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S20910 Stainless Steel vs. C16500 Copper

S20910 stainless steel belongs to the iron alloys classification, while C16500 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 C16500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 14 to 39
1.5 to 53
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
43
Shear Strength, MPa 500 to 570
200 to 310
Tensile Strength: Ultimate (UTS), MPa 780 to 940
280 to 530
Tensile Strength: Yield (Proof), MPa 430 to 810
97 to 520

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1080
340
Melting Completion (Liquidus), °C 1420
1070
Melting Onset (Solidus), °C 1380
1010
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 13
250
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.8
2.6
Embodied Energy, MJ/kg 68
42
Embodied Water, L/kg 180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
7.8 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
41 to 1160
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 33
8.6 to 17
Strength to Weight: Bending, points 24 to 27
11 to 16
Thermal Diffusivity, mm2/s 3.6
74
Thermal Shock Resistance, points 17 to 21
9.8 to 19

Alloy Composition

Cadmium (Cd), % 0
0.6 to 1.0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
97.8 to 98.9
Iron (Fe), % 52.1 to 62.1
0 to 0.020
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
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.5 to 0.7
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 0.5