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C90200 Bronze vs. ACI-ASTM CF20 Steel

C90200 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 C90200 bronze and the bottom bar is ACI-ASTM CF20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
160
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 30
50
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 260
530
Tensile Strength: Yield (Proof), MPa 110
250

Thermal Properties

Latent Heat of Fusion, J/g 200
300
Maximum Temperature: Mechanical, °C 180
970
Melting Completion (Liquidus), °C 1050
1420
Melting Onset (Solidus), °C 880
1410
Specific Heat Capacity, J/kg-K 370
480
Thermal Conductivity, W/m-K 62
16
Thermal Expansion, µm/m-K 18
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 34
16
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
3.1
Embodied Energy, MJ/kg 53
44
Embodied Water, L/kg 370
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
220
Resilience: Unit (Modulus of Resilience), kJ/m3 55
160
Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.3
19
Strength to Weight: Bending, points 10
19
Thermal Diffusivity, mm2/s 19
4.3
Thermal Shock Resistance, points 9.5
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 91 to 94
0
Iron (Fe), % 0 to 0.2
64.2 to 74
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.5
8.0 to 11
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0 to 0.0050
0 to 2.0
Sulfur (S), % 0 to 0.050
0 to 0.040
Tin (Sn), % 6.0 to 8.0
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.6
0