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EN 1.4938 Stainless Steel vs. AWS ENi-1

EN 1.4938 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 (8, 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 ENi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 16 to 17
22
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 76
69
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
470

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 30
73
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
19
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
19

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.3
11
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 110
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 31 to 37
15
Strength to Weight: Bending, points 26 to 29
15
Thermal Diffusivity, mm2/s 8.1
19
Thermal Shock Resistance, points 30 to 35
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.0
Carbon (C), % 0.080 to 0.15
0 to 0.1
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.5 to 84.8
0 to 0.75
Manganese (Mn), % 0.4 to 0.9
0 to 0.75
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
92 to 99
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 1.3
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
1.0 to 4.0
Vanadium (V), % 0.25 to 0.4
0
Residuals, % 0
0 to 0.5