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EN 1.8818 Steel vs. AWS ERNiCu-7

EN 1.8818 steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.8818 steel and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 27
34
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
61
Tensile Strength: Ultimate (UTS), MPa 440
550

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1460
1280
Melting Onset (Solidus), °C 1420
1240
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 48
20
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
50
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.6
8.5
Embodied Energy, MJ/kg 21
120
Embodied Water, L/kg 49
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 16
17
Thermal Diffusivity, mm2/s 13
5.3
Thermal Shock Resistance, points 13
19

Alloy Composition


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Aluminum (Al), % 0.015 to 0.034
0 to 1.3
Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 0 to 0.35
0
Copper (Cu), % 0 to 0.6
18.3 to 36.5
Iron (Fe), % 95.9 to 99.985
0 to 2.5
Manganese (Mn), % 0 to 1.6
0 to 4.0
Molybdenum (Mo), % 0 to 0.13
0
Nickel (Ni), % 0 to 0.35
62 to 69
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.017
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.55
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0 to 0.060
1.5 to 3.0
Vanadium (V), % 0 to 0.1
0
Residuals, % 0
0 to 0.5