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AWS ERNiCrMo-4 vs. S31727 Stainless Steel

AWS ERNiCrMo-4 belongs to the nickel alloys classification, while S31727 stainless steel belongs to the iron alloys. They have 41% of their average alloy composition in common. There are 20 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-4 and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 28
40
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
78
Tensile Strength: Ultimate (UTS), MPa 790
630

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1590
1440
Melting Onset (Solidus), °C 1530
1390
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
24
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 13
4.7
Embodied Energy, MJ/kg 170
64
Embodied Water, L/kg 280
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
22
Strength to Weight: Bending, points 21
20
Thermal Shock Resistance, points 22
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 14.5 to 16.5
17.5 to 19
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
2.8 to 4.0
Iron (Fe), % 4.0 to 7.0
53.7 to 61.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 15 to 17
3.8 to 4.5
Nickel (Ni), % 50 to 63.5
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 0.080
0 to 1.0
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