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SAE-AISI P4 Steel vs. C47940 Brass

SAE-AISI P4 steel belongs to the iron alloys classification, while C47940 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P4 steel and the bottom bar is C47940 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 74
40
Tensile Strength: Ultimate (UTS), MPa 390 to 1980
380 to 520

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Melting Completion (Liquidus), °C 1460
850
Melting Onset (Solidus), °C 1420
800
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 41
110
Thermal Expansion, µm/m-K 12
20

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
25
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.8
2.8
Embodied Energy, MJ/kg 23
47
Embodied Water, L/kg 68
330

Common Calculations

Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 14 to 70
13 to 17
Strength to Weight: Bending, points 15 to 45
14 to 17
Thermal Diffusivity, mm2/s 11
36
Thermal Shock Resistance, points 13 to 64
13 to 17

Alloy Composition

Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 4.0 to 5.3
0
Copper (Cu), % 0 to 0.25
63 to 66
Iron (Fe), % 92.3 to 95.3
0.1 to 1.0
Lead (Pb), % 0
1.0 to 2.0
Manganese (Mn), % 0.2 to 0.6
0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0
0.1 to 0.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.1 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.2 to 2.0
Zinc (Zn), % 0
28.1 to 34.6
Residuals, % 0
0 to 0.4