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AWS ENiCrMo-4 vs. EN 1.4986 Stainless Steel

AWS ENiCrMo-4 belongs to the nickel alloys classification, while EN 1.4986 stainless steel belongs to the iron alloys. They have a modest 40% 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 (14, in this case) are not shown.

For each property being compared, the top bar is AWS ENiCrMo-4 and the bottom bar is EN 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 28
18
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 790
750

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1590
1450
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 70
25
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 13
4.8
Embodied Energy, MJ/kg 170
67
Embodied Water, L/kg 280
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
26
Strength to Weight: Bending, points 21
23
Thermal Shock Resistance, points 22
16

Alloy Composition

Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0 to 0.020
0.040 to 0.1
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
59.4 to 66.6
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 15 to 17
1.6 to 2.0
Nickel (Ni), % 49.9 to 63.5
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.2
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0 to 0.35
0
Residuals, % 0 to 0.5
0