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SAE-AISI 4340M Steel vs. N06650 Nickel

SAE-AISI 4340M steel belongs to the iron alloys classification, while N06650 nickel belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4340M steel and the bottom bar is N06650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 6.0
50
Fatigue Strength, MPa 690
420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
82
Shear Strength, MPa 1360
640
Tensile Strength: Ultimate (UTS), MPa 2340
900
Tensile Strength: Yield (Proof), MPa 1240
460

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 430
980
Melting Completion (Liquidus), °C 1440
1500
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
60
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 1.9
10
Embodied Energy, MJ/kg 26
140
Embodied Water, L/kg 55
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
380
Resilience: Unit (Modulus of Resilience), kJ/m3 4120
490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 84
29
Strength to Weight: Bending, points 51
24
Thermal Shock Resistance, points 70
24

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.5
Carbon (C), % 0.38 to 0.43
0 to 0.030
Chromium (Cr), % 0.7 to 1.0
19 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 93.3 to 94.8
12 to 16
Manganese (Mn), % 0.65 to 0.9
0 to 0.5
Molybdenum (Mo), % 0.35 to 0.45
9.5 to 12.5
Nickel (Ni), % 1.7 to 2.0
44.4 to 58.9
Niobium (Nb), % 0
0.050 to 0.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.012
0 to 0.020
Silicon (Si), % 1.5 to 1.8
0 to 0.5
Sulfur (S), % 0 to 0.012
0 to 0.010
Tungsten (W), % 0
0.5 to 2.5
Vanadium (V), % 0.050 to 0.1
0