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EN 1.4401 Stainless Steel vs. AWS ERNiCrMo-3

EN 1.4401 stainless steel belongs to the iron alloys classification, while AWS ERNiCrMo-3 belongs to the nickel alloys. They have a modest 34% 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 1.4401 stainless steel and the bottom bar is AWS ERNiCrMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 40
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 600 to 900
870

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
80
Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 3.8
14
Embodied Energy, MJ/kg 52
190
Embodied Water, L/kg 150
290

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21 to 32
28
Strength to Weight: Bending, points 20 to 26
24
Thermal Diffusivity, mm2/s 4.0
2.8
Thermal Shock Resistance, points 13 to 20
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.070
0 to 0.010
Chromium (Cr), % 16.5 to 18.5
20 to 23
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 62.8 to 71.5
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 2.0 to 2.5
8.0 to 10
Nickel (Ni), % 10 to 13
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0 to 0.4
Residuals, % 0
0 to 0.5