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AWS ERNiCrMo-3 vs. S32550 Stainless Steel

AWS ERNiCrMo-3 belongs to the nickel alloys classification, while S32550 stainless steel belongs to the iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-3 and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
21
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 870
860

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
20
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
3.8
Embodied Energy, MJ/kg 190
53
Embodied Water, L/kg 290
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
31
Strength to Weight: Bending, points 24
26
Thermal Diffusivity, mm2/s 2.8
4.4
Thermal Shock Resistance, points 25
23

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.010
0 to 0.040
Chromium (Cr), % 20 to 23
24 to 27
Copper (Cu), % 0 to 0.5
1.5 to 2.5
Iron (Fe), % 0 to 5.0
57.2 to 67
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 8.0 to 10
2.9 to 3.9
Nickel (Ni), % 58 to 68.9
4.5 to 6.5
Niobium (Nb), % 3.2 to 4.2
0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0
Residuals, % 0 to 0.5
0