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S17400 Stainless Steel vs. Nickel 22

S17400 stainless steel belongs to the iron alloys classification, while nickel 22 belongs to the nickel alloys. They have a modest 24% 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 (6, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is nickel 22.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 11 to 21
49
Fatigue Strength, MPa 380 to 670
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
84
Shear Strength, MPa 570 to 830
560
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
790
Tensile Strength: Yield (Proof), MPa 580 to 1250
360

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 850
990
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 17
10
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
70
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 2.7
12
Embodied Energy, MJ/kg 39
170
Embodied Water, L/kg 130
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
320
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 32 to 49
25
Strength to Weight: Bending, points 27 to 35
21
Thermal Diffusivity, mm2/s 4.5
2.7
Thermal Shock Resistance, points 30 to 46
24

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.015
Chromium (Cr), % 15 to 17
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
2.0 to 6.0
Manganese (Mn), % 0 to 1.0
0 to 0.015
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 3.0 to 5.0
50.8 to 63
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35