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EN 1.4988 Stainless Steel vs. AWS ERNiCrMo-4

EN 1.4988 stainless steel belongs to the iron alloys classification, while AWS ERNiCrMo-4 belongs to the nickel alloys. They have a modest 37% 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 (13, 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-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 640
790

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1450
1590
Melting Onset (Solidus), °C 1400
1530
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 23
70
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 6.0
13
Embodied Energy, MJ/kg 89
170
Embodied Water, L/kg 150
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 14
22

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.020
Chromium (Cr), % 15.5 to 17.5
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 62.1 to 69.5
4.0 to 7.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.1 to 1.5
15 to 17
Nickel (Ni), % 12.5 to 14.5
50 to 63.5
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 0.080
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0.6 to 0.85
0 to 0.35
Residuals, % 0
0 to 0.5