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AISI 316LN Stainless Steel vs. AISI 409Cb Stainless Steel

Both AISI 316LN stainless steel and AISI 409Cb stainless steel are iron alloys. Both are furnished in the annealed condition. They have 79% of their average alloy composition in common. There are 32 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 AISI 316LN stainless steel and the bottom bar is AISI 409Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
24
Fatigue Strength, MPa 200
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 82
75
Shear Strength, MPa 410
270
Tensile Strength: Ultimate (UTS), MPa 590
420
Tensile Strength: Yield (Proof), MPa 230
200

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 940
710
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
8.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.2
Embodied Energy, MJ/kg 53
31
Embodied Water, L/kg 150
94

Common Calculations

PREN (Pitting Resistance) 27
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
83
Resilience: Unit (Modulus of Resilience), kJ/m3 130
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 4.1
6.7
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 16 to 18
10.5 to 11.7
Iron (Fe), % 62 to 71.9
84.9 to 89.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0 to 0.5
Niobium (Nb), % 0
0 to 0.75
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040