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EN 1.4020 Stainless Steel vs. C71640 Copper-nickel

EN 1.4020 stainless steel belongs to the iron alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
52
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
490 to 630
Tensile Strength: Yield (Proof), MPa 430 to 950
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Maximum Temperature: Mechanical, °C 890
260
Melting Completion (Liquidus), °C 1390
1180
Melting Onset (Solidus), °C 1350
1120
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
40
Density, g/cm3 7.6
8.9
Embodied Carbon, kg CO2/kg material 2.5
5.0
Embodied Energy, MJ/kg 37
73
Embodied Water, L/kg 150
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
130 to 750
Stiffness to Weight: Axial, points 14
8.7
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 28 to 41
15 to 20
Strength to Weight: Bending, points 25 to 32
16 to 18
Thermal Shock Resistance, points 16 to 23
16 to 21

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 16.5 to 19
0
Copper (Cu), % 0
61.7 to 67.8
Iron (Fe), % 62.8 to 71.8
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 11 to 14
1.5 to 2.5
Nickel (Ni), % 0.5 to 2.5
29 to 32
Nitrogen (N), % 0.2 to 0.45
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5