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Aluminum 2048-T851 Plate
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: UNS A92048; Aluminium 2048; AA2048; Al2048-T851
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 2.75 g/ccAA; Typical
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 122500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop 153Converted from Brinell Hardness Value
Hardness, Rockwell A 47.5Converted from Brinell Hardness Value
Hardness, Rockwell B 76Converted from Brinell Hardness Value
Hardness, Vickers 139Converted from Brinell Hardness Value
Tensile Strength, Ultimate 455 MPa
 230 MPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 234 MPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 345 MPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Transverse
 350 MPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
 414 MPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 414 MPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 457 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
 463 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Short transverse
 465 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
Tensile Strength, Yield 415 MPa
 220 MPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 220 MPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 338 MPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
 338 MPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Transverse
 388 MPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 395 MPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 406 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Short transverse
 416 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
 420 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
Elongation at Break 8.3 %
@Thickness 1.60 mm		In 5 cm
 6.0 %
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Short transverse
 7.0 %
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
 8.0 %
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
 8.0 %
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 10 %
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 13 %
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 13 %
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 14 %
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
Reduction of Area 9.0 %
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Short transverse
 12 %
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
 15 %
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 16 %
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
 23 %
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 28 %
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 32 %
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 34 %
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Transverse
 37 %
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
Creep Strength 31.0 MPa
@Thickness 75.0 mm,
Temperature 260 °C,
Time 3.60e+6 sec		Plate; Longitudinal
 60.0 MPa
@Thickness 75.0 mm,
Time 360000 sec,
Temperature 260 °C		Plate; Longitudinal
 131 MPa
@Thickness 75.0 mm,
Temperature 175 °C,
Time 3.60e+6 sec		Plate; Longitudinal
 241 MPa
@Thickness 75.0 mm,
Time 360000 sec,
Temperature 175 °C		Plate; Longitudinal
 283 MPa
@Thickness 75.0 mm,
Temperature 120 °C,
Time 3.60e+6 sec		Plate; Longitudinal
 303 MPa
@Thickness 75.0 mm,
Time 360000 sec,
Temperature 120 °C		Plate; Longitudinal
Rupture Strength 60.0 MPa
@Thickness 75.0 mm,
Temperature 260 °C,
Time 3.60e+6 sec		Plate; Longitudinal
 90.0 MPa
@Thickness 75.0 mm,
Time 360000 sec,
Temperature 260 °C		Plate; Longitudinal
 221 MPa
@Thickness 75.0 mm,
Temperature 175 °C,
Time 3.60e+6 sec		Plate; Longitudinal
 269 MPa
@Thickness 75.0 mm,
Time 360000 sec,
Temperature 175 °C		Plate; Longitudinal
 324 MPa
@Thickness 75.0 mm,
Temperature 120 °C,
Time 3.60e+6 sec		Plate; Longitudinal
 345 MPa
@Thickness 75.0 mm,
Time 360000 sec,
Temperature 120 °C		Plate; Longitudinal
Tensile Modulus 70.0 GPaCompressive modulus in is typically about 2% higher for Al alloys
 53.0 GPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 57.0 GPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 64.0 GPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
 64.0 GPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Transverse
 68.0 GPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 68.0 GPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 70.0 GPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
 72.0 GPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
 77.0 GPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Short transverse
Compressive Yield Strength 227 MPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 243 MPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 350 MPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
 350 MPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Transverse
 386 MPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 391 MPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 420 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
 420 MPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
Compressive Strength 420 MPa
 240 MPa
@Temperature 260 °C
 255 MPa
@Temperature 250 °C
 325 MPa
@Temperature 200 °C
 375 MPa
@Temperature 150 °C
 400 MPa
@Temperature 100 °C
 418 MPa
@Temperature 50.0 °C
 420 MPa
@Temperature 25.0 °C
Compressive Modulus 66.0 GPa
@Temperature 250 °C
 66.0 GPa
@Temperature 260 °C
 67.0 GPa
@Temperature 200 °C
 68.0 GPa
@Temperature 150 °C
 71.0 GPa
@Temperature 100 °C
 75.0 GPa
@Temperature 50.0 °C
 77.0 GPa
@Temperature 25.0 °C
 65.0 GPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Longitudinal
 66.0 GPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Longitudinal
 66.0 GPa
@Thickness 75.0 mm,
Temperature 260 °C		Plate; Transverse
 67.0 GPa
@Thickness 75.0 mm,
Temperature 175 °C		Plate; Transverse
 70.0 GPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Longitudinal
 71.0 GPa
@Thickness 75.0 mm,
Temperature 120 °C		Plate; Transverse
 77.0 GPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Transverse
 78.0 GPa
@Thickness 75.0 mm,
Temperature 23.0 °C		Plate; Longitudinal
Poissons Ratio 0.33Estimated from trends in similar Al alloys.
Fatigue Strength 220 MPa
@# of Cycles 5.00e+8
 82.0 MPa
@Temperature 175 °C,
# of Cycles 1.00e+7 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 97.0 MPa
@Temperature 120 °C,
# of Cycles 1.00e+7 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 110 MPa
@Temperature 23.0 °C,
# of Cycles 1.00e+7 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 131 MPa
@Temperature 175 °C,
# of Cycles 100000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 145 MPa
@Temperature 120 °C,
# of Cycles 100000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 152 MPa
@Temperature 23.0 °C,
# of Cycles 100000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 172 MPa
@Temperature 175 °C,
# of Cycles 1.00e+7 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 193 MPa
@Temperature 120 °C,
# of Cycles 1.00e+7 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 221 MPa
@Temperature 23.0 °C,
# of Cycles 1.00e+7 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 241 MPa
@Temperature 175 °C,
# of Cycles 100000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 255 MPa
@Temperature 120 °C,
# of Cycles 100000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 262 MPa
@Temperature 23.0 °C,
# of Cycles 100000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 344 MPa
@Temperature 175 °C,
# of Cycles 1000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 372 MPa
@Temperature 23.0 °C,
# of Cycles 1000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 372 MPa
@Temperature 120 °C,
# of Cycles 1000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Notched, Kt=3.0; R=0.1
 469 MPa
@Temperature 23.0 °C,
# of Cycles 1000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 469 MPa
@Temperature 120 °C,
# of Cycles 1000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
 469 MPa
@Temperature 175 °C,
# of Cycles 1000 ,
Thickness 75.0 mm		Plate; Axial fatigue (longitudinal); Unnotched, R=0.1
Fracture Toughness 31.9 MPa-m½K(IC) in T-L Direction
 35.2 MPa-m½K(IC) in L-T Direction
Shear Modulus 26.0 GPaEstimated from similar Al alloys.
Shear Strength 270 MPa
Charpy Impact 6.00 JTransverse
 10.3 JLongitudinal
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.00000400 ohm-cmT851 Temper
 
Thermal PropertiesOriginal ValueComments
CTE, linear 23.5 µm/m-°C
@Temperature 20.0 - 100 °C
 25.3 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.926 J/g-°C
Thermal Conductivity 159 W/m-KT851 Temper
Melting Point 520 - 645 °CEstimated from trends in similar Al alloys.
Solidus 520 °CEstimated from trends in similar Al alloys.
Liquidus 645 °C
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al 92.9 - 95.8 %As remainder
Copper, Cu 2.8 - 3.8 %
Iron, Fe <= 0.20 %
Magnesium, Mg 1.2 - 1.8 %
Manganese, Mn 0.20 - 0.60 %
Other, each <= 0.05 %
Other, total <= 0.15 %
Silicon, Si <= 0.15 %
Titanium, Ti <= 0.10 %
Zinc, Zn <= 0.25 %

References for this datasheet.

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