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Grade TDSiCr Steel vs. EN 1.7390 Steel

Both grade TDSiCr steel and EN 1.7390 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade TDSiCr steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 590
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 48
50
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 1950
710

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 410
510
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
4.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 20
23
Embodied Water, L/kg 48
69

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 70
25
Strength to Weight: Bending, points 45
23
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 58
20

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.18
Chromium (Cr), % 0.5 to 0.8
4.0 to 6.0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 96.6 to 97.8
91.9 to 95.3
Manganese (Mn), % 0.5 to 0.9
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 1.2 to 1.6
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.015