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C28500 Muntz Metal vs. C69430 Brass

Both C28500 Muntz Metal and C69430 brass are copper alloys. They have 72% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 20
17
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 40
42
Shear Strength, MPa 320
350
Tensile Strength: Ultimate (UTS), MPa 520
570
Tensile Strength: Yield (Proof), MPa 380
280

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 900
920
Melting Onset (Solidus), °C 890
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 100
26
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 33
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
27
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
44
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
80
Resilience: Unit (Modulus of Resilience), kJ/m3 700
340
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 33
7.7
Thermal Shock Resistance, points 17
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 57 to 59
80 to 83
Iron (Fe), % 0 to 0.35
0 to 0.2
Lead (Pb), % 0 to 0.25
0 to 0.3
Silicon (Si), % 0
3.5 to 4.5
Zinc (Zn), % 39.5 to 43
11.4 to 16.5
Residuals, % 0
0 to 0.5