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R05255 Alloy vs. C66700 Brass

R05255 alloy belongs to the otherwise unclassified metals classification, while C66700 brass belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is R05255 alloy and the bottom bar is C66700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
2.0 to 58
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 70
41
Tensile Strength: Ultimate (UTS), MPa 540
340 to 690
Tensile Strength: Yield (Proof), MPa 450
100 to 640

Thermal Properties

Latent Heat of Fusion, J/g 140
180
Specific Heat Capacity, J/kg-K 140
390
Thermal Conductivity, W/m-K 59
97
Thermal Expansion, µm/m-K 6.6
20

Otherwise Unclassified Properties

Density, g/cm3 17
8.2
Embodied Water, L/kg 630
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
13 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 530
49 to 1900
Stiffness to Weight: Axial, points 6.3
7.3
Stiffness to Weight: Bending, points 11
19
Strength to Weight: Axial, points 9.1
11 to 23
Strength to Weight: Bending, points 8.9
13 to 21
Thermal Diffusivity, mm2/s 25
30
Thermal Shock Resistance, points 31
11 to 23

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
68.5 to 71.5
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0
0.8 to 1.5
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 95.9 to 98
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0
26.3 to 30.7
Residuals, % 0
0 to 0.5