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Grade FDC Steel vs. ASTM Grade HN Steel

Both grade FDC steel and ASTM grade HN steel are iron alloys. They have 53% 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 grade FDC steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
140
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 1680
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1080
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
13
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.6
Embodied Energy, MJ/kg 19
66
Embodied Water, L/kg 47
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
17
Strength to Weight: Bending, points 40
18
Thermal Diffusivity, mm2/s 14
3.5
Thermal Shock Resistance, points 50
11

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.2 to 0.5
Chromium (Cr), % 0 to 0.3
19 to 23
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 98 to 99.4
44.9 to 57.8
Manganese (Mn), % 0.5 to 1.2
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.1 to 0.35
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040