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SAE-AISI 4320 Steel vs. Nickel 242

SAE-AISI 4320 steel belongs to the iron alloys classification, while nickel 242 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4320 steel and the bottom bar is nickel 242.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 21 to 29
45
Fatigue Strength, MPa 320
300
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
84
Shear Strength, MPa 370 to 500
570
Tensile Strength: Ultimate (UTS), MPa 570 to 790
820
Tensile Strength: Yield (Proof), MPa 430 to 460
350

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
930
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1290
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 46
11
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
75
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 1.7
14
Embodied Energy, MJ/kg 22
180
Embodied Water, L/kg 52
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
300
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 560
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 20 to 28
25
Strength to Weight: Bending, points 19 to 24
21
Thermal Diffusivity, mm2/s 13
3.1
Thermal Shock Resistance, points 19 to 27
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.17 to 0.22
0 to 0.030
Chromium (Cr), % 0.4 to 0.6
7.0 to 9.0
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 95.8 to 97
0 to 2.0
Manganese (Mn), % 0.45 to 0.65
0 to 0.8
Molybdenum (Mo), % 0.2 to 0.3
24 to 26
Nickel (Ni), % 1.7 to 2.0
59.3 to 69
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.015