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AISI 309H Stainless Steel vs. N08320 Stainless Steel

Both AISI 309H stainless steel and N08320 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 309H stainless steel and the bottom bar is N08320 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 200
190
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 82
84
Shear Modulus, GPa 78
78
Shear Strength, MPa 400
400
Tensile Strength: Ultimate (UTS), MPa 580
580
Tensile Strength: Yield (Proof), MPa 230
220

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
28
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.6
4.9
Embodied Energy, MJ/kg 51
69
Embodied Water, L/kg 170
200

Common Calculations

PREN (Pitting Resistance) 23
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
180
Resilience: Unit (Modulus of Resilience), kJ/m3 130
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
20
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 13
13

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.050
Chromium (Cr), % 22 to 24
21 to 23
Iron (Fe), % 58.1 to 66
40.4 to 50
Manganese (Mn), % 0 to 2.0
0 to 2.5
Nickel (Ni), % 12 to 15
25 to 27
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030