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R60705 Alloy vs. C87700 Bronze

R60705 alloy belongs to the otherwise unclassified metals classification, while C87700 bronze belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
110
Elongation at Break, % 18
3.6
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 37
42
Tensile Strength: Ultimate (UTS), MPa 540
300
Tensile Strength: Yield (Proof), MPa 430
120

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
400
Thermal Conductivity, W/m-K 17
120
Thermal Expansion, µm/m-K 6.3
18

Otherwise Unclassified Properties

Density, g/cm3 6.7
8.5
Embodied Water, L/kg 450
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 950
64
Stiffness to Weight: Axial, points 8.1
7.4
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 22
9.8
Strength to Weight: Bending, points 22
12
Thermal Diffusivity, mm2/s 9.5
34
Thermal Shock Resistance, points 63
11

Alloy Composition

Antimony (Sb), % 0
0 to 0.1
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0
87.5 to 90.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
0 to 0.5
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0
2.5 to 3.5
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 0
7.0 to 9.0
Zirconium (Zr), % 91 to 98
0
Residuals, % 0
0 to 0.8