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AISI 303Se Stainless Steel vs. AISI 316LN Stainless Steel

Both AISI 303Se stainless steel and AISI 316LN stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 94% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 303Se stainless steel and the bottom bar is AISI 316LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
42
Fatigue Strength, MPa 210
200
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
51
Shear Modulus, GPa 77
82
Shear Strength, MPa 410
410
Tensile Strength: Ultimate (UTS), MPa 590
590
Tensile Strength: Yield (Proof), MPa 230
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 930
940
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
3.8
Embodied Energy, MJ/kg 42
53
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
200
Resilience: Unit (Modulus of Resilience), kJ/m3 130
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.3
4.1
Thermal Shock Resistance, points 13
13

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
16 to 18
Iron (Fe), % 67.2 to 74.9
62 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 8.0 to 10
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.2
0 to 0.045
Selenium (Se), % 0.15 to 0.35
0
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.060
0 to 0.030