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EN 2.4851 Nickel vs. AISI 418 Stainless Steel

EN 2.4851 nickel belongs to the nickel alloys classification, while AISI 418 stainless steel belongs to the iron alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 2.4851 nickel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
17
Fatigue Strength, MPa 170
520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 430
680
Tensile Strength: Ultimate (UTS), MPa 650
1100
Tensile Strength: Yield (Proof), MPa 230
850

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1200
770
Melting Completion (Liquidus), °C 1360
1500
Melting Onset (Solidus), °C 1310
1460
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 11
25
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 49
15
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.9
Embodied Energy, MJ/kg 120
41
Embodied Water, L/kg 280
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
38
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 2.9
6.7
Thermal Shock Resistance, points 17
40

Alloy Composition

Aluminum (Al), % 1.0 to 1.7
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.030 to 0.1
0.15 to 0.2
Chromium (Cr), % 21 to 25
12 to 14
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.7 to 18
78.5 to 83.6
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 58 to 63
1.8 to 2.2
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.5
0
Tungsten (W), % 0
2.5 to 3.5