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CR022A Copper vs. S20431 Stainless Steel

CR022A copper belongs to the copper alloys classification, while S20431 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is CR022A copper and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
46
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
76
Tensile Strength: Ultimate (UTS), MPa 230
710
Tensile Strength: Yield (Proof), MPa 140
350

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
890
Melting Completion (Liquidus), °C 1090
1400
Melting Onset (Solidus), °C 1040
1360
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 380
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.5
Embodied Energy, MJ/kg 41
36
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
270
Resilience: Unit (Modulus of Resilience), kJ/m3 83
310
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.1
25
Strength to Weight: Bending, points 9.3
23
Thermal Diffusivity, mm2/s 110
4.0
Thermal Shock Resistance, points 8.1
15

Alloy Composition

Antimony (Sb), % 0 to 0.00040
0
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Cadmium (Cd), % 0 to 0.00010
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 99.99 to 99.999
1.5 to 3.5
Iron (Fe), % 0 to 0.0010
66.1 to 74.4
Lead (Pb), % 0 to 0.00050
0
Manganese (Mn), % 0 to 0.00050
5.0 to 7.0
Nickel (Ni), % 0 to 0.0010
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0.0010 to 0.0060
0 to 0.045
Selenium (Se), % 0 to 0.00020
0
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0 to 0.030
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0 to 0.00020
0
Zinc (Zn), % 0 to 0.00010
0