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AISI 304L Stainless Steel vs. S44800 Stainless Steel

Both AISI 304L stainless steel and S44800 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 33 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 AISI 304L stainless steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 350
190
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 6.7 to 46
23
Fatigue Strength, MPa 170 to 430
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
82
Shear Strength, MPa 370 to 680
370
Tensile Strength: Ultimate (UTS), MPa 540 to 1160
590
Tensile Strength: Yield (Proof), MPa 190 to 870
450

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
460
Maximum Temperature: Mechanical, °C 540
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
3.8
Embodied Energy, MJ/kg 44
52
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 20
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 240
120
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 1900
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 41
21
Strength to Weight: Bending, points 19 to 31
20
Thermal Diffusivity, mm2/s 4.2
4.6
Thermal Shock Resistance, points 12 to 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 18 to 20
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 65 to 74
62.6 to 66.5
Manganese (Mn), % 0 to 2.0
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 8.0 to 12
2.0 to 2.5
Nitrogen (N), % 0 to 0.1
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.020