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C21000 Brass vs. R60704 Alloy

C21000 brass belongs to the copper alloys classification, while R60704 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is R60704 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
97
Elongation at Break, % 2.9 to 50
16
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
36
Tensile Strength: Ultimate (UTS), MPa 240 to 450
470
Tensile Strength: Yield (Proof), MPa 69 to 440
270

Thermal Properties

Latent Heat of Fusion, J/g 200
240
Specific Heat Capacity, J/kg-K 390
270
Thermal Conductivity, W/m-K 230
22
Thermal Expansion, µm/m-K 18
6.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
6.7
Embodied Water, L/kg 310
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
64
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
370
Stiffness to Weight: Axial, points 7.2
8.1
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 7.4 to 14
20
Strength to Weight: Bending, points 9.6 to 15
20
Thermal Diffusivity, mm2/s 69
12
Thermal Shock Resistance, points 8.1 to 15
58

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0.2 to 0.4
Copper (Cu), % 94 to 96
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 0.050
0.2 to 0.4
Lead (Pb), % 0 to 0.030
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Tin (Sn), % 0
1.0 to 2.0
Zinc (Zn), % 3.7 to 6.0
0
Zirconium (Zr), % 0
93 to 98.8
Residuals, % 0 to 0.2
0