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EN 1.4945 Stainless Steel vs. Grade VDSiCr Steel

Both EN 1.4945 stainless steel and grade VDSiCr steel are iron alloys. They have 64% of their average alloy composition in common. There are 25 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 EN 1.4945 stainless steel and the bottom bar is grade VDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
590
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 640 to 740
1950

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 920
410
Melting Completion (Liquidus), °C 1490
1440
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
46
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.2
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.0
1.5
Embodied Energy, MJ/kg 73
20
Embodied Water, L/kg 150
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
70
Strength to Weight: Bending, points 20 to 22
45
Thermal Diffusivity, mm2/s 3.7
12
Thermal Shock Resistance, points 14 to 16
58

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.5 to 0.6
Chromium (Cr), % 15.5 to 17.5
0.5 to 0.8
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 57.9 to 65.7
96.6 to 97.8
Manganese (Mn), % 0 to 1.5
0.5 to 0.9
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
1.2 to 1.6
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 2.5 to 3.5
0