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C18200 Copper vs. S17700 Stainless Steel

C18200 copper belongs to the copper alloys classification, while S17700 stainless steel belongs to the iron 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 C18200 copper and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11 to 40
1.0 to 23
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
76
Shear Strength, MPa 210 to 320
740 to 940
Tensile Strength: Ultimate (UTS), MPa 310 to 530
1180 to 1650
Tensile Strength: Yield (Proof), MPa 97 to 450
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
890
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 1070
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
15
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
40
Embodied Water, L/kg 310
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 96
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
460 to 3750
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.6 to 16
42 to 59
Strength to Weight: Bending, points 11 to 16
32 to 40
Thermal Diffusivity, mm2/s 93
4.1
Thermal Shock Resistance, points 11 to 18
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0.6 to 1.2
16 to 18
Copper (Cu), % 98.6 to 99.4
0
Iron (Fe), % 0 to 0.1
70.5 to 76.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
6.5 to 7.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030