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CC331G Bronze vs. ACI-ASTM CF20 Steel

CC331G bronze belongs to the copper alloys classification, while ACI-ASTM CF20 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is CC331G bronze and the bottom bar is ACI-ASTM CF20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
160
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
50
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 620
530
Tensile Strength: Yield (Proof), MPa 240
250

Thermal Properties

Latent Heat of Fusion, J/g 230
300
Maximum Temperature: Mechanical, °C 220
970
Melting Completion (Liquidus), °C 1060
1420
Melting Onset (Solidus), °C 1000
1410
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 14
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
16
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 3.2
3.1
Embodied Energy, MJ/kg 53
44
Embodied Water, L/kg 390
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
220
Resilience: Unit (Modulus of Resilience), kJ/m3 250
160
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 21
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 17
4.3
Thermal Shock Resistance, points 22
11

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 83 to 86.5
0
Iron (Fe), % 1.5 to 3.5
64.2 to 74
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 0 to 1.5
8.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0