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Grade CW12MW Nickel vs. AISI 308L Stainless Steel

Grade CW12MW nickel belongs to the nickel alloys classification, while AISI 308L stainless steel belongs to the iron alloys. They have a modest 33% 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 (9, in this case) are not shown.

For each property being compared, the top bar is grade CW12MW nickel and the bottom bar is AISI 308L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 4.6
34
Fatigue Strength, MPa 130
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 85
78
Tensile Strength: Ultimate (UTS), MPa 560
580
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 960
1010
Melting Completion (Liquidus), °C 1610
1420
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
16
Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 13
3.2
Embodied Energy, MJ/kg 180
45
Embodied Water, L/kg 280
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
160
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Shock Resistance, points 16
13

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.080
Chromium (Cr), % 15.5 to 17.5
19.5 to 22
Iron (Fe), % 4.5 to 7.5
63.8 to 70.5
Manganese (Mn), % 0 to 1.0
1.0 to 2.5
Molybdenum (Mo), % 16 to 18
0
Nickel (Ni), % 49.2 to 60.1
9.0 to 11
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.25 to 0.6
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