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Nickel 684 vs. EN 1.8868 Steel

Nickel 684 belongs to the nickel alloys classification, while EN 1.8868 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.8868 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
25
Fatigue Strength, MPa 390
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 710
350
Tensile Strength: Ultimate (UTS), MPa 1190
540
Tensile Strength: Yield (Proof), MPa 800
350

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
410
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.4
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 10
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 360
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
330
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 40
19
Strength to Weight: Bending, points 30
19
Thermal Shock Resistance, points 34
16

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0 to 0.0050
Carbon (C), % 0 to 0.15
0 to 0.16
Chromium (Cr), % 15 to 20
0 to 0.3
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0 to 0.3
Iron (Fe), % 0 to 4.0
96.4 to 100
Manganese (Mn), % 0 to 0.75
0 to 1.5
Molybdenum (Mo), % 3.0 to 5.0
0 to 0.25
Nickel (Ni), % 42.7 to 64
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.0080
Titanium (Ti), % 2.5 to 3.3
0 to 0.030
Vanadium (V), % 0
0 to 0.060
Zirconium (Zr), % 0
0 to 0.050