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S44800 Stainless Steel vs. N08811 Stainless Steel

Both S44800 stainless steel and N08811 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 69% 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 S44800 stainless steel and the bottom bar is N08811 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
33
Fatigue Strength, MPa 300
150
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
77
Shear Strength, MPa 370
340
Tensile Strength: Ultimate (UTS), MPa 590
510
Tensile Strength: Yield (Proof), MPa 450
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
490
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.8
5.3
Embodied Energy, MJ/kg 52
76
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 42
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 480
94
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 4.6
3.0
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.010
0.060 to 0.1
Chromium (Cr), % 28 to 30
19 to 23
Copper (Cu), % 0 to 0.15
0 to 0.75
Iron (Fe), % 62.6 to 66.5
39.5 to 50.6
Manganese (Mn), % 0 to 0.3
0 to 1.5
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
30 to 35
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6