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ASTM Grade HN Steel vs. EN 1.8821 Steel

Both ASTM grade HN steel and EN 1.8821 steel are iron alloys. They have 53% 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 1.8821 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
25
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
530

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
400
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
49
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.6
1.6
Embodied Energy, MJ/kg 66
21
Embodied Water, L/kg 180
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 3.5
13
Thermal Shock Resistance, points 11
16

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.030
Carbon (C), % 0.2 to 0.5
0 to 0.14
Chromium (Cr), % 19 to 23
0
Iron (Fe), % 44.9 to 57.8
96.8 to 99.98
Manganese (Mn), % 0 to 2.0
0 to 1.6
Molybdenum (Mo), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 23 to 27
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.1