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AISI 316 Stainless Steel vs. AISI 316LN Stainless Steel

Both AISI 316 stainless steel and AISI 316LN stainless steel are iron alloys. Their average alloy composition is basically identical.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 8.0 to 55
42
Fatigue Strength, MPa 210 to 430
200
Poisson's Ratio 0.28
0.28
Reduction in Area, % 80
51
Rockwell B Hardness 80
80
Shear Modulus, GPa 78
82
Shear Strength, MPa 350 to 690
410
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
590
Tensile Strength: Yield (Proof), MPa 230 to 850
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 590
940
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Calomel Potential, mV -50
-40
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.9
3.8
Embodied Energy, MJ/kg 53
53
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 26
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
200
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 41
21
Strength to Weight: Bending, points 18 to 31
20
Thermal Diffusivity, mm2/s 4.1
4.1
Thermal Shock Resistance, points 11 to 26
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 16 to 18
16 to 18
Iron (Fe), % 62 to 72
62 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
2.0 to 3.0
Nickel (Ni), % 10 to 14
10 to 14
Nitrogen (N), % 0 to 0.1
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030