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S20910 Stainless Steel vs. C14700 Copper

S20910 stainless steel belongs to the iron alloys classification, while C14700 copper belongs to the copper alloys. There are 27 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 C14700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
9.1 to 35
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
43
Shear Strength, MPa 500 to 570
160 to 190
Tensile Strength: Ultimate (UTS), MPa 780 to 940
240 to 320
Tensile Strength: Yield (Proof), MPa 430 to 810
85 to 250

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
1070
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 13
370
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
30
Density, g/cm3 7.8
8.9
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
25 to 65
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
31 to 280
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 33
7.3 to 10
Strength to Weight: Bending, points 24 to 27
9.5 to 12
Thermal Diffusivity, mm2/s 3.6
110
Thermal Shock Resistance, points 17 to 21
8.4 to 12

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
99.395 to 99.798
Iron (Fe), % 52.1 to 62.1
0
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
0.0020 to 0.0050
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0.2 to 0.5
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 0.1