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S20910 Stainless Steel vs. C70250 Copper

S20910 stainless steel belongs to the iron alloys classification, while C70250 copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is C70250 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
44
Tensile Strength: Ultimate (UTS), MPa 780 to 940
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 1080
210
Melting Completion (Liquidus), °C 1420
1100
Melting Onset (Solidus), °C 1380
1080
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 13
170
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.8
2.9
Embodied Energy, MJ/kg 68
45
Embodied Water, L/kg 180
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 33
16 to 23
Strength to Weight: Bending, points 24 to 27
16 to 21
Thermal Diffusivity, mm2/s 3.6
49
Thermal Shock Resistance, points 17 to 21
18 to 26

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
92.7 to 97.5
Iron (Fe), % 52.1 to 62.1
0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 4.0 to 6.0
0 to 0.1
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
2.2 to 4.2
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0.25 to 1.2
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5