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S21460 Stainless Steel vs. C18600 Copper

S21460 stainless steel belongs to the iron alloys classification, while C18600 copper belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21460 stainless steel and the bottom bar is C18600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 46
8.0 to 11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Shear Strength, MPa 580
310 to 340
Tensile Strength: Ultimate (UTS), MPa 830
520 to 580
Tensile Strength: Yield (Proof), MPa 430
500 to 520

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 920
200
Melting Completion (Liquidus), °C 1380
1090
Melting Onset (Solidus), °C 1330
1070
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
31
Density, g/cm3 7.6
8.9
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 43
46
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
44 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1060 to 1180
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 30
16 to 18
Strength to Weight: Bending, points 26
16 to 17
Thermal Shock Resistance, points 17
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 17 to 19
0.1 to 1.0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0
96.5 to 99.55
Iron (Fe), % 57.3 to 63.7
0.25 to 0.8
Manganese (Mn), % 14 to 16
0
Nickel (Ni), % 5.0 to 6.0
0 to 0.25
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.050 to 0.5
Zirconium (Zr), % 0
0.050 to 0.4
Residuals, % 0
0 to 0.5