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C85400 Brass vs. C84100 Brass

Both C85400 brass and C84100 brass are copper alloys. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is C85400 brass and the bottom bar is C84100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
65
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
13
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 220
230
Tensile Strength: Yield (Proof), MPa 85
81

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 940
1000
Melting Onset (Solidus), °C 940
810
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
23
Electrical Conductivity: Equal Weight (Specific), % IACS 22
25

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 46
48
Embodied Water, L/kg 330
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
24
Resilience: Unit (Modulus of Resilience), kJ/m3 35
30
Stiffness to Weight: Axial, points 7.0
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 7.5
7.4
Strength to Weight: Bending, points 9.9
9.7
Thermal Diffusivity, mm2/s 28
33
Thermal Shock Resistance, points 7.6
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.010
Antimony (Sb), % 0
0 to 0.050
Bismuth (Bi), % 0
0 to 0.090
Copper (Cu), % 65 to 70
78 to 85
Iron (Fe), % 0 to 0.7
0 to 0.3
Lead (Pb), % 1.5 to 3.8
0.050 to 0.25
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.050
0 to 0.010
Tin (Sn), % 0.5 to 1.5
1.5 to 4.5
Zinc (Zn), % 24 to 32
12 to 20
Residuals, % 0
0 to 0.5