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Nickel 825 vs. SAE-AISI 4142 Steel

Nickel 825 belongs to the nickel alloys classification, while SAE-AISI 4142 steel belongs to the iron alloys. They have a modest 32% 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 (3, in this case) are not shown.

For each property being compared, the top bar is nickel 825 and the bottom bar is SAE-AISI 4142 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
20
Fatigue Strength, MPa 190
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 430
370
Tensile Strength: Ultimate (UTS), MPa 650
590
Tensile Strength: Yield (Proof), MPa 260
370

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 980
420
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 11
44
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 41
2.4
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.2
1.5
Embodied Energy, MJ/kg 100
20
Embodied Water, L/kg 230
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
100
Resilience: Unit (Modulus of Resilience), kJ/m3 170
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 2.9
12
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0 to 0.050
0.4 to 0.45
Chromium (Cr), % 19.5 to 23.5
0.8 to 1.1
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 22 to 37.9
96.8 to 97.8
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0.15 to 0.25
Nickel (Ni), % 38 to 46
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0.6 to 1.2
0