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C38000 Brass vs. C69400 Brass

Both C38000 brass and C69400 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 C38000 brass and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 17
17
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
42
Shear Strength, MPa 230
350
Tensile Strength: Ultimate (UTS), MPa 380
570
Tensile Strength: Yield (Proof), MPa 120
270

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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