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N07750 Nickel vs. S31100 Stainless Steel

N07750 nickel belongs to the nickel alloys classification, while S31100 stainless steel belongs to the iron alloys. They have a modest 30% 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 (5, in this case) are not shown.

For each property being compared, the top bar is N07750 nickel and the bottom bar is S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
4.5
Fatigue Strength, MPa 520
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 770
580
Tensile Strength: Ultimate (UTS), MPa 1200
1000
Tensile Strength: Yield (Proof), MPa 820
710

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 60
16
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 10
3.1
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 260
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
40
Resilience: Unit (Modulus of Resilience), kJ/m3 1770
1240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
36
Strength to Weight: Bending, points 30
29
Thermal Diffusivity, mm2/s 3.3
4.2
Thermal Shock Resistance, points 36
28

Alloy Composition

Aluminum (Al), % 0.4 to 1.0
0
Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 14 to 17
25 to 27
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 5.0 to 9.0
63.6 to 69
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 70 to 77.7
6.0 to 7.0
Niobium (Nb), % 0.7 to 1.2
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 2.3 to 2.8
0 to 0.25