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S21603 Stainless Steel vs. C18100 Copper

S21603 stainless steel belongs to the iron alloys classification, while C18100 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 45
8.3
Poisson's Ratio 0.28
0.34
Rockwell B Hardness 88
80
Shear Modulus, GPa 79
47
Shear Strength, MPa 490
300
Tensile Strength: Ultimate (UTS), MPa 690
510
Tensile Strength: Yield (Proof), MPa 390
460

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 990
200
Melting Completion (Liquidus), °C 1420
1080
Melting Onset (Solidus), °C 1380
1020
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 17
31
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 50
43
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
40
Resilience: Unit (Modulus of Resilience), kJ/m3 380
900
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25
16
Strength to Weight: Bending, points 22
16
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 22
0.4 to 1.2
Copper (Cu), % 0
98.7 to 99.49
Iron (Fe), % 57.6 to 67.8
0
Magnesium (Mg), % 0
0.030 to 0.060
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
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.5