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AISI 347LN Stainless Steel vs. N08700 Stainless Steel

Both AISI 347LN stainless steel and N08700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is AISI 347LN stainless steel and the bottom bar is N08700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
32
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
45
Rockwell B Hardness 79
81
Shear Modulus, GPa 77
79
Shear Strength, MPa 400
410
Tensile Strength: Ultimate (UTS), MPa 590
620
Tensile Strength: Yield (Proof), MPa 230
270

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 460
460
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 18
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.5
6.0
Embodied Energy, MJ/kg 49
82
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 19
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
160
Resilience: Unit (Modulus of Resilience), kJ/m3 130
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.1
3.5
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0.0050 to 0.020
0 to 0.040
Chromium (Cr), % 17 to 19
19 to 23
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 64.3 to 73.7
42 to 52.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
4.3 to 5.0
Nickel (Ni), % 9.0 to 13
24 to 26
Niobium (Nb), % 0.2 to 0.5
0 to 0.4
Nitrogen (N), % 0.060 to 0.1
0
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