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ASTM Grade HN Steel vs. EN 1.4821 Stainless Steel

Both ASTM grade HN steel and EN 1.4821 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0
18
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 500
730

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 13
17
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
15
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 4.6
2.9
Embodied Energy, MJ/kg 66
41
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 22
26
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 3.5
4.6
Thermal Shock Resistance, points 11
21

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.1 to 0.2
Chromium (Cr), % 19 to 23
24.5 to 26.5
Iron (Fe), % 44.9 to 57.8
64.2 to 71.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0.8 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.015