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ACI-ASTM CK20 Steel vs. CC750S Brass

ACI-ASTM CK20 steel belongs to the iron alloys classification, while CC750S 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 CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
54
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 37
13
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 530
200
Tensile Strength: Yield (Proof), MPa 260
80

Thermal Properties

Latent Heat of Fusion, J/g 310
170
Maximum Temperature: Mechanical, °C 1100
130
Melting Completion (Liquidus), °C 1400
860
Melting Onset (Solidus), °C 1430
810
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 14
110
Thermal Expansion, µm/m-K 15
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
26

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 62
46
Embodied Water, L/kg 190
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
22
Resilience: Unit (Modulus of Resilience), kJ/m3 170
30
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19
6.8
Strength to Weight: Bending, points 19
9.3
Thermal Diffusivity, mm2/s 3.7
35
Thermal Shock Resistance, points 13
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
62 to 67
Iron (Fe), % 46.7 to 58
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
Manganese (Mn), % 0 to 2.0
0 to 0.2
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 2.0
0 to 0.050
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 0
26.3 to 36