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C27400 Brass vs. C52100 Bronze

Both C27400 brass and C52100 bronze are copper alloys. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is C27400 brass and the bottom bar is C52100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 53 to 91
45 to 100
Rockwell Superficial 30T Hardness 52 to 78
48 to 82
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 370 to 650
380 to 800

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 920
1030
Melting Onset (Solidus), °C 870
880
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 120
62
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
13
Electrical Conductivity: Equal Weight (Specific), % IACS 31
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
34
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 45
55
Embodied Water, L/kg 320
370

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.0
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 13 to 23
12 to 25
Strength to Weight: Bending, points 14 to 21
13 to 22
Thermal Diffusivity, mm2/s 37
19
Thermal Shock Resistance, points 12 to 22
14 to 28

Alloy Composition

Copper (Cu), % 61 to 64
89.8 to 93
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.050
0 to 0.050
Phosphorus (P), % 0
0.030 to 0.35
Tin (Sn), % 0
7.0 to 9.0
Zinc (Zn), % 35.6 to 39
0 to 0.2
Residuals, % 0
0 to 0.5

Comparable Variants