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S31727 Stainless Steel vs. C99500 Copper

S31727 stainless steel belongs to the iron alloys classification, while C99500 copper belongs to the copper alloys. There are 24 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 C99500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
45
Tensile Strength: Ultimate (UTS), MPa 630
540
Tensile Strength: Yield (Proof), MPa 270
310

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Maximum Temperature: Mechanical, °C 1010
210
Melting Completion (Liquidus), °C 1440
1090
Melting Onset (Solidus), °C 1390
1040
Specific Heat Capacity, J/kg-K 470
400
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 4.7
3.0
Embodied Energy, MJ/kg 64
47
Embodied Water, L/kg 180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
63
Resilience: Unit (Modulus of Resilience), kJ/m3 190
410
Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
17
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
82.5 to 92
Iron (Fe), % 53.7 to 61.3
3.0 to 5.0
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
3.5 to 5.5
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0.5 to 2.0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0.5 to 2.0
Residuals, % 0
0 to 0.3