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ACI-ASTM CB30 Steel vs. C34500 Brass

ACI-ASTM CB30 steel belongs to the iron alloys classification, while C34500 brass belongs to the copper 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 ACI-ASTM CB30 steel and the bottom bar is C34500 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
340 to 430
Tensile Strength: Yield (Proof), MPa 230
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Maximum Temperature: Mechanical, °C 940
120
Melting Completion (Liquidus), °C 1430
910
Melting Onset (Solidus), °C 1380
890
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
26
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
29

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.3
2.6
Embodied Energy, MJ/kg 33
45
Embodied Water, L/kg 130
320

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
69 to 160
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 18
12 to 15
Strength to Weight: Bending, points 18
13 to 16
Thermal Diffusivity, mm2/s 5.6
37
Thermal Shock Resistance, points 17
11 to 14

Alloy Composition

Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 1.2
62 to 65
Iron (Fe), % 72.9 to 82
0 to 0.15
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
32 to 36.5
Residuals, % 0
0 to 0.4