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C18100 Copper vs. EN 1.4938 Stainless Steel

C18100 copper belongs to the copper alloys classification, while EN 1.4938 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C18100 copper and the bottom bar is EN 1.4938 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 8.3
16 to 17
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 47
76
Shear Strength, MPa 300
540 to 630
Tensile Strength: Ultimate (UTS), MPa 510
870 to 1030
Tensile Strength: Yield (Proof), MPa 460
640 to 870

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Maximum Temperature: Mechanical, °C 200
750
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 1020
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 320
30
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 81
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 43
47
Embodied Water, L/kg 310
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 900
1050 to 1920
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 16
31 to 37
Strength to Weight: Bending, points 16
26 to 29
Thermal Diffusivity, mm2/s 94
8.1
Thermal Shock Resistance, points 18
30 to 35

Alloy Composition

Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0.4 to 1.2
11 to 12.5
Copper (Cu), % 98.7 to 99.49
0
Iron (Fe), % 0
80.5 to 84.8
Magnesium (Mg), % 0.030 to 0.060
0
Manganese (Mn), % 0
0.4 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0
0.020 to 0.040
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0.25 to 0.4
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0 to 0.5
0