7175 (AlZn5.5MgCu(B), 3.4334) Aluminum
Wrought Aluminum Alloys
T74
Property Overview
Density3g/cm³
Elastic Modulus70GPa
Tensile Strength520MPa
Yield Strength460MPa
Brinell Hardness140HB
Maximum Service Temperature180°C
Chemical Composition
CR
0.18 to 0.28%
MN
0 to 0.1%
SI
0 to 0.15%
CU
1.2 to 2.0%
TI
0 to 0.1%
AL
88 to 91.4%
MG
2.1 to 2.9%
RES.
Residuals res. | | 0 to 0.15%
RESIDUALS RES.
0 to 0.15%
ZN
5.1 to 6.1%
FE
0 to 0.2%
Mechanical
Elastic (Young's, Tensile) Modulus
70 GPa
Elongation at Break
5.9 %
Fatigue Strength
160 MPa
Poisson's Ratio
0.32
Shear Modulus
26 GPa
Shear Strength
290 MPa
Tensile Strength: Ultimate (UTS)
520 MPa
Tensile Strength: Yield (Proof)
460 MPa
Hardness
Brinell Hardness
140
Physical
Density
3.0 g/cm 3
Thermal
Latent Heat of Fusion
380 J/g
Maximum Temperature: Mechanical
180 °C
Melting Completion (Liquidus)
640 °C
Melting Onset (Solidus)
480 °C
Specific Heat Capacity
870 J/kg-K
Thermal Conductivity
140 W/m-K
Thermal Diffusivity
53 mm 2 /s
Thermal Expansion
23 µm/m-K
Thermal Shock Resistance
23 points
Electrical
Electrical Conductivity: Equal Volume
33 % IACS
Electrical Conductivity: Equal Weight (Specific)
99 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
29 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1540 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
46 points
Strength to Weight: Axial
48 points
Strength to Weight: Bending
48 points
Environmental
Base Metal Price
10 % relative
Embodied Carbon
8.2 kg CO 2 /kg material
Embodied Energy
150 MJ/kg
Embodied Energy
150 MJ/kg 63 x 10 3 BTU/lb
Embodied Water
1130 L/kg
Embodied Water
1130 L/kg 130 gal/lb
Registered Designations & Aliases
3.43347175 (AlZn5.5MgCu(B), 3.4334) AluminumA97175AlZn5.5MgCu(BEN AW-7175
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 Aluminum Standards and Data, Aluminum Association Inc., 2013
EN 573-3 EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products