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EN 2.4851 Nickel vs. SAE-AISI 4320 Steel

EN 2.4851 nickel belongs to the nickel alloys classification, while SAE-AISI 4320 steel belongs to the iron alloys.

For each property being compared, the top bar is EN 2.4851 nickel and the bottom bar is SAE-AISI 4320 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
21 to 29
Fatigue Strength, MPa 170
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 430
370 to 500
Tensile Strength: Ultimate (UTS), MPa 650
570 to 790
Tensile Strength: Yield (Proof), MPa 230
430 to 460

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1200
420
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 11
46
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 49
3.4
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.7
Embodied Energy, MJ/kg 120
22
Embodied Water, L/kg 280
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 130
480 to 560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
20 to 28
Strength to Weight: Bending, points 20
19 to 24
Thermal Diffusivity, mm2/s 2.9
13
Thermal Shock Resistance, points 17
19 to 27

Alloy Composition

Aluminum (Al), % 1.0 to 1.7
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.030 to 0.1
0.17 to 0.22
Chromium (Cr), % 21 to 25
0.4 to 0.6
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.7 to 18
95.8 to 97
Manganese (Mn), % 0 to 1.0
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 58 to 63
1.7 to 2.0
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
Titanium (Ti), % 0 to 0.5
0