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C69700 Brass vs. C43400 Brass

Both C69700 brass and C43400 brass are copper alloys. They have a moderately high 91% 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 C43400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
3.0 to 49
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
42
Shear Strength, MPa 300
250 to 390
Tensile Strength: Ultimate (UTS), MPa 470
310 to 690
Tensile Strength: Yield (Proof), MPa 230
110 to 560

Thermal Properties

Latent Heat of Fusion, J/g 240
190
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 930
1020
Melting Onset (Solidus), °C 880
990
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 43
140
Thermal Expansion, µm/m-K 19
19

Otherwise Unclassified Properties

Base Metal Price, % relative 26
28
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
44
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
19 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
57 to 1420
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
10 to 22
Strength to Weight: Bending, points 16
12 to 20
Thermal Diffusivity, mm2/s 13
41
Thermal Shock Resistance, points 16
11 to 24

Alloy Composition

Copper (Cu), % 75 to 80
84 to 87
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
Silicon (Si), % 2.5 to 3.5
0
Tin (Sn), % 0
0.4 to 1.0
Zinc (Zn), % 13.9 to 22
11.4 to 15.6
Residuals, % 0
0 to 0.5