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Grade FDSiCr Steel vs. EN 1.7703 Steel

Both grade FDSiCr steel and EN 1.7703 steel are iron alloys. They have a very high 97% 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 FDSiCr steel and the bottom bar is EN 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 1930
670 to 690

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 410
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 48
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
4.2
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
2.5
Embodied Energy, MJ/kg 20
35
Embodied Water, L/kg 48
61

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 69
24
Strength to Weight: Bending, points 44
22
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 58
19 to 20

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.11 to 0.15
Chromium (Cr), % 0.5 to 0.8
2.0 to 2.5
Copper (Cu), % 0 to 0.12
0 to 0.2
Iron (Fe), % 96.5 to 97.8
94.6 to 96.4
Manganese (Mn), % 0.5 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 1.2 to 1.6
0 to 0.1
Sulfur (S), % 0 to 0.025
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35