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EN 1.4421 Stainless Steel vs. C14181 Copper

EN 1.4421 stainless steel belongs to the iron alloys classification, while C14181 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4421 stainless steel and the bottom bar is C14181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 11 to 17
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
210
Tensile Strength: Yield (Proof), MPa 620 to 950
130

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 870
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1400
1080
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
380
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 36
41
Embodied Water, L/kg 130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
28
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
69
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 31 to 39
6.5
Strength to Weight: Bending, points 26 to 30
8.8
Thermal Diffusivity, mm2/s 4.4
110
Thermal Shock Resistance, points 31 to 39
7.4

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.060
0 to 0.0050
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
99.9 to 100
Iron (Fe), % 74.4 to 80.5
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 4.0 to 5.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.0020
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 0.0020