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ACI-ASTM CH20 Steel vs. C90300 Bronze

ACI-ASTM CH20 steel belongs to the iron alloys classification, while C90300 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH20 steel and the bottom bar is C90300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 38
22
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 610
330
Tensile Strength: Yield (Proof), MPa 350
150

Thermal Properties

Latent Heat of Fusion, J/g 310
190
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1410
1000
Melting Onset (Solidus), °C 1430
850
Specific Heat Capacity, J/kg-K 480
370
Thermal Conductivity, W/m-K 14
75
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
33
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.7
3.4
Embodied Energy, MJ/kg 53
56
Embodied Water, L/kg 180
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
59
Resilience: Unit (Modulus of Resilience), kJ/m3 300
110
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 22
11
Strength to Weight: Bending, points 21
12
Thermal Diffusivity, mm2/s 3.7
23
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
86 to 89
Iron (Fe), % 54.7 to 66
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 1.5
Silicon (Si), % 0 to 2.0
0 to 0.0050
Sulfur (S), % 0 to 0.040
0 to 0.050
Tin (Sn), % 0
7.5 to 9.0
Zinc (Zn), % 0
3.0 to 5.0
Residuals, % 0
0 to 0.6