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S31727 Stainless Steel vs. AWS ENi-1

S31727 stainless steel belongs to the iron alloys classification, while AWS ENi-1 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is AWS ENi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 40
22
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
69
Tensile Strength: Ultimate (UTS), MPa 630
470

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1390
1310
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
60
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 4.7
11
Embodied Energy, MJ/kg 64
150
Embodied Water, L/kg 180
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 20
15
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.0
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
0 to 0.25
Iron (Fe), % 53.7 to 61.3
0 to 0.75
Manganese (Mn), % 0 to 1.0
0 to 0.75
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
92 to 99
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
1.0 to 4.0
Residuals, % 0
0 to 0.5