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ACI-ASTM CH20 Steel vs. C87400 Brass

ACI-ASTM CH20 steel belongs to the iron alloys classification, while C87400 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH20 steel and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 38
21
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 610
390
Tensile Strength: Yield (Proof), MPa 350
160

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1410
920
Melting Onset (Solidus), °C 1430
820
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 14
28
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 20
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.7
2.7
Embodied Energy, MJ/kg 53
44
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
65
Resilience: Unit (Modulus of Resilience), kJ/m3 300
120
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22
13
Strength to Weight: Bending, points 21
14
Thermal Diffusivity, mm2/s 3.7
8.3
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
79 to 85.5
Iron (Fe), % 54.7 to 66
0
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
2.5 to 4.0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
12 to 16
Residuals, % 0
0 to 0.8