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C69430 Brass vs. C38000 Brass

Both C69430 brass and C38000 brass are copper alloys. They have 72% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C69430 brass and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
39
Shear Strength, MPa 350
230
Tensile Strength: Ultimate (UTS), MPa 570
380
Tensile Strength: Yield (Proof), MPa 280
120

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 920
800
Melting Onset (Solidus), °C 820
760
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 26
110
Thermal Expansion, µm/m-K 18
21

Otherwise Unclassified Properties

Base Metal Price, % relative 27
22
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
46
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
50
Resilience: Unit (Modulus of Resilience), kJ/m3 340
74
Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19
13
Strength to Weight: Bending, points 18
14
Thermal Diffusivity, mm2/s 7.7
37
Thermal Shock Resistance, points 20
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 80 to 83
55 to 60
Iron (Fe), % 0 to 0.2
0 to 0.35
Lead (Pb), % 0 to 0.3
1.5 to 2.5
Silicon (Si), % 3.5 to 4.5
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 11.4 to 16.5
35.9 to 43.5
Residuals, % 0 to 0.5
0 to 0.5