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C87900 Brass vs. ACI-ASTM CB30 Steel

C87900 brass belongs to the copper alloys classification, while ACI-ASTM CB30 steel belongs to the iron alloys. There are 26 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 C87900 brass and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 480
500
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Maximum Temperature: Mechanical, °C 130
940
Melting Completion (Liquidus), °C 930
1430
Melting Onset (Solidus), °C 900
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 20
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 17
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.3
Embodied Energy, MJ/kg 46
33
Embodied Water, L/kg 320
130

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 270
140
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 37
5.6
Thermal Shock Resistance, points 16
17

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 63 to 69.2
0 to 1.2
Iron (Fe), % 0 to 0.4
72.9 to 82
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Nickel (Ni), % 0 to 0.5
0 to 2.0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0.8 to 1.2
0 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.040
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 30 to 36
0