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C47940 Brass vs. C90400 Bronze

Both C47940 brass and C90400 bronze are copper alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C47940 brass and the bottom bar is C90400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 14 to 34
24
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 380 to 520
310
Tensile Strength: Yield (Proof), MPa 160 to 390
180

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 850
990
Melting Onset (Solidus), °C 800
850
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 110
75
Thermal Expansion, µm/m-K 20
18

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 8.2
8.7
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 47
56
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 100
65
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 740
150
Stiffness to Weight: Axial, points 7.1
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13 to 17
10
Strength to Weight: Bending, points 14 to 17
12
Thermal Diffusivity, mm2/s 36
23
Thermal Shock Resistance, points 13 to 17
11

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.020
Boron (B), % 0
0 to 0.1
Copper (Cu), % 63 to 66
86 to 89
Iron (Fe), % 0.1 to 1.0
0 to 0.4
Lead (Pb), % 1.0 to 2.0
0 to 0.090
Manganese (Mn), % 0
0 to 0.010
Nickel (Ni), % 0.1 to 0.5
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 1.2 to 2.0
7.5 to 8.5
Zinc (Zn), % 28.1 to 34.6
1.0 to 5.0
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.7