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S20910 Stainless Steel vs. C14181 Copper

S20910 stainless steel belongs to the iron alloys classification, while C14181 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is C14181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
43
Tensile Strength: Ultimate (UTS), MPa 780 to 940
210
Tensile Strength: Yield (Proof), MPa 430 to 810
130

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1080
200
Melting Completion (Liquidus), °C 1420
1080
Melting Onset (Solidus), °C 1380
1080
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 13
380
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 4.8
2.6
Embodied Energy, MJ/kg 68
41
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
28
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
69
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 33
6.5
Strength to Weight: Bending, points 24 to 27
8.8
Thermal Diffusivity, mm2/s 3.6
110
Thermal Shock Resistance, points 17 to 21
7.4

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.060
0 to 0.0050
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
99.9 to 100
Iron (Fe), % 52.1 to 62.1
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.0020