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AISI 310MoLN Stainless Steel vs. ASTM Grade HN Steel

Both AISI 310MoLN stainless steel and ASTM grade HN steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 26 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 AISI 310MoLN stainless steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
9.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 610
500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
1080
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 28
26
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.0
4.6
Embodied Energy, MJ/kg 70
66
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 34
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.7
3.5
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.020
0.2 to 0.5
Chromium (Cr), % 24 to 26
19 to 23
Iron (Fe), % 45.2 to 53.8
44.9 to 57.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 1.6 to 2.6
0 to 0.5
Nickel (Ni), % 20.5 to 23.5
23 to 27
Nitrogen (N), % 0.090 to 0.15
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040