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N08800 Stainless Steel vs. AISI 309 Stainless Steel

Both N08800 stainless steel and AISI 309 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 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 N08800 stainless steel and the bottom bar is AISI 309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5 to 34
34 to 47
Fatigue Strength, MPa 150 to 390
250 to 280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
78
Shear Strength, MPa 340 to 580
420 to 470
Tensile Strength: Ultimate (UTS), MPa 500 to 1000
600 to 710
Tensile Strength: Yield (Proof), MPa 190 to 830
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 490
440
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
3.6
Embodied Energy, MJ/kg 76
51
Embodied Water, L/kg 200
170

Common Calculations

PREN (Pitting Resistance) 21
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 160
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 96 to 1740
170 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 35
21 to 25
Strength to Weight: Bending, points 18 to 28
20 to 23
Thermal Diffusivity, mm2/s 3.0
4.3
Thermal Shock Resistance, points 13 to 25
14 to 16

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.1
0 to 0.2
Chromium (Cr), % 19 to 23
22 to 24
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 39.5 to 50.7
58 to 66
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 30 to 35
12 to 15
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0

Comparable Variants