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AISI 440A Stainless Steel vs. N08120 Nickel

AISI 440A stainless steel belongs to the iron alloys classification, while N08120 nickel belongs to the nickel alloys. They have 50% of their average alloy composition in common. There are 28 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 N08120 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
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 450 to 1040
470
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
700
Tensile Strength: Yield (Proof), MPa 420 to 1650
310

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Mechanical, °C 760
1000
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
11
Thermal Expansion, µm/m-K 10
14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
45
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.2
7.2
Embodied Energy, MJ/kg 31
100
Embodied Water, L/kg 120
240

Common Calculations

PREN (Pitting Resistance) 18
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 65
24
Strength to Weight: Bending, points 23 to 43
21
Thermal Diffusivity, mm2/s 6.2
3.0
Thermal Shock Resistance, points 26 to 65
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.6 to 0.75
0.020 to 0.1
Chromium (Cr), % 16 to 18
23 to 27
Cobalt (Co), % 0
0 to 3.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78.4 to 83.4
21 to 41.4
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
0 to 2.5
Nickel (Ni), % 0
35 to 39
Niobium (Nb), % 0
0.4 to 0.9
Nitrogen (N), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0
0 to 2.5