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C37000 Muntz Metal vs. C48600 Brass

Both C37000 Muntz Metal and C48600 brass are copper alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is C37000 Muntz Metal and the bottom bar is C48600 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 40
20 to 25
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 45
55 to 58
Shear Modulus, GPa 39
39
Shear Strength, MPa 270
180 to 230
Tensile Strength: Ultimate (UTS), MPa 400
280 to 360
Tensile Strength: Yield (Proof), MPa 160
110 to 170

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 900
900
Melting Onset (Solidus), °C 890
890
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
25
Electrical Conductivity: Equal Weight (Specific), % IACS 30
28

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
55 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 120
61 to 140
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 14
9.5 to 12
Strength to Weight: Bending, points 15
12 to 14
Thermal Diffusivity, mm2/s 39
36
Thermal Shock Resistance, points 13
9.3 to 12

Alloy Composition

Arsenic (As), % 0
0.020 to 0.25
Copper (Cu), % 59 to 62
59 to 62
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 0.8 to 1.5
1.0 to 2.5
Tin (Sn), % 0
0.3 to 1.5
Zinc (Zn), % 36 to 40.2
33.4 to 39.7
Residuals, % 0
0 to 0.4