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SAE-AISI A3 Steel vs. C68800 Brass

SAE-AISI A3 steel belongs to the iron alloys classification, while C68800 brass belongs to the copper alloys. There are 23 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 A3 steel and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 700 to 2150
570 to 890

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Melting Completion (Liquidus), °C 1450
960
Melting Onset (Solidus), °C 1410
950
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 37
40
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
18
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
20

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
26
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 67
48
Embodied Water, L/kg 78
350

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25 to 77
19 to 30
Strength to Weight: Bending, points 23 to 48
19 to 25
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 23 to 70
19 to 30

Alloy Composition

Aluminum (Al), % 0
3.0 to 3.8
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 4.8 to 5.5
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 0 to 0.25
70.8 to 75.5
Iron (Fe), % 88.7 to 92
0 to 0.2
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.4 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.8 to 1.4
0
Zinc (Zn), % 0
21.3 to 24.1
Residuals, % 0
0 to 0.5