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AWS ERNiCrMo-4 vs. EN 1.4421 Stainless Steel

AWS ERNiCrMo-4 belongs to the nickel alloys classification, while EN 1.4421 stainless steel belongs to the iron alloys. They have a modest 27% 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 AWS ERNiCrMo-4 and the bottom bar is EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 28
11 to 17
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 790
880 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1590
1440
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 70
12
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 13
2.6
Embodied Energy, MJ/kg 170
36
Embodied Water, L/kg 280
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
31 to 39
Strength to Weight: Bending, points 21
26 to 30
Thermal Shock Resistance, points 22
31 to 39

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.060
Chromium (Cr), % 14.5 to 16.5
15.5 to 17.5
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 4.0 to 7.0
74.4 to 80.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 15 to 17
0 to 0.7
Nickel (Ni), % 50 to 63.5
4.0 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.080
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0 to 0.35
0
Residuals, % 0 to 0.5
0