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S17700 Stainless Steel vs. C15900 Copper

S17700 stainless steel belongs to the iron alloys classification, while C15900 copper belongs to the copper 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 S17700 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, % 1.0 to 23
6.5
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
43
Shear Strength, MPa 740 to 940
420
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
720
Tensile Strength: Yield (Proof), MPa 430 to 1210
240

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 890
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1400
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
280
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
48
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
49

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
37
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
260
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 42 to 59
23
Strength to Weight: Bending, points 32 to 40
20
Thermal Diffusivity, mm2/s 4.1
80
Thermal Shock Resistance, points 39 to 54
26

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0.76 to 0.84
Carbon (C), % 0 to 0.090
0.27 to 0.33
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
97.5 to 97.9
Iron (Fe), % 70.5 to 76.8
0 to 0.040
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.5 to 7.8
0
Oxygen (O), % 0
0.4 to 0.54
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.66 to 0.74