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EN 2.4642 Nickel vs. SAE-AISI 8740 Steel

EN 2.4642 nickel belongs to the nickel alloys classification, while SAE-AISI 8740 steel belongs to the iron 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 EN 2.4642 nickel and the bottom bar is SAE-AISI 8740 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
11 to 23
Fatigue Strength, MPa 200
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 450
370 to 400
Tensile Strength: Ultimate (UTS), MPa 670
580 to 670
Tensile Strength: Yield (Proof), MPa 270
380 to 570

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1010
410
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
39
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.6
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.5
Embodied Energy, MJ/kg 120
20
Embodied Water, L/kg 290
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 180
390 to 850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
20 to 24
Strength to Weight: Bending, points 21
20 to 22
Thermal Diffusivity, mm2/s 3.1
10
Thermal Shock Resistance, points 18
17 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.050
0.38 to 0.43
Chromium (Cr), % 27 to 31
0.4 to 0.6
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
96.5 to 97.7
Manganese (Mn), % 0 to 0.5
0.75 to 1.0
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 55.9 to 66
0.4 to 0.7
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040