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C81400 Copper vs. N08700 Stainless Steel

C81400 copper belongs to the copper alloys classification, while N08700 stainless steel belongs to the iron 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 C81400 copper and the bottom bar is N08700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
32
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 69
81
Shear Modulus, GPa 41
79
Tensile Strength: Ultimate (UTS), MPa 370
620
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1090
1450
Melting Onset (Solidus), °C 1070
1400
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
13
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 61
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 33
32
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 2.8
6.0
Embodied Energy, MJ/kg 45
82
Embodied Water, L/kg 310
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
160
Resilience: Unit (Modulus of Resilience), kJ/m3 260
180
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11
21
Strength to Weight: Bending, points 13
20
Thermal Diffusivity, mm2/s 75
3.5
Thermal Shock Resistance, points 13
14

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0.6 to 1.0
19 to 23
Copper (Cu), % 98.4 to 99.38
0 to 0.5
Iron (Fe), % 0
42 to 52.7
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.3 to 5.0
Nickel (Ni), % 0
24 to 26
Niobium (Nb), % 0
0 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0