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N08031 Stainless Steel vs. ASTM Grade HN Steel

Both N08031 stainless steel and ASTM grade HN steel are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is N08031 stainless steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
9.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 730
500

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
1080
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
13
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
26
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 7.1
4.6
Embodied Energy, MJ/kg 96
66
Embodied Water, L/kg 240
180

Common Calculations

PREN (Pitting Resistance) 52
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 3.1
3.5
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.015
0.2 to 0.5
Chromium (Cr), % 26 to 28
19 to 23
Copper (Cu), % 1.0 to 1.4
0
Iron (Fe), % 29 to 36.9
44.9 to 57.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.5
Nickel (Ni), % 30 to 32
23 to 27
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040