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SAE-AISI 4142 Steel vs. N09777 Nickel

SAE-AISI 4142 steel belongs to the iron alloys classification, while N09777 nickel belongs to the nickel alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4142 steel and the bottom bar is N09777 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
39
Fatigue Strength, MPa 250
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
77
Shear Strength, MPa 370
400
Tensile Strength: Ultimate (UTS), MPa 590
580
Tensile Strength: Yield (Proof), MPa 370
240

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
960
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
38
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.5
7.4
Embodied Energy, MJ/kg 20
100
Embodied Water, L/kg 51
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 360
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
20
Strength to Weight: Bending, points 20
19
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.4 to 0.45
0 to 0.030
Chromium (Cr), % 0.8 to 1.1
14 to 19
Iron (Fe), % 96.8 to 97.8
28.5 to 47.5
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
2.5 to 5.5
Nickel (Ni), % 0
34 to 42
Niobium (Nb), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
2.0 to 3.0