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EN 1.4446 Stainless Steel vs. C18200 Copper

EN 1.4446 stainless steel belongs to the iron alloys classification, while C18200 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4446 stainless steel and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 23
11 to 40
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
44
Tensile Strength: Ultimate (UTS), MPa 490
310 to 530
Tensile Strength: Yield (Proof), MPa 240
97 to 450

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 980
200
Melting Completion (Liquidus), °C 1460
1080
Melting Onset (Solidus), °C 1410
1070
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 14
320
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
80
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
81

Otherwise Unclassified Properties

Base Metal Price, % relative 22
31
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.5
2.6
Embodied Energy, MJ/kg 60
41
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
43 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 140
40 to 860
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 17
9.6 to 16
Strength to Weight: Bending, points 17
11 to 16
Thermal Diffusivity, mm2/s 3.6
93
Thermal Shock Resistance, points 11
11 to 18

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16.5 to 18.5
0.6 to 1.2
Copper (Cu), % 0
98.6 to 99.4
Iron (Fe), % 59.7 to 66.9
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 12.5 to 14.5
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0