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AWS ERNiCrMo-2 vs. S31727 Stainless Steel

AWS ERNiCrMo-2 belongs to the nickel alloys classification, while S31727 stainless steel belongs to the iron alloys. They have 58% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-2 and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 750
630

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 55
24
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 9.2
4.7
Embodied Energy, MJ/kg 120
64
Embodied Water, L/kg 270
180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 22
20
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 20.5 to 23
17.5 to 19
Cobalt (Co), % 0.5 to 2.5
0
Copper (Cu), % 0 to 0.5
2.8 to 4.0
Iron (Fe), % 17 to 20
53.7 to 61.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
3.8 to 4.5
Nickel (Ni), % 40.3 to 53.8
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.2 to 1.0
0
Residuals, % 0 to 0.5
0