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EN 1.4537 Stainless Steel vs. AWS ERNiCu-7

EN 1.4537 stainless steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel 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 EN 1.4537 stainless steel and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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