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C69700 Brass vs. C42500 Brass

Both C69700 brass and C42500 brass are copper alloys. They have 87% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C69700 brass and the bottom bar is C42500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
2.0 to 49
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
42
Shear Strength, MPa 300
220 to 360
Tensile Strength: Ultimate (UTS), MPa 470
310 to 630
Tensile Strength: Yield (Proof), MPa 230
120 to 590

Thermal Properties

Latent Heat of Fusion, J/g 240
200
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 930
1030
Melting Onset (Solidus), °C 880
1010
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 43
120
Thermal Expansion, µm/m-K 19
18

Otherwise Unclassified Properties

Base Metal Price, % relative 26
30
Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 44
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
12 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
64 to 1570
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 16
9.9 to 20
Strength to Weight: Bending, points 16
12 to 19
Thermal Diffusivity, mm2/s 13
36
Thermal Shock Resistance, points 16
11 to 22

Alloy Composition

Copper (Cu), % 75 to 80
87 to 90
Iron (Fe), % 0 to 0.2
0 to 0.050
Lead (Pb), % 0.5 to 1.5
0 to 0.050
Manganese (Mn), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.35
Silicon (Si), % 2.5 to 3.5
0
Tin (Sn), % 0
1.5 to 3.0
Zinc (Zn), % 13.9 to 22
6.1 to 11.5
Residuals, % 0
0 to 0.5