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AISI 303 Stainless Steel vs. C18100 Copper

AISI 303 stainless steel belongs to the iron alloys classification, while C18100 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 303 stainless steel and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40 to 51
8.3
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
47
Shear Strength, MPa 430 to 470
300
Tensile Strength: Ultimate (UTS), MPa 600 to 690
510
Tensile Strength: Yield (Proof), MPa 230 to 420
460

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 930
200
Melting Completion (Liquidus), °C 1450
1080
Melting Onset (Solidus), °C 1400
1020
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
320
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
80
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
81

Otherwise Unclassified Properties

Base Metal Price, % relative 15
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 42
43
Embodied Water, L/kg 140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
40
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
900
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21 to 25
16
Strength to Weight: Bending, points 20 to 22
16
Thermal Diffusivity, mm2/s 4.4
94
Thermal Shock Resistance, points 13 to 15
18

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0.4 to 1.2
Copper (Cu), % 0
98.7 to 99.49
Iron (Fe), % 67.3 to 74.9
0
Magnesium (Mg), % 0
0.030 to 0.060
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10
0
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.5