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C12000 Copper vs. S44635 Stainless Steel

C12000 copper belongs to the copper alloys classification, while S44635 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C12000 copper and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 2.8 to 50
23
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 43
81
Shear Strength, MPa 160 to 240
450
Tensile Strength: Ultimate (UTS), MPa 230 to 410
710
Tensile Strength: Yield (Proof), MPa 77 to 400
580

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 98
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
22
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
4.4
Embodied Energy, MJ/kg 41
62
Embodied Water, L/kg 310
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 91
150
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 690
810
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.2 to 13
25
Strength to Weight: Bending, points 9.4 to 14
23
Thermal Diffusivity, mm2/s 110
4.4
Thermal Shock Resistance, points 8.2 to 15
23

Alloy Composition

Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
24.5 to 26
Copper (Cu), % 99.9 to 99.996
0
Iron (Fe), % 0
61.5 to 68.5
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0.0040 to 0.012
0 to 0.040
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8