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ACI-ASTM CB7Cu-1 Steel vs. C42500 Brass

ACI-ASTM CB7Cu-1 steel belongs to the iron alloys classification, while C42500 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB7Cu-1 steel and the bottom bar is C42500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 5.7 to 11
2.0 to 49
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
42
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
310 to 630
Tensile Strength: Yield (Proof), MPa 760 to 1180
120 to 590

Thermal Properties

Latent Heat of Fusion, J/g 280
200
Melting Completion (Liquidus), °C 1430
1030
Melting Onset (Solidus), °C 1500
1010
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 17
120
Thermal Expansion, µm/m-K 11
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
29

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 38
46
Embodied Water, L/kg 130
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
12 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
64 to 1570
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 34 to 48
9.9 to 20
Strength to Weight: Bending, points 28 to 35
12 to 19
Thermal Diffusivity, mm2/s 4.6
36
Thermal Shock Resistance, points 32 to 45
11 to 22

Alloy Composition

Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 15.5 to 17.7
0
Copper (Cu), % 2.5 to 3.2
87 to 90
Iron (Fe), % 72.3 to 78.4
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.7
0
Nickel (Ni), % 3.6 to 4.6
0
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.35
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.5 to 3.0
Zinc (Zn), % 0
6.1 to 11.5
Residuals, % 0
0 to 0.5