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C36500 Muntz Metal vs. C69300 Brass

Both C36500 Muntz Metal and C69300 brass are copper alloys. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is C36500 Muntz Metal and the bottom bar is C69300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 40
8.5 to 15
Poisson's Ratio 0.3
0.32
Rockwell B Hardness 45
84 to 88
Shear Modulus, GPa 39
41
Shear Strength, MPa 270
330 to 370
Tensile Strength: Ultimate (UTS), MPa 400
550 to 630
Tensile Strength: Yield (Proof), MPa 160
300 to 390

Thermal Properties

Latent Heat of Fusion, J/g 170
240
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 900
880
Melting Onset (Solidus), °C 890
860
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
38
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 32
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
26
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
47 to 70
Resilience: Unit (Modulus of Resilience), kJ/m3 120
400 to 700
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 14
19 to 21
Strength to Weight: Bending, points 15
18 to 20
Thermal Diffusivity, mm2/s 40
12
Thermal Shock Resistance, points 13
19 to 22

Alloy Composition

Copper (Cu), % 58 to 61
73 to 77
Iron (Fe), % 0 to 0.15
0 to 0.1
Lead (Pb), % 0.25 to 0.7
0 to 0.090
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0
0.040 to 0.15
Silicon (Si), % 0
2.7 to 3.4
Tin (Sn), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 37.5 to 41.8
18.4 to 24.3
Residuals, % 0
0 to 0.5