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ACI-ASTM CD3MN Steel vs. C18700 Copper

ACI-ASTM CD3MN steel belongs to the iron alloys classification, while C18700 copper 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 CD3MN steel and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 29
9.0 to 9.6
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 79
43
Tensile Strength: Ultimate (UTS), MPa 710
290 to 330
Tensile Strength: Yield (Proof), MPa 460
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1060
200
Melting Completion (Liquidus), °C 1450
1080
Melting Onset (Solidus), °C 1400
950
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
380
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
98
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
99

Otherwise Unclassified Properties

Base Metal Price, % relative 18
30
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.6
2.6
Embodied Energy, MJ/kg 50
41
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 530
240 to 280
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25
9.0 to 10
Strength to Weight: Bending, points 23
11 to 12
Thermal Diffusivity, mm2/s 4.3
110
Thermal Shock Resistance, points 20
10 to 12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 21 to 23.5
0
Copper (Cu), % 0 to 1.0
98 to 99.2
Iron (Fe), % 62.6 to 71.9
0
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Residuals, % 0
0 to 0.5