4343 (BAlSi-2, AlSi7.5) Aluminum
Wrought Aluminum Alloys
Property Overview
Density2.6g/cm³
Elastic Modulus71GPa
Tensile Strength110MPa
Yield Strength62MPa
Brinell HardnessUnknown
Maximum Service Temperature160°C
Chemical Composition
MN
0 to 0.1%
SI
6.8 to 8.2%
CU
0 to 0.25%
AL
90.3 to 93.2%
RES.
Residuals res. | | 0 to 0.15%
RESIDUALS RES.
0 to 0.15%
ZN
0 to 0.2%
FE
0 to 0.8%
Mechanical
Elastic (Young's, Tensile) Modulus
71 GPa
Elongation at Break
4.4 %
Fatigue Strength
45 MPa
Poisson's Ratio
0.33
Shear Modulus
27 GPa
Shear Strength
64 MPa
Tensile Strength: Ultimate (UTS)
110 MPa
Tensile Strength: Yield (Proof)
62 MPa
Physical
Density
2.6 g/cm 3
Thermal
Brazing Temperature
600 to 620 °C
Latent Heat of Fusion
510 J/g
Maximum Temperature: Mechanical
160 °C
Melting Completion (Liquidus)
620 °C
Melting Onset (Solidus)
580 °C
Specific Heat Capacity
900 J/kg-K
Thermal Conductivity
180 W/m-K
Thermal Diffusivity
77 mm 2 /s
Thermal Expansion
22 µm/m-K
Thermal Shock Resistance
5.2 points
Electrical
Electrical Conductivity: Equal Volume
44 % IACS
Electrical Conductivity: Equal Weight (Specific)
150 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
4.1 MJ/m 3
Resilience: Unit (Modulus of Resilience)
27 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
53 points
Strength to Weight: Axial
12 points
Strength to Weight: Bending
20 points
Environmental
Base Metal Price
9.5 % relative
Embodied Carbon
7.9 kg CO 2 /kg material
Embodied Energy
150 MJ/kg
Embodied Energy
150 MJ/kg 64 x 10 3 BTU/lb
Embodied Water
1100 L/kg
Embodied Water
1100 L/kg 130 gal/lb
Registered Designations & Aliases
4343 (BAlSi-2, AlSi7.5) AluminumA94343AlSi7.5BAlSi-2EN AW-4343
Standards
EN 573-3 EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products