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Grade TDSiCr Steel vs. EN 1.4945 Stainless Steel

Both grade TDSiCr steel and EN 1.4945 stainless 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 grade TDSiCr steel and the bottom bar is EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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