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C68800 Brass vs. SAE-AISI S2 Steel

C68800 brass belongs to the copper alloys classification, while SAE-AISI S2 steel belongs to the iron 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 C68800 brass and the bottom bar is SAE-AISI S2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
72
Tensile Strength: Ultimate (UTS), MPa 570 to 890
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Melting Completion (Liquidus), °C 960
1450
Melting Onset (Solidus), °C 950
1410
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 40
44
Thermal Expansion, µm/m-K 19
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 20
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 26
2.6
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.1
Embodied Energy, MJ/kg 48
30
Embodied Water, L/kg 350
49

Common Calculations

Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 19 to 30
24 to 69
Strength to Weight: Bending, points 19 to 25
22 to 44
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 19 to 30
23 to 68

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
0
Carbon (C), % 0
0.4 to 0.55
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
0 to 0.25
Iron (Fe), % 0 to 0.2
96 to 98.1
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.3 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.9 to 1.2
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.5
Zinc (Zn), % 21.3 to 24.1
0
Residuals, % 0 to 0.5
0