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ASTM Grade HN Steel vs. S44535 Stainless Steel

Both ASTM grade HN steel and S44535 stainless steel are iron alloys. They have 73% 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 S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0
28
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 500
450

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1080
1000
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 26
11
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.6
2.4
Embodied Energy, MJ/kg 66
34
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 22
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
16
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 3.5
5.6
Thermal Shock Resistance, points 11
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 19 to 23
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 44.9 to 57.8
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.020
Titanium (Ti), % 0
0.030 to 0.2