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SAE-AISI P21 Steel vs. C33200 Brass

SAE-AISI P21 steel belongs to the iron alloys classification, while C33200 brass belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P21 steel and the bottom bar is C33200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 1130
320 to 520

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Melting Completion (Liquidus), °C 1450
930
Melting Onset (Solidus), °C 1410
900
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 41
120
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
28

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
24
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.3
2.6
Embodied Energy, MJ/kg 32
44
Embodied Water, L/kg 62
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 40
11 to 17
Strength to Weight: Bending, points 31
13 to 17
Thermal Diffusivity, mm2/s 11
37
Thermal Shock Resistance, points 37
11 to 17

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
65 to 68
Iron (Fe), % 92.1 to 94.2
0 to 0.070
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0.35 to 0.72
0
Nickel (Ni), % 3.9 to 4.3
0
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
29 to 33.5
Residuals, % 0
0 to 0.4