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S32950 Stainless Steel vs. C18600 Copper

S32950 stainless steel belongs to the iron alloys classification, while C18600 copper belongs to the copper alloys. There are 29 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 S32950 stainless steel and the bottom bar is C18600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 17
8.0 to 11
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 80
44
Shear Strength, MPa 480
310 to 340
Tensile Strength: Ultimate (UTS), MPa 780
520 to 580
Tensile Strength: Yield (Proof), MPa 550
500 to 520

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1430
1090
Melting Onset (Solidus), °C 1390
1070
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
280
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
70
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
71

Otherwise Unclassified Properties

Base Metal Price, % relative 17
31
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.4
2.9
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
44 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 730
1060 to 1180
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28
16 to 18
Strength to Weight: Bending, points 24
16 to 17
Thermal Diffusivity, mm2/s 4.3
81
Thermal Shock Resistance, points 21
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 26 to 29
0.1 to 1.0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0
96.5 to 99.55
Iron (Fe), % 60.3 to 69.4
0.25 to 0.8
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 1.0 to 2.5
0
Nickel (Ni), % 3.5 to 5.2
0 to 0.25
Nitrogen (N), % 0.15 to 0.35
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0.050 to 0.5
Zirconium (Zr), % 0
0.050 to 0.4
Residuals, % 0
0 to 0.5