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C81400 Copper vs. S44537 Stainless Steel

C81400 copper belongs to the copper alloys classification, while S44537 stainless steel belongs to the iron 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 C81400 copper and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
21
Poisson's Ratio 0.34
0.27
Rockwell B Hardness 69
80
Shear Modulus, GPa 41
79
Tensile Strength: Ultimate (UTS), MPa 370
510
Tensile Strength: Yield (Proof), MPa 250
360

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
1000
Melting Completion (Liquidus), °C 1090
1480
Melting Onset (Solidus), °C 1070
1430
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
21
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 61
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 33
19
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 45
50
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
95
Resilience: Unit (Modulus of Resilience), kJ/m3 260
320
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11
18
Strength to Weight: Bending, points 13
18
Thermal Diffusivity, mm2/s 75
5.6
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.6 to 1.0
20 to 24
Copper (Cu), % 98.4 to 99.38
0 to 0.5
Iron (Fe), % 0
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0.1 to 0.6
Sulfur (S), % 0
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0
Residuals, % 0 to 0.5
0