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C16200 Copper vs. S31655 Stainless Steel

C16200 copper belongs to the copper alloys classification, while S31655 stainless steel belongs to the iron 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 C16200 copper and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 2.0 to 56
39
Fatigue Strength, MPa 100 to 210
300
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
78
Shear Strength, MPa 190 to 390
490
Tensile Strength: Ultimate (UTS), MPa 240 to 550
710
Tensile Strength: Yield (Proof), MPa 48 to 470
350

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 370
1010
Melting Completion (Liquidus), °C 1080
1430
Melting Onset (Solidus), °C 1030
1380
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 360
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 90
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 99
230
Resilience: Unit (Modulus of Resilience), kJ/m3 10 to 970
310
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.4 to 17
25
Strength to Weight: Bending, points 9.6 to 17
23
Thermal Diffusivity, mm2/s 100
4.0
Thermal Shock Resistance, points 8.7 to 20
16

Alloy Composition

Cadmium (Cd), % 0.7 to 1.2
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 98.6 to 99.3
0 to 1.0
Iron (Fe), % 0 to 0.2
63.2 to 71.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 1.5
Nickel (Ni), % 0
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015