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SAE-AISI P21 Steel vs. C94500 Bronze

SAE-AISI P21 steel belongs to the iron alloys classification, while C94500 bronze belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P21 steel and the bottom bar is C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
92
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
34
Tensile Strength: Ultimate (UTS), MPa 1130
170

Thermal Properties

Latent Heat of Fusion, J/g 250
160
Melting Completion (Liquidus), °C 1450
940
Melting Onset (Solidus), °C 1410
800
Specific Heat Capacity, J/kg-K 470
330
Thermal Conductivity, W/m-K 41
52
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
30
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 2.3
3.2
Embodied Energy, MJ/kg 32
51
Embodied Water, L/kg 62
380

Common Calculations

Stiffness to Weight: Axial, points 13
5.5
Stiffness to Weight: Bending, points 24
16
Strength to Weight: Axial, points 40
5.2
Strength to Weight: Bending, points 31
7.4
Thermal Diffusivity, mm2/s 11
17
Thermal Shock Resistance, points 37
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Carbon (C), % 0.18 to 0.22
0
Chromium (Cr), % 0 to 0.5
0
Cobalt (Co), % 1.1 to 1.3
0
Copper (Cu), % 0 to 0.25
66.7 to 78
Iron (Fe), % 92.1 to 94.2
0 to 0.15
Lead (Pb), % 0
16 to 22
Manganese (Mn), % 0.35 to 0.72
0
Nickel (Ni), % 3.9 to 4.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0.2 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
6.0 to 8.0
Vanadium (V), % 0.15 to 0.25
0
Zinc (Zn), % 0
0 to 1.2