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AISI 431 Stainless Steel vs. N07716 Nickel

AISI 431 stainless steel belongs to the iron alloys classification, while N07716 nickel 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 (5, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is N07716 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 17
34
Fatigue Strength, MPa 430 to 610
690
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Shear Strength, MPa 550 to 840
580
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
860
Tensile Strength: Yield (Proof), MPa 710 to 1040
350

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 850
980
Melting Completion (Liquidus), °C 1510
1480
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
75
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 2.2
13
Embodied Energy, MJ/kg 31
190
Embodied Water, L/kg 120
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 32 to 50
28
Strength to Weight: Bending, points 27 to 36
24
Thermal Diffusivity, mm2/s 7.0
2.8
Thermal Shock Resistance, points 28 to 43
24

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 15 to 17
19 to 22
Iron (Fe), % 78.2 to 83.8
0 to 11.3
Manganese (Mn), % 0 to 1.0
0 to 0.2
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 1.3 to 2.5
59 to 63
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.6