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ACI-ASTM CK20 Steel vs. CC766S Brass

ACI-ASTM CK20 steel belongs to the iron alloys classification, while CC766S 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 CK20 steel and the bottom bar is CC766S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
120
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 37
28
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 530
500
Tensile Strength: Yield (Proof), MPa 260
190

Thermal Properties

Latent Heat of Fusion, J/g 310
180
Maximum Temperature: Mechanical, °C 1100
130
Melting Completion (Liquidus), °C 1400
840
Melting Onset (Solidus), °C 1430
800
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 14
89
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
36

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 62
48
Embodied Water, L/kg 190
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 170
180
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.7
28
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 0
0.3 to 1.8
Antimony (Sb), % 0
0 to 0.1
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
58 to 64
Iron (Fe), % 46.7 to 58
0 to 0.5
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0 to 2.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.6
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0
29.5 to 41.7