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Nickel 242 vs. SAE-AISI 4340M Steel

Nickel 242 belongs to the nickel alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is nickel 242 and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 45
6.0
Fatigue Strength, MPa 300
690
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 84
72
Shear Strength, MPa 570
1360
Tensile Strength: Ultimate (UTS), MPa 820
2340
Tensile Strength: Yield (Proof), MPa 350
1240

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 930
430
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1290
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 11
38
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 75
3.9
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 14
1.9
Embodied Energy, MJ/kg 180
26
Embodied Water, L/kg 290
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
120
Resilience: Unit (Modulus of Resilience), kJ/m3 280
4120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 25
84
Strength to Weight: Bending, points 21
51
Thermal Diffusivity, mm2/s 3.1
10
Thermal Shock Resistance, points 25
70

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0 to 0.030
0.38 to 0.43
Chromium (Cr), % 7.0 to 9.0
0.7 to 1.0
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
93.3 to 94.8
Manganese (Mn), % 0 to 0.8
0.65 to 0.9
Molybdenum (Mo), % 24 to 26
0.35 to 0.45
Nickel (Ni), % 59.3 to 69
1.7 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.012
Silicon (Si), % 0 to 0.8
1.5 to 1.8
Sulfur (S), % 0 to 0.015
0 to 0.012
Vanadium (V), % 0
0.050 to 0.1