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S31100 Stainless Steel vs. C16200 Copper

S31100 stainless steel belongs to the iron alloys classification, while C16200 copper belongs to the copper alloys. There are 30 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 S31100 stainless steel and the bottom bar is C16200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 4.5
2.0 to 56
Fatigue Strength, MPa 330
100 to 210
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 79
43
Shear Strength, MPa 580
190 to 390
Tensile Strength: Ultimate (UTS), MPa 1000
240 to 550
Tensile Strength: Yield (Proof), MPa 710
48 to 470

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1100
370
Melting Completion (Liquidus), °C 1420
1080
Melting Onset (Solidus), °C 1380
1030
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
360
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
90
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
90

Otherwise Unclassified Properties

Base Metal Price, % relative 16
30
Density, g/cm3 7.7
9.0
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 44
41
Embodied Water, L/kg 170
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
10 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
10 to 970
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 36
7.4 to 17
Strength to Weight: Bending, points 29
9.6 to 17
Thermal Diffusivity, mm2/s 4.2
100
Thermal Shock Resistance, points 28
8.7 to 20

Alloy Composition

Cadmium (Cd), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 25 to 27
0
Copper (Cu), % 0
98.6 to 99.3
Iron (Fe), % 63.6 to 69
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.0 to 7.0
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.25
0