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AISI 440A Stainless Steel vs. N07716 Nickel

AISI 440A stainless steel belongs to the iron alloys classification, while N07716 nickel belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 AISI 440A 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, % 5.0 to 20
34
Fatigue Strength, MPa 270 to 790
690
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Shear Strength, MPa 450 to 1040
580
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
860
Tensile Strength: Yield (Proof), MPa 420 to 1650
350

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 760
980
Melting Completion (Liquidus), °C 1480
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 23
11
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
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 87 to 120
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26 to 65
28
Strength to Weight: Bending, points 23 to 43
24
Thermal Diffusivity, mm2/s 6.2
2.8
Thermal Shock Resistance, points 26 to 65
24

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.6 to 0.75
0 to 0.030
Chromium (Cr), % 16 to 18
19 to 22
Iron (Fe), % 78.4 to 83.4
0 to 11.3
Manganese (Mn), % 0 to 1.0
0 to 0.2
Molybdenum (Mo), % 0 to 0.75
7.0 to 9.5
Nickel (Ni), % 0
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 0.015
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.6