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SAE-AISI P20 Steel vs. C99750 Brass

SAE-AISI P20 steel belongs to the iron alloys classification, while C99750 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P20 steel and the bottom bar is C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
48
Tensile Strength: Ultimate (UTS), MPa 540 to 1050
450 to 520

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Melting Completion (Liquidus), °C 1460
840
Melting Onset (Solidus), °C 1420
820
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
23
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.6
3.1
Embodied Energy, MJ/kg 21
51
Embodied Water, L/kg 52
310

Common Calculations

Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 19 to 37
15 to 18
Strength to Weight: Bending, points 19 to 29
16 to 18
Thermal Shock Resistance, points 18 to 35
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Carbon (C), % 0.28 to 0.4
0
Chromium (Cr), % 0.4 to 2.0
0
Copper (Cu), % 0 to 0.25
55 to 61
Iron (Fe), % 95.2 to 98.5
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Manganese (Mn), % 0.35 to 0.71
17 to 23
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0
0 to 5.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.8
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
17 to 23
Residuals, % 0
0 to 0.3