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AISI 309 Stainless Steel vs. C15500 Copper

AISI 309 stainless steel belongs to the iron alloys classification, while C15500 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 309 stainless steel and the bottom bar is C15500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34 to 47
3.0 to 37
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
43
Shear Strength, MPa 420 to 470
190 to 320
Tensile Strength: Ultimate (UTS), MPa 600 to 710
280 to 550
Tensile Strength: Yield (Proof), MPa 260 to 350
130 to 530

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 980
200
Melting Completion (Liquidus), °C 1450
1080
Melting Onset (Solidus), °C 1400
1080
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
350
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
90
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
91

Otherwise Unclassified Properties

Base Metal Price, % relative 19
33
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 51
42
Embodied Water, L/kg 170
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
15 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
72 to 1210
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21 to 25
8.6 to 17
Strength to Weight: Bending, points 20 to 23
11 to 17
Thermal Diffusivity, mm2/s 4.3
100
Thermal Shock Resistance, points 14 to 16
9.8 to 20

Alloy Composition

Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
99.75 to 99.853
Iron (Fe), % 58 to 66
0
Magnesium (Mg), % 0
0.080 to 0.13
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.045
0.040 to 0.080
Silicon (Si), % 0 to 0.75
0
Silver (Ag), % 0
0.027 to 0.1
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.2