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SAE-AISI 5140 Steel vs. N06455 Nickel

SAE-AISI 5140 steel belongs to the iron alloys classification, while N06455 nickel belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5140 steel and the bottom bar is N06455 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 12 to 29
47
Fatigue Strength, MPa 220 to 570
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
82
Shear Strength, MPa 360 to 600
550
Tensile Strength: Ultimate (UTS), MPa 560 to 970
780
Tensile Strength: Yield (Proof), MPa 290 to 840
330

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 420
960
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 45
10
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
65
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.4
12
Embodied Energy, MJ/kg 19
160
Embodied Water, L/kg 49
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
300
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20 to 34
24
Strength to Weight: Bending, points 19 to 28
21
Thermal Diffusivity, mm2/s 12
2.7
Thermal Shock Resistance, points 16 to 29
24

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.015
Chromium (Cr), % 0.7 to 0.9
14 to 18
Cobalt (Co), % 0
0 to 2.0
Iron (Fe), % 97.3 to 98.1
0 to 3.0
Manganese (Mn), % 0.7 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
14 to 17
Nickel (Ni), % 0
58.1 to 72
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.080
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0 to 0.7