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S21800 Stainless Steel vs. Grade VDSiCr Steel

Both S21800 stainless steel and grade VDSiCr steel are iron alloys. They have 65% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is grade VDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
590
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Reduction in Area, % 62
48
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 740
1950

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 900
410
Melting Completion (Liquidus), °C 1360
1440
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.2
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 45
20
Embodied Water, L/kg 150
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
70
Strength to Weight: Bending, points 24
45
Thermal Shock Resistance, points 17
58

Alloy Composition

Carbon (C), % 0 to 0.1
0.5 to 0.6
Chromium (Cr), % 16 to 18
0.5 to 0.8
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 59.1 to 65.4
96.6 to 97.8
Manganese (Mn), % 7.0 to 9.0
0.5 to 0.9
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 3.5 to 4.5
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.020