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C85400 Brass vs. C95200 Bronze

Both C85400 brass and C95200 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is C85400 brass and the bottom bar is C95200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
120
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
29
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 220
520
Tensile Strength: Yield (Proof), MPa 85
190

Thermal Properties

Latent Heat of Fusion, J/g 180
230
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 940
1050
Melting Onset (Solidus), °C 940
1040
Specific Heat Capacity, J/kg-K 380
430
Thermal Conductivity, W/m-K 89
50
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
11
Electrical Conductivity: Equal Weight (Specific), % IACS 22
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
28
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
50
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
120
Resilience: Unit (Modulus of Resilience), kJ/m3 35
170
Stiffness to Weight: Axial, points 7.0
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 7.5
17
Strength to Weight: Bending, points 9.9
17
Thermal Diffusivity, mm2/s 28
14
Thermal Shock Resistance, points 7.6
19

Alloy Composition

Aluminum (Al), % 0 to 0.35
8.5 to 9.5
Copper (Cu), % 65 to 70
86 to 89
Iron (Fe), % 0 to 0.7
2.5 to 4.0
Lead (Pb), % 1.5 to 3.8
0
Nickel (Ni), % 0 to 1.0
0
Silicon (Si), % 0 to 0.050
0
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 24 to 32
0
Residuals, % 0
0 to 1.0