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ASTM Grade HN Steel vs. EN 1.4659 Stainless Steel

Both ASTM grade HN steel and EN 1.4659 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 9.0
49
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 500
900

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1400
1480
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 26
37
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 4.6
6.5
Embodied Energy, MJ/kg 66
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 22
54
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
31
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 3.5
3.2
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.020
Chromium (Cr), % 19 to 23
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 44.9 to 57.8
35.7 to 45.7
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.5
5.5 to 6.5
Nickel (Ni), % 23 to 27
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5