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C84200 Brass vs. C93800 Bronze

Both C84200 brass and C93800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is C84200 brass and the bottom bar is C93800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
96
Elongation at Break, % 15
9.7
Poisson's Ratio 0.33
0.35
Shear Modulus, GPa 40
35
Tensile Strength: Ultimate (UTS), MPa 250
200
Tensile Strength: Yield (Proof), MPa 120
120

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 150
140
Melting Completion (Liquidus), °C 990
940
Melting Onset (Solidus), °C 840
850
Specific Heat Capacity, J/kg-K 370
340
Thermal Conductivity, W/m-K 72
52
Thermal Expansion, µm/m-K 19
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
11
Electrical Conductivity: Equal Weight (Specific), % IACS 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.5
9.1
Embodied Carbon, kg CO2/kg material 3.1
3.2
Embodied Energy, MJ/kg 51
51
Embodied Water, L/kg 350
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
17
Resilience: Unit (Modulus of Resilience), kJ/m3 72
70
Stiffness to Weight: Axial, points 6.9
5.9
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 8.2
6.1
Strength to Weight: Bending, points 10
8.4
Thermal Diffusivity, mm2/s 23
17
Thermal Shock Resistance, points 9.1
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.8
Copper (Cu), % 78 to 82
75 to 79
Iron (Fe), % 0 to 0.4
0 to 0.15
Lead (Pb), % 2.0 to 3.0
13 to 16
Nickel (Ni), % 0 to 0.8
0 to 1.0
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.080
Tin (Sn), % 4.0 to 6.0
6.3 to 7.5
Zinc (Zn), % 10 to 16
0 to 0.8
Residuals, % 0
0 to 1.0