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C18900 Copper vs. EN 1.4542 Stainless Steel

C18900 copper belongs to the copper alloys classification, while EN 1.4542 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C18900 copper and the bottom bar is EN 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 14 to 48
5.7 to 20
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
76
Shear Strength, MPa 190 to 300
550 to 860
Tensile Strength: Ultimate (UTS), MPa 260 to 500
880 to 1470
Tensile Strength: Yield (Proof), MPa 67 to 390
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
860
Melting Completion (Liquidus), °C 1080
1430
Melting Onset (Solidus), °C 1020
1380
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 30
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
39
Embodied Water, L/kg 310
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65 to 95
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 20 to 660
880 to 4360
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.2 to 16
31 to 52
Strength to Weight: Bending, points 10 to 16
26 to 37
Thermal Diffusivity, mm2/s 38
4.3
Thermal Shock Resistance, points 9.3 to 18
29 to 49

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 97.7 to 99.15
3.0 to 5.0
Iron (Fe), % 0
69.6 to 79
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0.1 to 0.3
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0 to 0.45
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0.6 to 0.9
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0