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ASTM Grade HN Steel vs. S32050 Stainless Steel

Both ASTM grade HN steel and S32050 stainless steel are iron alloys. They have a moderately high 91% 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 S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 9.0
46
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 500
770

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 26
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.6
6.0
Embodied Energy, MJ/kg 66
81
Embodied Water, L/kg 180
210

Common Calculations

PREN (Pitting Resistance) 22
48
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 3.5
3.3
Thermal Shock Resistance, points 11
17

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 19 to 23
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 44.9 to 57.8
43.1 to 51.8
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
6.0 to 6.6
Nickel (Ni), % 23 to 27
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.020