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ACI-ASTM CK20 Steel vs. C94500 Bronze

ACI-ASTM CK20 steel belongs to the iron alloys classification, while C94500 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 CK20 steel and the bottom bar is C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
50
Elastic (Young's, Tensile) Modulus, GPa 200
92
Elongation at Break, % 37
12
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 78
34
Tensile Strength: Ultimate (UTS), MPa 530
170
Tensile Strength: Yield (Proof), MPa 260
83

Thermal Properties

Latent Heat of Fusion, J/g 310
160
Maximum Temperature: Mechanical, °C 1100
130
Melting Completion (Liquidus), °C 1400
940
Melting Onset (Solidus), °C 1430
800
Specific Heat Capacity, J/kg-K 480
330
Thermal Conductivity, W/m-K 14
52
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 4.4
3.2
Embodied Energy, MJ/kg 62
51
Embodied Water, L/kg 190
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
17
Resilience: Unit (Modulus of Resilience), kJ/m3 170
37
Stiffness to Weight: Axial, points 14
5.5
Stiffness to Weight: Bending, points 25
16
Strength to Weight: Axial, points 19
5.2
Strength to Weight: Bending, points 19
7.4
Thermal Diffusivity, mm2/s 3.7
17
Thermal Shock Resistance, points 13
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
66.7 to 78
Iron (Fe), % 46.7 to 58
0 to 0.15
Lead (Pb), % 0
16 to 22
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 2.0
0 to 0.0050
Sulfur (S), % 0 to 0.040
0 to 0.080
Tin (Sn), % 0
6.0 to 8.0
Zinc (Zn), % 0
0 to 1.2