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ACI-ASTM CH20 Steel vs. C61400 Bronze

ACI-ASTM CH20 steel belongs to the iron alloys classification, while C61400 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH20 steel and the bottom bar is C61400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 38
34 to 40
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
43
Tensile Strength: Ultimate (UTS), MPa 610
540 to 570
Tensile Strength: Yield (Proof), MPa 350
220 to 270

Thermal Properties

Latent Heat of Fusion, J/g 310
220
Maximum Temperature: Mechanical, °C 1100
220
Melting Completion (Liquidus), °C 1410
1050
Melting Onset (Solidus), °C 1430
1040
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 14
67
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
14
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
15

Otherwise Unclassified Properties

Base Metal Price, % relative 20
28
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.7
3.0
Embodied Energy, MJ/kg 53
48
Embodied Water, L/kg 180
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
160 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 300
210 to 310
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22
18 to 19
Strength to Weight: Bending, points 21
17 to 18
Thermal Diffusivity, mm2/s 3.7
19
Thermal Shock Resistance, points 15
18 to 20

Alloy Composition

Aluminum (Al), % 0
6.0 to 8.0
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
86 to 92.5
Iron (Fe), % 54.7 to 66
1.5 to 3.5
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5