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Nickel 22 vs. SAE-AISI 4340M Steel

Nickel 22 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 22 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, % 49
6.0
Fatigue Strength, MPa 330
690
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
72
Shear Strength, MPa 560
1360
Tensile Strength: Ultimate (UTS), MPa 790
2340
Tensile Strength: Yield (Proof), MPa 360
1240

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 990
430
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
38
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 70
3.9
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 12
1.9
Embodied Energy, MJ/kg 170
26
Embodied Water, L/kg 300
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
120
Resilience: Unit (Modulus of Resilience), kJ/m3 300
4120
Stiffness to Weight: Axial, points 14
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 2.7
10
Thermal Shock Resistance, points 24
70

Alloy Composition

Carbon (C), % 0 to 0.015
0.38 to 0.43
Chromium (Cr), % 20 to 22.5
0.7 to 1.0
Cobalt (Co), % 0 to 2.5
0
Iron (Fe), % 2.0 to 6.0
93.3 to 94.8
Manganese (Mn), % 0 to 0.015
0.65 to 0.9
Molybdenum (Mo), % 12.5 to 14.5
0.35 to 0.45
Nickel (Ni), % 50.8 to 63
1.7 to 2.0
Phosphorus (P), % 0 to 0.020
0 to 0.012
Silicon (Si), % 0 to 0.080
1.5 to 1.8
Sulfur (S), % 0 to 0.020
0 to 0.012
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0.050 to 0.1