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6151 Aluminum vs. C69300 Brass

6151 aluminum belongs to the aluminum alloys classification, while C69300 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6151 aluminum and the bottom bar is C69300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 5.7
8.5 to 15
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 190 to 200
330 to 370
Tensile Strength: Ultimate (UTS), MPa 330 to 340
550 to 630
Tensile Strength: Yield (Proof), MPa 270 to 280
300 to 390

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 650
880
Melting Onset (Solidus), °C 590
860
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 170
38
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 150
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
47 to 70
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
400 to 700
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 34
19 to 21
Strength to Weight: Bending, points 39
18 to 20
Thermal Diffusivity, mm2/s 70
12
Thermal Shock Resistance, points 15
19 to 22

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
0
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.35
73 to 77
Iron (Fe), % 0 to 1.0
0 to 0.1
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.2
0 to 0.1
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0
0.040 to 0.15
Silicon (Si), % 0.6 to 1.2
2.7 to 3.4
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
18.4 to 24.3
Residuals, % 0
0 to 0.5