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CR014A Copper vs. S43940 Stainless Steel

CR014A copper belongs to the copper alloys classification, while S43940 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 CR014A copper and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
21
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 230
490
Tensile Strength: Yield (Proof), MPa 140
280

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
890
Melting Completion (Liquidus), °C 1090
1440
Melting Onset (Solidus), °C 1040
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 380
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 32
12
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 42
38
Embodied Water, L/kg 340
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
86
Resilience: Unit (Modulus of Resilience), kJ/m3 83
200
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.1
18
Strength to Weight: Bending, points 9.3
18
Thermal Diffusivity, mm2/s 110
6.8
Thermal Shock Resistance, points 8.1
18

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 18.5
Copper (Cu), % 99.913 to 99.969
0
Iron (Fe), % 0
78.2 to 82.1
Manganese (Mn), % 0
0 to 1.0
Niobium (Nb), % 0
0.3 to 0.6
Phosphorus (P), % 0.0010 to 0.0070
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0.030 to 0.050
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.1 to 0.6