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Annealed AISI 304LN vs. Annealed SAE-AISI O6

Both annealed AISI 304LN and annealed SAE-AISI O6 are iron alloys. Both are furnished in the annealed condition. They have 71% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 304LN and the bottom bar is annealed SAE-AISI O6.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 42
20
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.28
0.29
Rockwell B Hardness 83
93
Shear Modulus, GPa 77
71
Shear Strength, MPa 400
420
Tensile Strength: Ultimate (UTS), MPa 580
670
Tensile Strength: Yield (Proof), MPa 230
410

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.3
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 44
21
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 13
22

Alloy Composition

Carbon (C), % 0 to 0.030
1.3 to 1.6
Chromium (Cr), % 18 to 20
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 65 to 73.9
94.6 to 97.7
Manganese (Mn), % 0 to 2.0
0.3 to 1.1
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 8.0 to 12
0 to 0.3
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.55 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030