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C91000 Bronze vs. C84100 Brass

Both C91000 bronze and C84100 brass are copper alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is C91000 bronze and the bottom bar is C84100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
65
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 7.0
13
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 39
39
Tensile Strength: Ultimate (UTS), MPa 230
230
Tensile Strength: Yield (Proof), MPa 150
81

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 960
1000
Melting Onset (Solidus), °C 820
810
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 64
110
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
23
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
25

Otherwise Unclassified Properties

Base Metal Price, % relative 37
29
Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 4.1
2.9
Embodied Energy, MJ/kg 67
48
Embodied Water, L/kg 420
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
24
Resilience: Unit (Modulus of Resilience), kJ/m3 100
30
Stiffness to Weight: Axial, points 6.8
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.5
7.4
Strength to Weight: Bending, points 9.7
9.7
Thermal Diffusivity, mm2/s 20
33
Thermal Shock Resistance, points 8.8
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.010
Antimony (Sb), % 0 to 0.2
0 to 0.050
Bismuth (Bi), % 0
0 to 0.090
Copper (Cu), % 84 to 86
78 to 85
Iron (Fe), % 0 to 0.1
0 to 0.3
Lead (Pb), % 0 to 0.2
0.050 to 0.25
Nickel (Ni), % 0 to 0.8
0 to 0.5
Phosphorus (P), % 0 to 1.5
0 to 0.050
Silicon (Si), % 0 to 0.0050
0 to 0.010
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 14 to 16
1.5 to 4.5
Zinc (Zn), % 0 to 1.5
12 to 20
Residuals, % 0
0 to 0.5