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C68700 Brass vs. Chromium 33

C68700 brass belongs to the copper alloys classification, while chromium 33 belongs to the otherwise unclassified metals. There are 19 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 C68700 brass and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 41
81
Tensile Strength: Ultimate (UTS), MPa 390
850
Tensile Strength: Yield (Proof), MPa 140
430

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 19
14

Otherwise Unclassified Properties

Base Metal Price, % relative 26
36
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 2.8
6.0
Embodied Energy, MJ/kg 46
84
Embodied Water, L/kg 340
250

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
450
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13
30
Strength to Weight: Bending, points 14
25
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0
Arsenic (As), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
31 to 35
Copper (Cu), % 76 to 79
0.3 to 1.2
Iron (Fe), % 0 to 0.060
25.7 to 37.9
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 0
30 to 33
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 17.8 to 22.2
0
Residuals, % 0 to 0.5
0