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C81400 Copper vs. EN 1.4421 Stainless Steel

C81400 copper belongs to the copper alloys classification, while EN 1.4421 stainless steel belongs to the iron alloys. There are 28 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 C81400 copper and the bottom bar is EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
11 to 17
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 370
880 to 1100
Tensile Strength: Yield (Proof), MPa 250
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
870
Melting Completion (Liquidus), °C 1090
1440
Melting Onset (Solidus), °C 1070
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 260
16
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 61
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 33
12
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 45
36
Embodied Water, L/kg 310
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 260
960 to 2270
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11
31 to 39
Strength to Weight: Bending, points 13
26 to 30
Thermal Diffusivity, mm2/s 75
4.4
Thermal Shock Resistance, points 13
31 to 39

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0.6 to 1.0
15.5 to 17.5
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
74.4 to 80.5
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 0
4.0 to 5.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Residuals, % 0 to 0.5
0