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S20910 Stainless Steel vs. Grade CW6MC Nickel

S20910 stainless steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 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 S20910 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, % 14 to 39
28
Fatigue Strength, MPa 310 to 460
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 780 to 940
540
Tensile Strength: Yield (Proof), MPa 430 to 810
310

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1080
980
Melting Completion (Liquidus), °C 1420
1480
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 22
80
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 4.8
14
Embodied Energy, MJ/kg 68
200
Embodied Water, L/kg 180
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28 to 33
18
Strength to Weight: Bending, points 24 to 27
17
Thermal Diffusivity, mm2/s 3.6
2.8
Thermal Shock Resistance, points 17 to 21
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 20.5 to 23.5
20 to 23
Iron (Fe), % 52.1 to 62.1
0 to 5.0
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 3.0
8.0 to 10
Nickel (Ni), % 11.5 to 13.5
55.4 to 68.9
Niobium (Nb), % 0.1 to 0.3
3.2 to 4.5
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.1 to 0.3
0