		R.R. Moore type test
 105 MPa
@# of Cycles 1.00e+7 ,
Temperature 205 °C		R.R. Moore type test
 105 MPa
@# of Cycles 1.00e+6 ,
Temperature 260 °C		R.R. Moore type test
 125 MPa
@# of Cycles 5.00e+8 ,
Temperature 23.0 °C		R.R. Moore type test
 130 MPa
@# of Cycles 1.00e+7 ,
Temperature 150 °C		R.R. Moore type test
 135 MPa
@# of Cycles 1.00e+8 ,
Temperature 23.0 °C		R.R. Moore type test
 145 MPa
@# of Cycles 100000 ,
Temperature 260 °C		R.R. Moore type test
 150 MPa
@# of Cycles 1.00e+6 ,
Temperature 205 °C		R.R. Moore type test
 170 MPa
@# of Cycles 1.00e+7 ,
Temperature 23.0 °C		R.R. Moore type test
 170 MPa
@# of Cycles 1.00e+6 ,
Temperature 150 °C		R.R. Moore type test
 215 MPa
@# of Cycles 1.00e+6 ,
Temperature 23.0 °C		R.R. Moore type test
 270 MPa
@# of Cycles 100000 ,
Temperature 23.0 °C		R.R. Moore type test
 125 MPa
@# of Cycles 5.00e+8
Shear Modulus 27.5 GPa
Shear Strength 240 MPaCalculated value.
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.00000450 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 12.4 µin/in-°F
@Temperature 20.0 - 100 °C		AA; Typical; average over range
 20.7 µm/m-°C
@Temperature -50.0 - 20.0 °C
 22.4 µm/m-°C
@Temperature 20.0 - 100 °C
 23.3 µm/m-°C
@Temperature 20.0 - 200 °C
 24.2 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.880 J/g-°CEstimated from trends in similar Al alloys.
Thermal Conductivity 148 W/m-K
Melting Point 935 - 1180 °FAA; Typical range based on typical composition for wrought products >= 1/4 in. thickness. Eutectic melting is not eliminated by homogenization.
Solidus 935 °FAA; Typical
Liquidus 1180 °FAA; Typical
 
Processing PropertiesOriginal ValueComments
Solution Temperature 950 °F
Aging Temperature 340 °Ffor 10 hr at temperature
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al 88.8 - 93.6 %As remainder
Chromium, Cr <= 0.10 %
Copper, Cu 3.5 - 4.5 %
Iron, Fe <= 1.0 %
Magnesium, Mg 1.2 - 1.8 %
Manganese, Mn <= 0.20 %
Nickel, Ni 1.7 - 2.3 %
Other, each <= 0.05 %
Other, total <= 0.15 %
Silicon, Si <= 0.90 %
Zinc, Zn <= 0.25 %

References for this datasheet.

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MA2218T61a / 170638

Aluminum Castings




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