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Grade CW12MW Nickel vs. S32550 Stainless Steel

Grade CW12MW nickel belongs to the nickel alloys classification, while S32550 stainless steel belongs to the iron alloys. They have a modest 32% 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 (10, in this case) are not shown.

For each property being compared, the top bar is grade CW12MW nickel and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 4.6
21
Fatigue Strength, MPa 130
400
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 85
80
Tensile Strength: Ultimate (UTS), MPa 560
860
Tensile Strength: Yield (Proof), MPa 310
620

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
20
Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 13
3.8
Embodied Energy, MJ/kg 180
53
Embodied Water, L/kg 280
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
160
Resilience: Unit (Modulus of Resilience), kJ/m3 220
940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 17
31
Strength to Weight: Bending, points 17
26
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.040
Chromium (Cr), % 15.5 to 17.5
24 to 27
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 4.5 to 7.5
57.2 to 67
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 16 to 18
2.9 to 3.9
Nickel (Ni), % 49.2 to 60.1
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.8 to 5.3
0
Vanadium (V), % 0.2 to 0.4
0