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EN 1.4621 Stainless Steel vs. C15900 Copper

EN 1.4621 stainless steel belongs to the iron alloys classification, while C15900 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4621 stainless steel and the bottom bar is C15900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 25
6.5
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
43
Shear Strength, MPa 320
420
Tensile Strength: Ultimate (UTS), MPa 500
720
Tensile Strength: Yield (Proof), MPa 270
240

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 970
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1390
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 21
280
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
48
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
49

Otherwise Unclassified Properties

Base Metal Price, % relative 14
30
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
37
Resilience: Unit (Modulus of Resilience), kJ/m3 190
260
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 5.7
80
Thermal Shock Resistance, points 17
26

Alloy Composition

Aluminum (Al), % 0
0.76 to 0.84
Carbon (C), % 0 to 0.030
0.27 to 0.33
Chromium (Cr), % 20 to 21.5
0
Copper (Cu), % 0.1 to 1.0
97.5 to 97.9
Iron (Fe), % 74.4 to 79.7
0 to 0.040
Manganese (Mn), % 0 to 1.0
0
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0
0.4 to 0.54
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.66 to 0.74