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ASTM Grade HF Steel vs. Grade FDSiCrV Steel

Both ASTM grade HF steel and grade FDSiCrV steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 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 ASTM grade HF steel and the bottom bar is grade FDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
630
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 550
2100

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
47
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 17
2.3
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.2
1.9
Embodied Energy, MJ/kg 46
26
Embodied Water, L/kg 150
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
75
Strength to Weight: Bending, points 19
47
Thermal Diffusivity, mm2/s 4.2
13
Thermal Shock Resistance, points 12
63

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.5 to 0.7
Chromium (Cr), % 18 to 23
0.5 to 1.0
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 60 to 73.8
96 to 97.8
Manganese (Mn), % 0 to 2.0
0.4 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
1.2 to 1.7
Sulfur (S), % 0 to 0.040
0 to 0.025
Vanadium (V), % 0
0.1 to 0.25