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C21000 Brass vs. C93900 Bronze

Both C21000 brass and C93900 bronze are copper alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is C93900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
95
Elongation at Break, % 2.9 to 50
5.6
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 43
35
Tensile Strength: Ultimate (UTS), MPa 240 to 450
190
Tensile Strength: Yield (Proof), MPa 69 to 440
130

Thermal Properties

Latent Heat of Fusion, J/g 200
170
Maximum Temperature: Mechanical, °C 190
140
Melting Completion (Liquidus), °C 1070
940
Melting Onset (Solidus), °C 1050
850
Specific Heat Capacity, J/kg-K 390
340
Thermal Conductivity, W/m-K 230
52
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
11
Electrical Conductivity: Equal Weight (Specific), % IACS 57
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
30
Density, g/cm3 8.8
9.1
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 42
49
Embodied Water, L/kg 310
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
9.5
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
83
Stiffness to Weight: Axial, points 7.2
5.8
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 7.4 to 14
5.9
Strength to Weight: Bending, points 9.6 to 15
8.1
Thermal Diffusivity, mm2/s 69
17
Thermal Shock Resistance, points 8.1 to 15
7.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 94 to 96
76.5 to 79.5
Iron (Fe), % 0 to 0.050
0 to 0.4
Lead (Pb), % 0 to 0.030
14 to 18
Nickel (Ni), % 0
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
5.0 to 7.0
Zinc (Zn), % 3.7 to 6.0
0 to 1.5
Residuals, % 0
0 to 1.1