MakeItFrom.com
Menu (ESC)

C21000 Brass vs. ACI-ASTM CB7Cu-2 Steel

C21000 brass belongs to the copper alloys classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. There are 27 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 C21000 brass and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 2.9 to 50
5.7 to 11
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
75
Tensile Strength: Ultimate (UTS), MPa 240 to 450
960 to 1350
Tensile Strength: Yield (Proof), MPa 69 to 440
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 200
280
Melting Completion (Liquidus), °C 1070
1430
Melting Onset (Solidus), °C 1050
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 230
17
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 57
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 42
38
Embodied Water, L/kg 310
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
1510 to 3600
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.4 to 14
34 to 48
Strength to Weight: Bending, points 9.6 to 15
28 to 35
Thermal Diffusivity, mm2/s 69
4.6
Thermal Shock Resistance, points 8.1 to 15
32 to 45

Alloy Composition

Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 94 to 96
2.5 to 3.2
Iron (Fe), % 0 to 0.050
73.6 to 79
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 0.7
Nickel (Ni), % 0
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 3.7 to 6.0
0
Residuals, % 0 to 0.2
0