2018 (2018-T61) Aluminum
Wrought Aluminum Alloys
Property Overview
Density3.1g/cm³
Elastic Modulus73GPa
Tensile Strength420MPa
Yield Strength310MPa
Brinell Hardness120HB
Maximum Service Temperature220°C
Chemical Composition
CR
0 to 0.1%
NI
1.7 to 2.3%
MN
0 to 0.2%
SI
0 to 0.9%
CU
3.5 to 4.5%
AL
89.7 to 94.4%
MG
0.45 to 0.9%
RES.
Residuals res. | | 0 to 0.15%
RESIDUALS RES.
0 to 0.15%
ZN
0 to 0.25%
FE
0 to 1.0%
Mechanical
Elastic (Young's, Tensile) Modulus
73 GPa
Elongation at Break
9.6 %
Fatigue Strength
120 MPa
Poisson's Ratio
0.33
Shear Modulus
27 GPa
Shear Strength
270 MPa
Tensile Strength: Ultimate (UTS)
420 MPa
Tensile Strength: Yield (Proof)
310 MPa
Hardness
Brinell Hardness
120
Physical
Density
3.1 g/cm 3
Thermal
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
220 °C
Melting Completion (Liquidus)
640 °C
Melting Onset (Solidus)
510 °C
Specific Heat Capacity
870 J/kg-K
Thermal Conductivity
150 W/m-K
Thermal Diffusivity
57 mm 2 /s
Thermal Expansion
22 µm/m-K
Thermal Shock Resistance
19 points
Electrical
Electrical Conductivity: Equal Volume
40 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
37 MJ/m 3
Resilience: Unit (Modulus of Resilience)
670 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
45 points
Strength to Weight: Axial
38 points
Strength to Weight: Bending
41 points
Environmental
Base Metal Price
11 % relative
Embodied Carbon
8.1 kg CO 2 /kg material
Embodied Energy
150 MJ/kg
Embodied Energy
150 MJ/kg 64 x 10 3 BTU/lb
Embodied Water
1130 L/kg
Embodied Water
1130 L/kg 130 gal/lb
Registered Designations & Aliases
2018 (2018-T61) Aluminum2018-T61A92018EN AW-2018
Standards
ASTM B247 ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings
ASTM B247 ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002 Aluminum Standards and Data, Aluminum Association Inc., 2013 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993