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S44635 Stainless Steel vs. C15900 Copper

S44635 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 (6, in this case) are not shown.

For each property being compared, the top bar is S44635 stainless steel and the bottom bar is C15900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 23
6.5
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 81
43
Shear Strength, MPa 450
420
Tensile Strength: Ultimate (UTS), MPa 710
720
Tensile Strength: Yield (Proof), MPa 580
240

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1460
1080
Melting Onset (Solidus), °C 1420
1030
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 16
280
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
48
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
49

Otherwise Unclassified Properties

Base Metal Price, % relative 22
30
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 62
45
Embodied Water, L/kg 170
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
37
Resilience: Unit (Modulus of Resilience), kJ/m3 810
260
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 4.4
80
Thermal Shock Resistance, points 23
26

Alloy Composition

Aluminum (Al), % 0
0.76 to 0.84
Carbon (C), % 0 to 0.025
0.27 to 0.33
Chromium (Cr), % 24.5 to 26
0
Copper (Cu), % 0
97.5 to 97.9
Iron (Fe), % 61.5 to 68.5
0 to 0.040
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 3.5 to 4.5
0
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0
Oxygen (O), % 0
0.4 to 0.54
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 0.8
0.66 to 0.74