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C18700 Copper vs. ASTM A372 Grade C Steel

C18700 copper belongs to the copper alloys classification, while ASTM A372 grade C steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is ASTM A372 grade C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.0 to 9.6
17
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Shear Strength, MPa 170 to 190
440
Tensile Strength: Ultimate (UTS), MPa 290 to 330
710
Tensile Strength: Yield (Proof), MPa 230 to 250
430

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 950
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
51
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 30
1.8
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 41
19
Embodied Water, L/kg 310
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
100
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
500
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
25
Strength to Weight: Bending, points 11 to 12
23
Thermal Diffusivity, mm2/s 110
14
Thermal Shock Resistance, points 10 to 12
22

Alloy Composition

Carbon (C), % 0
0 to 0.48
Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
97.5 to 99.85
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 1.7
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Residuals, % 0 to 0.5
0