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AISI 384 Stainless Steel vs. S44626 Stainless Steel

Both AISI 384 stainless steel and S44626 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 384 stainless steel and the bottom bar is S44626 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 480
540

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
560
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
14
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.7
2.9
Embodied Energy, MJ/kg 52
42
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 16
30
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 4.3
4.6
Thermal Shock Resistance, points 11
18

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.060
Chromium (Cr), % 15 to 17
25 to 27
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 60.9 to 68
68.1 to 74.1
Manganese (Mn), % 0 to 2.0
0 to 0.75
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 17 to 19
0 to 0.5
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.2 to 1.0