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Grade VDC Steel vs. Nickel 625

Grade VDC steel belongs to the iron alloys classification, while nickel 625 belongs to the nickel 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 grade VDC steel and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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