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EN 1.4938 Stainless Steel vs. AWS ENiCrFe-2

EN 1.4938 stainless steel belongs to the iron alloys classification, while AWS ENiCrFe-2 belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 stainless steel and the bottom bar is AWS ENiCrFe-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 17
28
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
790

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
65
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.3
11
Embodied Energy, MJ/kg 47
160
Embodied Water, L/kg 110
260

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31 to 37
26
Strength to Weight: Bending, points 26 to 29
22
Thermal Shock Resistance, points 30 to 35
24

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.1
Chromium (Cr), % 11 to 12.5
13 to 17
Cobalt (Co), % 0
0 to 0.12
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 80.5 to 84.8
0 to 12
Manganese (Mn), % 0.4 to 0.9
1.0 to 3.5
Molybdenum (Mo), % 1.5 to 2.0
0.5 to 2.5
Nickel (Ni), % 2.0 to 3.0
62 to 85
Niobium (Nb), % 0
0.5 to 4.0
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0.25 to 0.4
0
Residuals, % 0
0 to 0.5