7020 (AlZn4.5Mg1, 3.4335, H17, A97020) Aluminum
Wrought Aluminum Alloys
annealed
Property Overview
Density2.9g/cm³
Elastic Modulus70GPa
Tensile Strength190MPa
Yield Strength120MPa
Brinell Hardness45HB
Maximum Service Temperature210°C
Chemical Composition
CR
0.1 to 0.35%
MN
0.050 to 0.5%
SI
0 to 0.35%
CU
0 to 0.2%
TI
0 to 0.25%
AL
91.2 to 94.8%
MG
1.0 to 1.4%
RES.
Residuals res. | | 0 to 0.15%
RESIDUALS RES.
0 to 0.15%
ZN
4.0 to 5.0%
ZR
0.080 to 0.25%
FE
0 to 0.4%
Mechanical
Elastic (Young's, Tensile) Modulus
70 GPa
Elongation at Break
14 %
Fatigue Strength
130 MPa
Poisson's Ratio
0.33
Shear Modulus
26 GPa
Shear Strength
110 MPa
Tensile Strength: Ultimate (UTS)
190 MPa
Tensile Strength: Yield (Proof)
120 MPa
Hardness
Brinell Hardness
45
Physical
Density
2.9 g/cm 3
Thermal
Latent Heat of Fusion
380 J/g
Maximum Temperature: Mechanical
210 °C
Melting Completion (Liquidus)
650 °C
Melting Onset (Solidus)
610 °C
Specific Heat Capacity
880 J/kg-K
Thermal Conductivity
150 W/m-K
Thermal Diffusivity
59 mm 2 /s
Thermal Expansion
23 µm/m-K
Thermal Shock Resistance
8.3 points
Electrical
Electrical Conductivity: Equal Volume
39 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
23 MJ/m 3
Resilience: Unit (Modulus of Resilience)
110 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
47 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
25 points
Environmental
Base Metal Price
9.5 % relative
Embodied Carbon
8.3 kg CO 2 /kg material
Embodied Energy
150 MJ/kg
Embodied Energy
150 MJ/kg 65 x 10 3 BTU/lb
Embodied Water
1150 L/kg
Embodied Water
1150 L/kg 140 gal/lb
Registered Designations & Aliases
3.43357020 (AlZn4.5Mg1, 3.4335, H17, A97020) AluminumA97020AlZn4.5Mg1EN AW-7020H17
Standards
EN 485-2 EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties
EN 573-3 EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products
EN 754-2 EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties
EN 755-2 EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties
ISO 6361-2 ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties