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Grade CW12MW Nickel vs. AISI 317 Stainless Steel

Grade CW12MW nickel belongs to the nickel alloys classification, while AISI 317 stainless steel belongs to the iron alloys. They have a modest 40% 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 grade CW12MW nickel and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 4.6
35 to 55
Fatigue Strength, MPa 130
250 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 85
79
Tensile Strength: Ultimate (UTS), MPa 560
580 to 710
Tensile Strength: Yield (Proof), MPa 310
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 960
590
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 70
21
Density, g/cm3 9.1
7.9
Embodied Carbon, kg CO2/kg material 13
4.3
Embodied Energy, MJ/kg 180
59
Embodied Water, L/kg 280
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 220
150 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 17
20 to 25
Strength to Weight: Bending, points 17
20 to 22
Thermal Shock Resistance, points 16
12 to 15

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.080
Chromium (Cr), % 15.5 to 17.5
18 to 20
Iron (Fe), % 4.5 to 7.5
58 to 68
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 16 to 18
3.0 to 4.0
Nickel (Ni), % 49.2 to 60.1
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
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