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EN 1.4401 Stainless Steel vs. AWS ENi-1

EN 1.4401 stainless steel belongs to the iron alloys classification, while AWS ENi-1 belongs to the nickel alloys. 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 ENi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 14 to 40
22
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
69
Tensile Strength: Ultimate (UTS), MPa 600 to 900
470

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1400
1310
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
73
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
19

Otherwise Unclassified Properties

Base Metal Price, % relative 19
60
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 3.8
11
Embodied Energy, MJ/kg 52
150
Embodied Water, L/kg 150
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21 to 32
15
Strength to Weight: Bending, points 20 to 26
15
Thermal Diffusivity, mm2/s 4.0
19
Thermal Shock Resistance, points 13 to 20
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.0
Carbon (C), % 0 to 0.070
0 to 0.1
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.8 to 71.5
0 to 0.75
Manganese (Mn), % 0 to 2.0
0 to 0.75
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10 to 13
92 to 99
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.3
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
1.0 to 4.0
Residuals, % 0
0 to 0.5