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ASTM Grade HN Steel vs. S35500 Stainless Steel

Both ASTM grade HN steel and S35500 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is S35500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0
14
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 500
1330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 1080
870
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
16
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 26
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.6
3.5
Embodied Energy, MJ/kg 66
47
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 22
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
47 to 53
Strength to Weight: Bending, points 18
34 to 37
Thermal Diffusivity, mm2/s 3.5
4.4
Thermal Shock Resistance, points 11
44 to 49

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.1 to 0.15
Chromium (Cr), % 19 to 23
15 to 16
Iron (Fe), % 44.9 to 57.8
73.2 to 77.7
Manganese (Mn), % 0 to 2.0
0.5 to 1.3
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.2
Nickel (Ni), % 23 to 27
4.0 to 5.0
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030