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S31254 Stainless Steel vs. CC140C Copper

S31254 stainless steel belongs to the iron alloys classification, while CC140C copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S31254 stainless steel and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110
Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 80
44
Tensile Strength: Ultimate (UTS), MPa 720
340
Tensile Strength: Yield (Proof), MPa 330
230

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1090
200
Melting Completion (Liquidus), °C 1460
1100
Melting Onset (Solidus), °C 1420
1040
Specific Heat Capacity, J/kg-K 460
390
Thermal Conductivity, W/m-K 14
310
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
77
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
78

Otherwise Unclassified Properties

Base Metal Price, % relative 28
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 5.5
2.6
Embodied Energy, MJ/kg 74
41
Embodied Water, L/kg 190
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
34
Resilience: Unit (Modulus of Resilience), kJ/m3 270
220
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 25
10
Strength to Weight: Bending, points 22
12
Thermal Diffusivity, mm2/s 3.8
89
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19.5 to 20.5
0.4 to 1.2
Copper (Cu), % 0.5 to 1.0
98.8 to 99.6
Iron (Fe), % 51.4 to 56.3
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.22
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.010
0