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AISI 418 Stainless Steel vs. Grade VDCrV Steel

Both AISI 418 stainless steel and grade VDCrV steel are iron alloys. They have 82% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is grade VDCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
520
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Reduction in Area, % 50
51
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 1100
1730

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 770
410
Melting Completion (Liquidus), °C 1500
1450
Melting Onset (Solidus), °C 1460
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.9
Embodied Energy, MJ/kg 41
26
Embodied Water, L/kg 110
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
61
Strength to Weight: Bending, points 29
41
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 40
51

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.62 to 0.72
Chromium (Cr), % 12 to 14
0.4 to 0.6
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 78.5 to 83.6
97.8 to 98.8
Manganese (Mn), % 0 to 0.5
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0
0.15 to 0.25