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ACI-ASTM CF20 Steel vs. C23400 Brass

ACI-ASTM CF20 steel belongs to the iron alloys classification, while C23400 brass belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF20 steel and the bottom bar is C23400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 530
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 300
190
Maximum Temperature: Mechanical, °C 970
160
Melting Completion (Liquidus), °C 1420
970
Melting Onset (Solidus), °C 1410
930
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 17
19

Otherwise Unclassified Properties

Base Metal Price, % relative 16
27
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 44
43
Embodied Water, L/kg 150
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19
12 to 21
Strength to Weight: Bending, points 19
13 to 19
Thermal Diffusivity, mm2/s 4.3
36
Thermal Shock Resistance, points 11
12 to 22

Alloy Composition

Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
81 to 84
Iron (Fe), % 64.2 to 74
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
15.7 to 19
Residuals, % 0
0 to 0.2