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AWS ERNiCu-7 vs. EN 1.4470 Stainless Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while EN 1.4470 stainless steel belongs to the iron 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 AWS ERNiCu-7 and the bottom bar is EN 1.4470 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 34
23
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 61
80
Tensile Strength: Ultimate (UTS), MPa 550
680

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1280
1450
Melting Onset (Solidus), °C 1240
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
18
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 50
17
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.5
3.6
Embodied Energy, MJ/kg 120
49
Embodied Water, L/kg 250
160

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 5.3
4.8
Thermal Shock Resistance, points 19
18

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 18.3 to 36.5
0
Iron (Fe), % 0 to 2.5
63.7 to 71.9
Manganese (Mn), % 0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 62 to 69
4.5 to 6.5
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 1.5 to 3.0
0
Residuals, % 0 to 0.5
0