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C19025 Copper vs. S31266 Stainless Steel

C19025 copper belongs to the copper alloys classification, while S31266 stainless steel belongs to the iron alloys. There are 26 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 C19025 copper and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 8.0 to 17
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
81
Shear Strength, MPa 300 to 360
590
Tensile Strength: Ultimate (UTS), MPa 480 to 620
860

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1080
1470
Melting Onset (Solidus), °C 1020
1420
Specific Heat Capacity, J/kg-K 380
460
Thermal Conductivity, W/m-K 160
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 40
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
37
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 2.8
6.5
Embodied Energy, MJ/kg 44
89
Embodied Water, L/kg 320
220

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 15 to 19
29
Strength to Weight: Bending, points 15 to 18
24
Thermal Diffusivity, mm2/s 47
3.1
Thermal Shock Resistance, points 17 to 22
18

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 97.1 to 98.5
1.0 to 2.5
Iron (Fe), % 0
34.1 to 46
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 0.8 to 1.2
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0.030 to 0.070
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0.7 to 1.1
0
Tungsten (W), % 0
1.5 to 2.5
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.3
0