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S21800 Stainless Steel vs. Grade TDSiCrV Steel

Both S21800 stainless steel and grade TDSiCrV 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 TDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
630
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
2100

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 900
420
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
2.3
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.1
1.9
Embodied Energy, MJ/kg 45
26
Embodied Water, L/kg 150
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
75
Strength to Weight: Bending, points 24
47
Thermal Shock Resistance, points 17
63

Alloy Composition

Carbon (C), % 0 to 0.1
0.5 to 0.7
Chromium (Cr), % 16 to 18
0.5 to 1.0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 59.1 to 65.4
96.1 to 97.8
Manganese (Mn), % 7.0 to 9.0
0.4 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 0.020
Silicon (Si), % 3.5 to 4.5
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0
0.1 to 0.25