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AISI 303 Stainless Steel vs. C14700 Copper

AISI 303 stainless steel belongs to the iron alloys classification, while C14700 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 303 stainless steel and the bottom bar is C14700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40 to 51
9.1 to 35
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Shear Strength, MPa 430 to 470
160 to 190
Tensile Strength: Ultimate (UTS), MPa 600 to 690
240 to 320
Tensile Strength: Yield (Proof), MPa 230 to 420
85 to 250

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
1070
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
370
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
95
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
96

Otherwise Unclassified Properties

Base Metal Price, % relative 15
30
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 42
41
Embodied Water, L/kg 140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
25 to 65
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
31 to 280
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21 to 25
7.3 to 10
Strength to Weight: Bending, points 20 to 22
9.5 to 12
Thermal Diffusivity, mm2/s 4.4
110
Thermal Shock Resistance, points 13 to 15
8.4 to 12

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
99.395 to 99.798
Iron (Fe), % 67.3 to 74.9
0
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10
0
Phosphorus (P), % 0 to 0.2
0.0020 to 0.0050
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0.2 to 0.5
Residuals, % 0
0 to 0.1