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S31730 Stainless Steel vs. C16200 Copper

S31730 stainless steel belongs to the iron alloys classification, while C16200 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is C16200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
2.0 to 56
Fatigue Strength, MPa 170
100 to 210
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Shear Strength, MPa 370
190 to 390
Tensile Strength: Ultimate (UTS), MPa 540
240 to 550
Tensile Strength: Yield (Proof), MPa 200
48 to 470

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 990
370
Melting Completion (Liquidus), °C 1430
1080
Melting Onset (Solidus), °C 1390
1030
Specific Heat Capacity, J/kg-K 470
380
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 4.6
2.6
Embodied Energy, MJ/kg 63
41
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
10 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 99
10 to 970
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 19
7.4 to 17
Strength to Weight: Bending, points 18
9.6 to 17
Thermal Shock Resistance, points 12
8.7 to 20

Alloy Composition

Cadmium (Cd), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 4.0 to 5.0
98.6 to 99.3
Iron (Fe), % 52.4 to 61
0 to 0.2
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 15 to 16.5
0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0