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Grade CW2M Nickel vs. S31266 Stainless Steel

Grade CW2M nickel belongs to the nickel alloys classification, while S31266 stainless steel belongs to the iron alloys. They have 47% of their average alloy composition in common. 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 grade CW2M nickel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 23
40
Fatigue Strength, MPa 190
400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 83
81
Tensile Strength: Ultimate (UTS), MPa 560
860
Tensile Strength: Yield (Proof), MPa 310
470

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1520
1470
Melting Onset (Solidus), °C 1460
1420
Specific Heat Capacity, J/kg-K 430
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
37
Density, g/cm3 8.8
8.2
Embodied Carbon, kg CO2/kg material 12
6.5
Embodied Energy, MJ/kg 170
89
Embodied Water, L/kg 290
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
290
Resilience: Unit (Modulus of Resilience), kJ/m3 220
540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 16
18

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 15 to 17.5
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 0 to 2.0
34.1 to 46
Manganese (Mn), % 0 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 15 to 17.5
5.2 to 6.2
Nickel (Ni), % 60.1 to 70
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0 to 1.0
1.5 to 2.5