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C18100 Copper vs. AISI 440B Stainless Steel

C18100 copper belongs to the copper alloys classification, while AISI 440B stainless steel belongs to the iron alloys. There are 28 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 C18100 copper and the bottom bar is AISI 440B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 8.3
3.0 to 18
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 47
77
Shear Strength, MPa 300
460 to 1110
Tensile Strength: Ultimate (UTS), MPa 510
740 to 1930
Tensile Strength: Yield (Proof), MPa 460
430 to 1860

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
870
Melting Completion (Liquidus), °C 1080
1480
Melting Onset (Solidus), °C 1020
1370
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
23
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.0
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.2
Embodied Energy, MJ/kg 43
31
Embodied Water, L/kg 310
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
57 to 110
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 16
27 to 70
Strength to Weight: Bending, points 16
24 to 45
Thermal Diffusivity, mm2/s 94
6.1
Thermal Shock Resistance, points 18
27 to 70

Alloy Composition

Carbon (C), % 0
0.75 to 1.0
Chromium (Cr), % 0.4 to 1.2
16 to 18
Copper (Cu), % 98.7 to 99.49
0
Iron (Fe), % 0
78.2 to 83.3
Magnesium (Mg), % 0.030 to 0.060
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0 to 0.5
0