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EN 1.4618 Stainless Steel vs. C18400 Copper

EN 1.4618 stainless steel belongs to the iron alloys classification, while C18400 copper belongs to the copper 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 EN 1.4618 stainless steel and the bottom bar is C18400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 51
13 to 50
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Shear Strength, MPa 480 to 500
190 to 310
Tensile Strength: Ultimate (UTS), MPa 680 to 700
270 to 490
Tensile Strength: Yield (Proof), MPa 250 to 260
110 to 480

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 900
200
Melting Completion (Liquidus), °C 1400
1080
Melting Onset (Solidus), °C 1360
1070
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
320
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
80
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
81

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 39
41
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
63 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
54 to 980
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 24 to 25
8.5 to 15
Strength to Weight: Bending, points 22 to 23
10 to 16
Thermal Diffusivity, mm2/s 4.0
94
Thermal Shock Resistance, points 15 to 16
9.6 to 17

Alloy Composition

Arsenic (As), % 0
0 to 0.0050
Calcium (Ca), % 0
0 to 0.0050
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16.5 to 18.5
0.4 to 1.2
Copper (Cu), % 1.0 to 2.5
97.2 to 99.6
Iron (Fe), % 62.7 to 72.5
0 to 0.15
Lithium (Li), % 0
0 to 0.050
Manganese (Mn), % 5.5 to 9.5
0
Nickel (Ni), % 4.5 to 5.5
0
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0
0 to 0.7
Residuals, % 0
0 to 0.5