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Grade CW2M Nickel vs. EN 1.3940 Stainless Steel

Grade CW2M nickel belongs to the nickel alloys classification, while EN 1.3940 stainless steel belongs to the iron alloys. They have a modest 31% 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 (7, in this case) are not shown.

For each property being compared, the top bar is grade CW2M nickel and the bottom bar is EN 1.3940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 83
77
Tensile Strength: Ultimate (UTS), MPa 560
540
Tensile Strength: Yield (Proof), MPa 310
240

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 960
930
Melting Completion (Liquidus), °C 1520
1420
Melting Onset (Solidus), °C 1460
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
17
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 12
3.3
Embodied Energy, MJ/kg 170
47
Embodied Water, L/kg 290
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150
Resilience: Unit (Modulus of Resilience), kJ/m3 220
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 17
19
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 15 to 17.5
16.5 to 18.5
Iron (Fe), % 0 to 2.0
64.2 to 71.4
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 15 to 17.5
0
Nickel (Ni), % 60.1 to 70
12 to 14
Nitrogen (N), % 0
0.1 to 0.2
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
0