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C37100 Brass vs. ACI-ASTM CA40 Steel

C37100 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 (6, in this case) are not shown.

For each property being compared, the top bar is C37100 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, % 8.0 to 40
10
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 370 to 520
910
Tensile Strength: Yield (Proof), MPa 150 to 390
860

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
750
Melting Completion (Liquidus), °C 900
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 27
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 30
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
7.5
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 45
28
Embodied Water, L/kg 320
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 120
89
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 750
1910
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 13 to 18
33
Strength to Weight: Bending, points 14 to 18
27
Thermal Diffusivity, mm2/s 39
6.7
Thermal Shock Resistance, points 12 to 17
33

Alloy Composition

Carbon (C), % 0
0.2 to 0.4
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 58 to 62
0
Iron (Fe), % 0 to 0.15
81.5 to 88.3
Lead (Pb), % 0.6 to 1.2
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), % 36.3 to 41.4
0
Residuals, % 0 to 0.4
0