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C27000 Brass vs. ACI-ASTM CG12 Steel

C27000 brass belongs to the copper alloys classification, while ACI-ASTM CG12 steel belongs to the iron alloys. There are 24 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 C27000 brass and the bottom bar is ACI-ASTM CG12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 370 to 650
550

Thermal Properties

Latent Heat of Fusion, J/g 180
300
Maximum Temperature: Mechanical, °C 130
1040
Melting Completion (Liquidus), °C 930
1410
Melting Onset (Solidus), °C 900
1370
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 20
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 30
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
18
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 45
48
Embodied Water, L/kg 320
160

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 22
20
Strength to Weight: Bending, points 14 to 21
19
Thermal Diffusivity, mm2/s 37
4.0
Thermal Shock Resistance, points 12 to 22
12

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 63 to 68.5
0
Iron (Fe), % 0 to 0.1
60.3 to 70
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
10 to 13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 31 to 37
0
Residuals, % 0 to 0.3
0