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C19800 Copper vs. AISI 418 Stainless Steel

C19800 copper belongs to the copper alloys classification, while AISI 418 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C19800 copper and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 12
17
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Shear Strength, MPa 260 to 330
680
Tensile Strength: Ultimate (UTS), MPa 430 to 550
1100
Tensile Strength: Yield (Proof), MPa 420 to 550
850

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Maximum Temperature: Mechanical, °C 200
770
Melting Completion (Liquidus), °C 1070
1500
Melting Onset (Solidus), °C 1050
1460
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
25
Thermal Expansion, µm/m-K 18
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 62
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 43
41
Embodied Water, L/kg 320
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 52
170
Resilience: Unit (Modulus of Resilience), kJ/m3 770 to 1320
1830
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 14 to 17
38
Strength to Weight: Bending, points 14 to 17
29
Thermal Diffusivity, mm2/s 75
6.7
Thermal Shock Resistance, points 15 to 20
40

Alloy Composition

Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 95.7 to 99.47
0
Iron (Fe), % 0.020 to 0.5
78.5 to 83.6
Magnesium (Mg), % 0.1 to 1.0
0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
Phosphorus (P), % 0.010 to 0.1
0 to 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0.1 to 1.0
0
Tungsten (W), % 0
2.5 to 3.5
Zinc (Zn), % 0.3 to 1.5
0
Residuals, % 0 to 0.2
0