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AISI 309 Stainless Steel vs. C19020 Copper

AISI 309 stainless steel belongs to the iron alloys classification, while C19020 copper belongs to the copper alloys. There are 26 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 AISI 309 stainless steel and the bottom bar is C19020 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34 to 47
2.3 to 5.7
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
44
Shear Strength, MPa 420 to 470
260 to 340
Tensile Strength: Ultimate (UTS), MPa 600 to 710
440 to 590

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 980
200
Melting Completion (Liquidus), °C 1450
1090
Melting Onset (Solidus), °C 1400
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
190
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
50
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
50

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 51
44
Embodied Water, L/kg 170
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21 to 25
14 to 18
Strength to Weight: Bending, points 20 to 23
14 to 18
Thermal Diffusivity, mm2/s 4.3
55
Thermal Shock Resistance, points 14 to 16
16 to 21

Alloy Composition

Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
95.7 to 99.19
Iron (Fe), % 58 to 66
0
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 15
0.5 to 3.0
Phosphorus (P), % 0 to 0.045
0.010 to 0.2
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.3 to 0.9
Residuals, % 0
0 to 0.2