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S31727 Stainless Steel vs. C15900 Copper

S31727 stainless steel belongs to the iron alloys classification, while C15900 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is C15900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
6.5
Poisson's Ratio 0.28
0.34
Rockwell B Hardness 83
95
Shear Modulus, GPa 78
43
Shear Strength, MPa 430
420
Tensile Strength: Ultimate (UTS), MPa 630
720
Tensile Strength: Yield (Proof), MPa 270
240

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 1010
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1390
1030
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 4.7
2.8
Embodied Energy, MJ/kg 64
45
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
37
Resilience: Unit (Modulus of Resilience), kJ/m3 190
260
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 22
23
Strength to Weight: Bending, points 20
20
Thermal Shock Resistance, points 14
26

Alloy Composition

Aluminum (Al), % 0
0.76 to 0.84
Carbon (C), % 0 to 0.030
0.27 to 0.33
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
97.5 to 97.9
Iron (Fe), % 53.7 to 61.3
0 to 0.040
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0
Oxygen (O), % 0
0.4 to 0.54
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.66 to 0.74