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Nickel 684 vs. Grade VDSiCrV Steel

Nickel 684 belongs to the nickel alloys classification, while grade VDSiCrV steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
630
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 17
48
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 1190
2100

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.3
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 10
1.9
Embodied Energy, MJ/kg 140
26
Embodied Water, L/kg 360
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
75
Strength to Weight: Bending, points 30
47
Thermal Shock Resistance, points 34
63

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0.5 to 0.7
Chromium (Cr), % 15 to 20
0.5 to 1.0
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0 to 0.060
Iron (Fe), % 0 to 4.0
96.1 to 97.8
Manganese (Mn), % 0 to 0.75
0.4 to 0.9
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 42.7 to 64
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.75
1.2 to 1.7
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 2.5 to 3.3
0
Vanadium (V), % 0
0.1 to 0.25