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M30 C48500 Brass vs. M30 C64200 Bronze

Both M30 C48500 brass and M30 C64200 bronze are copper alloys. Both are furnished in the M30 (as hot extruded) condition. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is M30 C48500 brass and the bottom bar is M30 C64200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 22
17
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
42
Shear Strength, MPa 250
340
Tensile Strength: Ultimate (UTS), MPa 400
550
Tensile Strength: Yield (Proof), MPa 160
230

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 900
1000
Melting Onset (Solidus), °C 890
980
Specific Heat Capacity, J/kg-K 380
430
Thermal Conductivity, W/m-K 120
45
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 29
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
50
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
76
Resilience: Unit (Modulus of Resilience), kJ/m3 120
240
Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 14
18
Strength to Weight: Bending, points 15
18
Thermal Diffusivity, mm2/s 38
13
Thermal Shock Resistance, points 13
20

Alloy Composition


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Aluminum (Al), % 0
6.3 to 7.6
Arsenic (As), % 0
0 to 0.15
Copper (Cu), % 59 to 62
88.2 to 92.2
Iron (Fe), % 0 to 0.1
0 to 0.3
Lead (Pb), % 1.3 to 2.2
0 to 0.050
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0
1.5 to 2.2
Tin (Sn), % 0.5 to 1.0
0 to 0.2
Zinc (Zn), % 34.3 to 39.2
0 to 0.5
Residuals, % 0 to 0.4
0 to 0.5