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Nickel 625 vs. Grade VDC Steel

Nickel 625 belongs to the nickel alloys classification, while grade VDC steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is grade VDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 790 to 910
1700

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 980
400
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 80
1.9
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
1.4
Embodied Energy, MJ/kg 190
19
Embodied Water, L/kg 290
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
60
Strength to Weight: Bending, points 22 to 24
40
Thermal Diffusivity, mm2/s 2.9
14
Thermal Shock Resistance, points 22 to 25
50

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0.6 to 0.75
Chromium (Cr), % 20 to 23
0 to 0.3
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 0 to 5.0
98.3 to 99.35
Manganese (Mn), % 0 to 0.5
0.5 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
0
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.5
0.15 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0 to 0.4
0