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S17700 Stainless Steel vs. Grade CW6MC Nickel

S17700 stainless steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.0 to 23
28
Fatigue Strength, MPa 290 to 560
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
540
Tensile Strength: Yield (Proof), MPa 430 to 1210
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 890
980
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
80
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.8
14
Embodied Energy, MJ/kg 40
200
Embodied Water, L/kg 150
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
130
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 42 to 59
18
Strength to Weight: Bending, points 32 to 40
17
Thermal Diffusivity, mm2/s 4.1
2.8
Thermal Shock Resistance, points 39 to 54
15

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.060
Chromium (Cr), % 16 to 18
20 to 23
Iron (Fe), % 70.5 to 76.8
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 6.5 to 7.8
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030