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C34500 Brass vs. ACI-ASTM CA40 Steel

C34500 brass belongs to the copper alloys classification, while ACI-ASTM CA40 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C34500 brass and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 12 to 28
10
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 340 to 430
910
Tensile Strength: Yield (Proof), MPa 120 to 180
860

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
750
Melting Completion (Liquidus), °C 910
1440
Melting Onset (Solidus), °C 890
1500
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 120
25
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 29
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 24
7.5
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 45
28
Embodied Water, L/kg 320
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
89
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
1910
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 15
33
Strength to Weight: Bending, points 13 to 16
27
Thermal Diffusivity, mm2/s 37
6.7
Thermal Shock Resistance, points 11 to 14
33

Alloy Composition

Carbon (C), % 0
0.2 to 0.4
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 62 to 65
0
Iron (Fe), % 0 to 0.15
81.5 to 88.3
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 32 to 36.5
0
Residuals, % 0 to 0.4
0