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C34200 Brass vs. C51900 Bronze

Both C34200 brass and C51900 bronze are copper alloys. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is C34200 brass and the bottom bar is C51900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 3.0 to 17
14 to 29
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 53 to 91
42 to 91
Rockwell Superficial 30T Hardness 52 to 78
45 to 76
Shear Modulus, GPa 40
42
Shear Strength, MPa 230 to 360
320 to 370
Tensile Strength: Ultimate (UTS), MPa 370 to 650
380 to 620
Tensile Strength: Yield (Proof), MPa 150 to 420
390 to 570

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 910
1040
Melting Onset (Solidus), °C 890
930
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 120
66
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
14
Electrical Conductivity: Equal Weight (Specific), % IACS 29
14

Otherwise Unclassified Properties

Base Metal Price, % relative 24
33
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 2.6
3.2
Embodied Energy, MJ/kg 45
51
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 98
55 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 870
680 to 1450
Stiffness to Weight: Axial, points 7.1
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13 to 22
12 to 19
Strength to Weight: Bending, points 14 to 20
13 to 18
Thermal Diffusivity, mm2/s 37
20
Thermal Shock Resistance, points 12 to 22
14 to 22

Alloy Composition

Copper (Cu), % 62 to 65
91.7 to 95
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 1.5 to 2.5
0 to 0.050
Phosphorus (P), % 0
0.030 to 0.35
Tin (Sn), % 0
5.0 to 7.0
Zinc (Zn), % 32 to 36.5
0 to 0.3
Residuals, % 0
0 to 0.5

Comparable Variants