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S17400 Stainless Steel vs. N07750 Nickel

S17400 stainless steel belongs to the iron alloys classification, while N07750 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 30 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 S17400 stainless steel and the bottom bar is N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
25
Fatigue Strength, MPa 380 to 670
520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 570 to 830
770
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
1200
Tensile Strength: Yield (Proof), MPa 580 to 1250
820

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Mechanical, °C 850
960
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
60
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.7
10
Embodied Energy, MJ/kg 39
150
Embodied Water, L/kg 130
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
270
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
1770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 32 to 49
40
Strength to Weight: Bending, points 27 to 35
30
Thermal Diffusivity, mm2/s 4.5
3.3
Thermal Shock Resistance, points 30 to 46
36

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 15 to 17
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 3.0 to 5.0
0 to 0.5
Iron (Fe), % 70.4 to 78.9
5.0 to 9.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 3.0 to 5.0
70 to 77.7
Niobium (Nb), % 0.15 to 0.45
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
2.3 to 2.8