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ASTM Grade HN Steel vs. Grade FDSiCr Steel

Both ASTM grade HN steel and grade FDSiCr steel are iron alloys. They have 54% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
580
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 500
1930

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1080
410
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
48
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.6
1.5
Embodied Energy, MJ/kg 66
20
Embodied Water, L/kg 180
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
69
Strength to Weight: Bending, points 18
44
Thermal Diffusivity, mm2/s 3.5
13
Thermal Shock Resistance, points 11
58

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.5 to 0.6
Chromium (Cr), % 19 to 23
0.5 to 0.8
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 44.9 to 57.8
96.5 to 97.8
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
1.2 to 1.6
Sulfur (S), % 0 to 0.040
0 to 0.025