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C85400 Brass vs. C84200 Brass

Both C85400 brass and C84200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C85400 brass and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
15
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 220
250
Tensile Strength: Yield (Proof), MPa 85
120

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 940
990
Melting Onset (Solidus), °C 940
840
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 89
72
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
16
Electrical Conductivity: Equal Weight (Specific), % IACS 22
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 2.8
3.1
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
31
Resilience: Unit (Modulus of Resilience), kJ/m3 35
72
Stiffness to Weight: Axial, points 7.0
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 7.5
8.2
Strength to Weight: Bending, points 9.9
10
Thermal Diffusivity, mm2/s 28
23
Thermal Shock Resistance, points 7.6
9.1

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 65 to 70
78 to 82
Iron (Fe), % 0 to 0.7
0 to 0.4
Lead (Pb), % 1.5 to 3.8
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.050
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0.5 to 1.5
4.0 to 6.0
Zinc (Zn), % 24 to 32
10 to 16
Residuals, % 0
0 to 0.7