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C69400 Brass vs. C84200 Brass

Both C69400 brass and C84200 brass are copper alloys. They have a moderately high 94% 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 C69400 brass and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
15
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 570
250
Tensile Strength: Yield (Proof), MPa 270
120

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 170
150
Melting Completion (Liquidus), °C 920
990
Melting Onset (Solidus), °C 820
840
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 26
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
16
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
17

Otherwise Unclassified Properties

Base Metal Price, % relative 27
30
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 44
51
Embodied Water, L/kg 300
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
31
Resilience: Unit (Modulus of Resilience), kJ/m3 340
72
Stiffness to Weight: Axial, points 7.4
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 19
8.2
Strength to Weight: Bending, points 18
10
Thermal Diffusivity, mm2/s 7.7
23
Thermal Shock Resistance, points 20
9.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 80 to 83
78 to 82
Iron (Fe), % 0 to 0.2
0 to 0.4
Lead (Pb), % 0 to 0.3
2.0 to 3.0
Nickel (Ni), % 0
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 3.5 to 4.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 11.5 to 16.5
10 to 16
Residuals, % 0
0 to 0.7