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S20910 Stainless Steel vs. C19400 Copper

S20910 stainless steel belongs to the iron alloys classification, while C19400 copper belongs to the copper alloys. There are 27 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 S20910 stainless steel and the bottom bar is C19400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
2.3 to 37
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
44
Shear Strength, MPa 500 to 570
210 to 300
Tensile Strength: Ultimate (UTS), MPa 780 to 940
310 to 630
Tensile Strength: Yield (Proof), MPa 430 to 810
98 to 520

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1080
200
Melting Completion (Liquidus), °C 1420
1090
Melting Onset (Solidus), °C 1380
1080
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 13
260
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
30
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.8
2.6
Embodied Energy, MJ/kg 68
40
Embodied Water, L/kg 180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
5.5 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
41 to 1140
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 33
9.7 to 20
Strength to Weight: Bending, points 24 to 27
11 to 18
Thermal Diffusivity, mm2/s 3.6
75
Thermal Shock Resistance, points 17 to 21
11 to 22

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
96.8 to 97.8
Iron (Fe), % 52.1 to 62.1
2.1 to 2.6
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0.015 to 0.15
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0.050 to 0.2
Residuals, % 0
0 to 0.2