4145 (BAlSi-3) Aluminum
Wrought Aluminum Alloys
Property Overview
Density2.8g/cm³
Elastic Modulus73GPa
Tensile Strength120MPa
Yield Strength68MPa
Brinell HardnessUnknown
Maximum Service Temperature160°C
Chemical Composition
CR
0 to 0.15%
MN
0 to 0.15%
SI
9.3 to 10.7%
CU
3.3 to 4.7%
AL
83 to 87.4%
MG
0 to 0.15%
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
73 GPa
Elongation at Break
2.2 %
Fatigue Strength
48 MPa
Poisson's Ratio
0.33
Shear Modulus
28 GPa
Shear Strength
69 MPa
Tensile Strength: Ultimate (UTS)
120 MPa
Tensile Strength: Yield (Proof)
68 MPa
Physical
Density
2.8 g/cm 3
Thermal
Brazing Temperature
570 to 600 °C
Latent Heat of Fusion
540 J/g
Maximum Temperature: Mechanical
160 °C
Melting Completion (Liquidus)
590 °C
Melting Onset (Solidus)
520 °C
Specific Heat Capacity
880 J/kg-K
Thermal Conductivity
100 W/m-K
Thermal Diffusivity
42 mm 2 /s
Thermal Expansion
21 µm/m-K
Thermal Shock Resistance
5.5 points
Electrical
Electrical Conductivity: Equal Volume
26 % IACS
Electrical Conductivity: Equal Weight (Specific)
84 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
2.3 MJ/m 3
Resilience: Unit (Modulus of Resilience)
31 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
12 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
10 % relative
Embodied Carbon
7.6 kg CO 2 /kg material
Embodied Energy
140 MJ/kg
Embodied Energy
140 MJ/kg 61 x 10 3 BTU/lb
Embodied Water
1040 L/kg
Embodied Water
1040 L/kg 120 gal/lb
Registered Designations & Aliases
4145 (BAlSi-3) AluminumA94145BAlSi-3EN AW-4145