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C19800 Copper vs. S31730 Stainless Steel

C19800 copper belongs to the copper alloys classification, while S31730 stainless steel belongs to the iron alloys. There are 25 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 C19800 copper and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 12
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Shear Strength, MPa 260 to 330
370
Tensile Strength: Ultimate (UTS), MPa 430 to 550
540
Tensile Strength: Yield (Proof), MPa 420 to 550
200

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
990
Melting Completion (Liquidus), °C 1070
1430
Melting Onset (Solidus), °C 1050
1390
Specific Heat Capacity, J/kg-K 390
470
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
4.6
Embodied Energy, MJ/kg 43
63
Embodied Water, L/kg 320
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 52
170
Resilience: Unit (Modulus of Resilience), kJ/m3 770 to 1320
99
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 14 to 17
19
Strength to Weight: Bending, points 14 to 17
18
Thermal Shock Resistance, points 15 to 20
12

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 95.7 to 99.47
4.0 to 5.0
Iron (Fe), % 0.020 to 0.5
52.4 to 61
Magnesium (Mg), % 0.1 to 1.0
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0.010 to 0.1
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0.1 to 1.0
0
Zinc (Zn), % 0.3 to 1.5
0
Residuals, % 0 to 0.2
0