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AWS ERNiCu-7 vs. EN 1.4537 Stainless Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while EN 1.4537 stainless steel belongs to the iron alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
210
Elongation at Break, % 34
42
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
80
Tensile Strength: Ultimate (UTS), MPa 550
700

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1280
1440
Melting Onset (Solidus), °C 1240
1390
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 50
34
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 8.5
6.1
Embodied Energy, MJ/kg 120
84
Embodied Water, L/kg 250
220

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 5.3
3.7
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 18.3 to 36.5
1.0 to 2.0
Iron (Fe), % 0 to 2.5
36.3 to 46.1
Manganese (Mn), % 0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0
4.7 to 5.7
Nickel (Ni), % 62 to 69
24 to 27
Nitrogen (N), % 0
0.17 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.3
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 1.5 to 3.0
0
Residuals, % 0 to 0.5
0