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AISI 347LN Stainless Steel vs. S32101 Stainless Steel

Both AISI 347LN stainless steel and S32101 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 90% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 347LN stainless steel and the bottom bar is S32101 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 200
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 400
490
Tensile Strength: Ultimate (UTS), MPa 590
740
Tensile Strength: Yield (Proof), MPa 230
500

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 460
430
Maximum Temperature: Mechanical, °C 940
1000
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 18
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
2.6
Embodied Energy, MJ/kg 49
38
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 19
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
230
Resilience: Unit (Modulus of Resilience), kJ/m3 130
640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
27
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 13
20

Alloy Composition

Carbon (C), % 0.0050 to 0.020
0 to 0.040
Chromium (Cr), % 17 to 19
21 to 22
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 64.3 to 73.7
67.3 to 73.3
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Molybdenum (Mo), % 0
0.1 to 0.8
Nickel (Ni), % 9.0 to 13
1.4 to 1.7
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0.060 to 0.1
0.2 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030