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AWS ENiCrMo-4 vs. EN 1.4122 Stainless Steel

AWS ENiCrMo-4 belongs to the nickel alloys classification, while EN 1.4122 stainless steel belongs to the iron 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 AWS ENiCrMo-4 and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 28
14
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 790
790 to 850

Thermal Properties

Latent Heat of Fusion, J/g 320
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
9.5
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 13
2.4
Embodied Energy, MJ/kg 170
33
Embodied Water, L/kg 280
120

Common Calculations

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

Alloy Composition

Carbon (C), % 0 to 0.020
0.33 to 0.45
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
77.2 to 83.4
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 15 to 17
0.8 to 1.3
Nickel (Ni), % 49.9 to 63.5
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0 to 0.35
0
Residuals, % 0 to 0.5
0