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EN 1.4109 Stainless Steel vs. C18900 Copper

EN 1.4109 stainless steel belongs to the iron alloys classification, while C18900 copper belongs to the copper 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 EN 1.4109 stainless steel and the bottom bar is C18900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 19
14 to 48
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
43
Shear Strength, MPa 480
190 to 300
Tensile Strength: Ultimate (UTS), MPa 770
260 to 500
Tensile Strength: Yield (Proof), MPa 420
67 to 390

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 820
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1400
1020
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 30
130
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
30
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
30

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
31
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
2.7
Embodied Energy, MJ/kg 30
42
Embodied Water, L/kg 110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
65 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 460
20 to 660
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28
8.2 to 16
Strength to Weight: Bending, points 24
10 to 16
Thermal Diffusivity, mm2/s 8.1
38
Thermal Shock Resistance, points 28
9.3 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 0
97.7 to 99.15
Iron (Fe), % 80.7 to 85
0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0.1 to 0.3
Molybdenum (Mo), % 0.4 to 0.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 0.7
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0.6 to 0.9
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5