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EN 1.4988 Stainless Steel vs. AWS ERNiCrMo-2

EN 1.4988 stainless steel belongs to the iron alloys classification, while AWS ERNiCrMo-2 belongs to the nickel alloys. They have 51% of their average alloy composition in common. There are 23 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 1.4988 stainless steel and the bottom bar is AWS ERNiCrMo-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 640
750

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 23
55
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 6.0
9.2
Embodied Energy, MJ/kg 89
120
Embodied Water, L/kg 150
270

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 4.0
2.9
Thermal Shock Resistance, points 14
20

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.050 to 0.15
Chromium (Cr), % 15.5 to 17.5
20.5 to 23
Cobalt (Co), % 0
0.5 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 62.1 to 69.5
17 to 20
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.1 to 1.5
8.0 to 10
Nickel (Ni), % 12.5 to 14.5
40.3 to 53.8
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
0.2 to 1.0
Vanadium (V), % 0.6 to 0.85
0
Residuals, % 0
0 to 0.5