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SAE-AISI O7 Steel vs. C27000 Brass

SAE-AISI O7 steel belongs to the iron alloys classification, while C27000 brass belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O7 steel and the bottom bar is C27000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 680 to 2110
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Melting Completion (Liquidus), °C 1480
930
Melting Onset (Solidus), °C 1430
900
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 41
120
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
30

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
24
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.3
2.7
Embodied Energy, MJ/kg 33
45
Embodied Water, L/kg 52
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 24 to 74
13 to 22
Strength to Weight: Bending, points 22 to 46
14 to 21
Thermal Diffusivity, mm2/s 11
37
Thermal Shock Resistance, points 23 to 70
12 to 22

Alloy Composition

Carbon (C), % 1.1 to 1.3
0
Chromium (Cr), % 0.35 to 0.85
0
Copper (Cu), % 0 to 0.25
63 to 68.5
Iron (Fe), % 92.9 to 97.6
0 to 0.1
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.3
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 1.0 to 2.0
0
Vanadium (V), % 0 to 0.4
0
Zinc (Zn), % 0
31 to 37
Residuals, % 0
0 to 0.3