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ACI-ASTM CB30 Steel vs. C85700 Brass

ACI-ASTM CB30 steel belongs to the iron alloys classification, while C85700 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB30 steel and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 500
310
Tensile Strength: Yield (Proof), MPa 230
110

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Maximum Temperature: Mechanical, °C 940
120
Melting Completion (Liquidus), °C 1430
940
Melting Onset (Solidus), °C 1380
910
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 21
84
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
22
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
25

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.3
2.8
Embodied Energy, MJ/kg 33
47
Embodied Water, L/kg 130
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
59
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 18
11
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 5.6
27
Thermal Shock Resistance, points 17
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 1.2
58 to 64
Iron (Fe), % 72.9 to 82
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.050
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
32 to 40
Residuals, % 0
0 to 1.3