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ACI-ASTM CH20 Steel vs. CC765S Brass

ACI-ASTM CH20 steel belongs to the iron alloys classification, while CC765S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH20 steel and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 38
21
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 78
42
Tensile Strength: Ultimate (UTS), MPa 610
540
Tensile Strength: Yield (Proof), MPa 350
220

Thermal Properties

Latent Heat of Fusion, J/g 310
180
Maximum Temperature: Mechanical, °C 1100
140
Melting Completion (Liquidus), °C 1410
860
Melting Onset (Solidus), °C 1430
820
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 14
91
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
34

Otherwise Unclassified Properties

Base Metal Price, % relative 20
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.7
3.0
Embodied Energy, MJ/kg 53
51
Embodied Water, L/kg 180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
90
Resilience: Unit (Modulus of Resilience), kJ/m3 300
220
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 3.7
28
Thermal Shock Resistance, points 15
17

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
51 to 65
Iron (Fe), % 54.7 to 66
0.5 to 2.0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 1.5
0.3 to 3.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
19.8 to 47.7