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S31727 Stainless Steel vs. Grade CX2M Nickel

S31727 stainless steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 40
45
Fatigue Strength, MPa 240
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
84
Tensile Strength: Ultimate (UTS), MPa 630
550
Tensile Strength: Yield (Proof), MPa 270
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 1010
990
Melting Completion (Liquidus), °C 1440
1500
Melting Onset (Solidus), °C 1390
1450
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
65
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 4.7
12
Embodied Energy, MJ/kg 64
160
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
17
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 17.5 to 19
22 to 24
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
0 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.8 to 4.5
15 to 16.5
Nickel (Ni), % 14.5 to 16.5
56.4 to 63
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020