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N08904 Stainless Steel vs. AISI 317LN Stainless Steel

Both N08904 stainless steel and AISI 317LN stainless steel are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is N08904 stainless steel and the bottom bar is AISI 317LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
45
Fatigue Strength, MPa 200
250
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 77
84
Shear Modulus, GPa 79
79
Shear Strength, MPa 370
430
Tensile Strength: Ultimate (UTS), MPa 540
620
Tensile Strength: Yield (Proof), MPa 240
270

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 32
21
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.8
4.3
Embodied Energy, MJ/kg 79
59
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 37
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
220
Resilience: Unit (Modulus of Resilience), kJ/m3 150
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 3.1
3.9
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19 to 23
18 to 20
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 38.8 to 53
57.9 to 67.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
3.0 to 4.0
Nickel (Ni), % 23 to 28
11 to 15
Nitrogen (N), % 0 to 0.1
0.1 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030