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S21800 Stainless Steel vs. C81500 Copper

S21800 stainless steel belongs to the iron alloys classification, while C81500 copper belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is C81500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
110
Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 40
17
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
44
Tensile Strength: Ultimate (UTS), MPa 740
350
Tensile Strength: Yield (Proof), MPa 390
280

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Maximum Temperature: Mechanical, °C 900
200
Melting Completion (Liquidus), °C 1360
1090
Melting Onset (Solidus), °C 1310
1080
Specific Heat Capacity, J/kg-K 500
390
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 15
31
Density, g/cm3 7.5
8.9
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 45
41
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
56
Resilience: Unit (Modulus of Resilience), kJ/m3 390
330
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 26
18
Strength to Weight: Axial, points 27
11
Strength to Weight: Bending, points 24
12
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16 to 18
0.4 to 1.5
Copper (Cu), % 0
97.4 to 99.6
Iron (Fe), % 59.1 to 65.4
0 to 0.1
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 7.0 to 9.0
0
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 3.5 to 4.5
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5