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EN 1.4408 Stainless Steel vs. Grade TDSiCr Steel

Both EN 1.4408 stainless steel and grade TDSiCr steel are iron alloys. They have 69% 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 1.4408 stainless steel and the bottom bar is grade TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
590
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 510
1950

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 990
410
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.7
1.5
Embodied Energy, MJ/kg 52
20
Embodied Water, L/kg 150
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
70
Strength to Weight: Bending, points 18
45
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 11
58

Alloy Composition

Carbon (C), % 0 to 0.070
0.5 to 0.6
Chromium (Cr), % 18 to 20
0.5 to 0.8
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 62.4 to 71
96.6 to 97.8
Manganese (Mn), % 0 to 1.5
0.5 to 0.9
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 9.0 to 12
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.020