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S21800 Stainless Steel vs. C19025 Copper

S21800 stainless steel belongs to the iron alloys classification, while C19025 copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is C19025 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 40
8.0 to 17
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
43
Shear Strength, MPa 510
300 to 360
Tensile Strength: Ultimate (UTS), MPa 740
480 to 620

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Maximum Temperature: Mechanical, °C 900
200
Melting Completion (Liquidus), °C 1360
1080
Melting Onset (Solidus), °C 1310
1020
Specific Heat Capacity, J/kg-K 500
380
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
2.8
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 150
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 26
18
Strength to Weight: Axial, points 27
15 to 19
Strength to Weight: Bending, points 24
15 to 18
Thermal Shock Resistance, points 17
17 to 22

Alloy Composition

Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
97.1 to 98.5
Iron (Fe), % 59.1 to 65.4
0
Manganese (Mn), % 7.0 to 9.0
0
Nickel (Ni), % 8.0 to 9.0
0.8 to 1.2
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0.030 to 0.070
Silicon (Si), % 3.5 to 4.5
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.7 to 1.1
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.3