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S21603 Stainless Steel vs. C55181 Copper

S21603 stainless steel belongs to the iron alloys classification, while C55181 copper belongs to the copper alloys. There are 20 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 S21603 stainless steel and the bottom bar is C55181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 690
200

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 990
200
Melting Completion (Liquidus), °C 1420
790
Melting Onset (Solidus), °C 1380
710
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 17
28
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 3.6
2.4
Embodied Energy, MJ/kg 50
38
Embodied Water, L/kg 160
290

Common Calculations

Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25
6.5
Strength to Weight: Bending, points 22
8.9
Thermal Shock Resistance, points 15
8.2

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 22
0
Copper (Cu), % 0
92.4 to 93
Iron (Fe), % 57.6 to 67.8
0
Manganese (Mn), % 7.5 to 9.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
7.0 to 7.5
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.15