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AISI 304 Stainless Steel vs. C82700 Copper

AISI 304 stainless steel belongs to the iron alloys classification, while C82700 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 AISI 304 stainless steel and the bottom bar is C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 8.0 to 43
1.8
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
46
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
1200
Tensile Strength: Yield (Proof), MPa 230 to 860
1020

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Maximum Temperature: Mechanical, °C 710
300
Melting Completion (Liquidus), °C 1450
950
Melting Onset (Solidus), °C 1400
860
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
20
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
21

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.0
12
Embodied Energy, MJ/kg 43
180
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
21
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
4260
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21 to 42
38
Strength to Weight: Bending, points 20 to 32
29
Thermal Diffusivity, mm2/s 4.2
39
Thermal Shock Resistance, points 12 to 25
41

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0 to 0.090
Copper (Cu), % 0
94.6 to 96.7
Iron (Fe), % 66.5 to 74
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10.5
1.0 to 1.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5