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C34000 Brass vs. C47940 Brass

Both C34000 brass and C47940 brass are copper alloys. They have a very high 96% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C34000 brass and the bottom bar is C47940 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 340 to 650
380 to 520

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 930
850
Melting Onset (Solidus), °C 890
800
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 21
20

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 320
330

Common Calculations

Stiffness to Weight: Axial, points 7.1
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 22
13 to 17
Strength to Weight: Bending, points 13 to 21
14 to 17
Thermal Diffusivity, mm2/s 37
36
Thermal Shock Resistance, points 11 to 22
13 to 17

Alloy Composition

Copper (Cu), % 62 to 65
63 to 66
Iron (Fe), % 0 to 0.1
0.1 to 1.0
Lead (Pb), % 0.8 to 1.5
1.0 to 2.0
Nickel (Ni), % 0
0.1 to 0.5
Tin (Sn), % 0
1.2 to 2.0
Zinc (Zn), % 33 to 37.2
28.1 to 34.6
Residuals, % 0
0 to 0.4

Comparable Variants