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ASTM Grade HN Steel vs. EN 1.6368 Steel

Both ASTM grade HN steel and EN 1.6368 steel are iron alloys. They have 54% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is EN 1.6368 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
18
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
660 to 690

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
410
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
40
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
3.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.6
1.7
Embodied Energy, MJ/kg 66
22
Embodied Water, L/kg 180
53

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
23 to 24
Strength to Weight: Bending, points 18
21 to 22
Thermal Diffusivity, mm2/s 3.5
11
Thermal Shock Resistance, points 11
20

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.040
Carbon (C), % 0.2 to 0.5
0 to 0.17
Chromium (Cr), % 19 to 23
0 to 0.3
Copper (Cu), % 0
0.5 to 0.8
Iron (Fe), % 44.9 to 57.8
95.1 to 97.2
Manganese (Mn), % 0 to 2.0
0.8 to 1.2
Molybdenum (Mo), % 0 to 0.5
0.25 to 0.5
Nickel (Ni), % 23 to 27
1.0 to 1.3
Niobium (Nb), % 0
0.015 to 0.045
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0.25 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010