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ACI-ASTM CF20 Steel vs. CC491K Bronze

ACI-ASTM CF20 steel belongs to the iron alloys classification, while CC491K bronze belongs to the copper 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 ACI-ASTM CF20 steel and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
73
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 50
13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 530
260
Tensile Strength: Yield (Proof), MPa 250
120

Thermal Properties

Latent Heat of Fusion, J/g 300
190
Maximum Temperature: Mechanical, °C 970
160
Melting Completion (Liquidus), °C 1420
980
Melting Onset (Solidus), °C 1410
900
Specific Heat Capacity, J/kg-K 480
370
Thermal Conductivity, W/m-K 16
71
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
15
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
15

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 44
51
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
27
Resilience: Unit (Modulus of Resilience), kJ/m3 160
67
Stiffness to Weight: Axial, points 14
6.7
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 19
8.1
Strength to Weight: Bending, points 19
10
Thermal Diffusivity, mm2/s 4.3
22
Thermal Shock Resistance, points 11
9.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
81 to 87
Iron (Fe), % 64.2 to 74
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0 to 2.0
Phosphorus (P), % 0 to 0.040
0 to 0.1
Silicon (Si), % 0 to 2.0
0 to 0.010
Sulfur (S), % 0 to 0.040
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0
4.0 to 6.0