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Nickel 22 vs. S17700 Stainless Steel

Nickel 22 belongs to the nickel alloys classification, while S17700 stainless steel belongs to the iron alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 22 and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 49
1.0 to 23
Fatigue Strength, MPa 330
290 to 560
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
76
Shear Strength, MPa 560
740 to 940
Tensile Strength: Ultimate (UTS), MPa 790
1180 to 1650
Tensile Strength: Yield (Proof), MPa 360
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 990
890
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
15
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 70
13
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 12
2.8
Embodied Energy, MJ/kg 170
40
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 300
460 to 3750
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 25
42 to 59
Strength to Weight: Bending, points 21
32 to 40
Thermal Diffusivity, mm2/s 2.7
4.1
Thermal Shock Resistance, points 24
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.015
0 to 0.090
Chromium (Cr), % 20 to 22.5
16 to 18
Cobalt (Co), % 0 to 2.5
0
Iron (Fe), % 2.0 to 6.0
70.5 to 76.8
Manganese (Mn), % 0 to 0.015
0 to 1.0
Molybdenum (Mo), % 12.5 to 14.5
0
Nickel (Ni), % 50.8 to 63
6.5 to 7.8
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.080
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0