MakeItFrom.com
Menu (ESC)

SAE-AISI P21 Steel vs. C31400 Bronze

SAE-AISI P21 steel belongs to the iron alloys classification, while C31400 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 C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
42
Tensile Strength: Ultimate (UTS), MPa 1130
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 250
200
Melting Completion (Liquidus), °C 1450
1040
Melting Onset (Solidus), °C 1410
1010
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 41
180
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
42
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
43

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
29
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 2.3
2.6
Embodied Energy, MJ/kg 32
42
Embodied Water, L/kg 62
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 40
8.7 to 13
Strength to Weight: Bending, points 31
11 to 14
Thermal Diffusivity, mm2/s 11
54
Thermal Shock Resistance, points 37
9.6 to 15

Alloy Composition

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
87.5 to 90.5
Iron (Fe), % 92.1 to 94.2
0 to 0.1
Lead (Pb), % 0
1.3 to 2.5
Manganese (Mn), % 0.35 to 0.72
0
Nickel (Ni), % 3.9 to 4.3
0 to 0.7
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.15 to 0.25
0
Zinc (Zn), % 0
5.8 to 11.2
Residuals, % 0
0 to 0.4