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C43000 Brass vs. ACI-ASTM CN7M Steel

C43000 brass belongs to the copper alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C43000 brass and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 3.0 to 55
44
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
77
Tensile Strength: Ultimate (UTS), MPa 320 to 710
480
Tensile Strength: Yield (Proof), MPa 130 to 550
200

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 1030
1410
Melting Onset (Solidus), °C 1000
1450
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 18
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 28
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 29
32
Density, g/cm3 8.6
8.1
Embodied Carbon, kg CO2/kg material 2.8
5.6
Embodied Energy, MJ/kg 46
78
Embodied Water, L/kg 330
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 150
170
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 1350
110
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10 to 23
17
Strength to Weight: Bending, points 12 to 20
17
Thermal Diffusivity, mm2/s 36
5.6
Thermal Shock Resistance, points 11 to 25
12

Alloy Composition

Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 84 to 87
3.0 to 4.0
Iron (Fe), % 0 to 0.050
37.4 to 48.5
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 1.7 to 2.7
0
Zinc (Zn), % 9.7 to 14.3
0
Residuals, % 0 to 0.5
0