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CR025A Copper vs. S31260 Stainless Steel

CR025A copper belongs to the copper alloys classification, while S31260 stainless steel belongs to the iron alloys. There are 28 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 CR025A copper and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
23
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 43
80
Tensile Strength: Ultimate (UTS), MPa 230
790
Tensile Strength: Yield (Proof), MPa 140
540

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1090
1450
Melting Onset (Solidus), °C 1040
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 370
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 99
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
20
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.9
Embodied Energy, MJ/kg 41
53
Embodied Water, L/kg 320
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
160
Resilience: Unit (Modulus of Resilience), kJ/m3 83
720
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.1
28
Strength to Weight: Bending, points 9.3
24
Thermal Diffusivity, mm2/s 110
4.3
Thermal Shock Resistance, points 8.1
22

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 99.9 to 99.96
0.2 to 0.8
Iron (Fe), % 0
59.6 to 67.6
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0.040 to 0.060
0 to 0.030
Silicon (Si), % 0
0 to 0.75
Silver (Ag), % 0 to 0.015
0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
0.1 to 0.5