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C19000 Copper vs. S20432 Stainless Steel

C19000 copper belongs to the copper alloys classification, while S20432 stainless steel belongs to the iron alloys. There are 30 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 C19000 copper and the bottom bar is S20432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 2.5 to 50
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 45 to 94
81
Shear Modulus, GPa 43
76
Shear Strength, MPa 170 to 390
400
Tensile Strength: Ultimate (UTS), MPa 260 to 760
580
Tensile Strength: Yield (Proof), MPa 140 to 630
230

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
900
Melting Completion (Liquidus), °C 1080
1410
Melting Onset (Solidus), °C 1040
1370
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 250
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 61
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 42
38
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 89 to 1730
140
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.2 to 24
21
Strength to Weight: Bending, points 10 to 21
20
Thermal Diffusivity, mm2/s 73
4.0
Thermal Shock Resistance, points 9.3 to 27
13

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 96.9 to 99
2.0 to 3.0
Iron (Fe), % 0 to 0.1
66.7 to 74
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
3.0 to 5.0
Nickel (Ni), % 0.9 to 1.3
4.0 to 6.0
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0.15 to 0.35
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.8
0
Residuals, % 0 to 0.5
0