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C87200 Bronze vs. SAE-AISI P21 Steel

C87200 bronze belongs to the copper alloys classification, while SAE-AISI P21 steel belongs to the iron 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 C87200 bronze and the bottom bar is SAE-AISI P21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Tensile Strength: Ultimate (UTS), MPa 380
1130

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 970
1450
Melting Onset (Solidus), °C 860
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 28
41
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 29
6.5
Density, g/cm3 8.6
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.3
Embodied Energy, MJ/kg 44
32
Embodied Water, L/kg 310
62

Common Calculations

Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12
40
Strength to Weight: Bending, points 14
31
Thermal Diffusivity, mm2/s 8.0
11
Thermal Shock Resistance, points 14
37

Alloy Composition

Aluminum (Al), % 0 to 1.5
0
Carbon (C), % 0
0.18 to 0.22
Chromium (Cr), % 0
0 to 0.5
Cobalt (Co), % 0
1.1 to 1.3
Copper (Cu), % 89 to 99
0 to 0.25
Iron (Fe), % 0 to 2.5
92.1 to 94.2
Lead (Pb), % 0 to 0.5
0
Manganese (Mn), % 0 to 1.5
0.35 to 0.72
Nickel (Ni), % 0
3.9 to 4.3
Phosphorus (P), % 0 to 0.5
0 to 0.030
Silicon (Si), % 1.0 to 5.0
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 1.0
0
Vanadium (V), % 0
0.15 to 0.25
Zinc (Zn), % 0 to 5.0
0