In this post I'll talk about AISI 431. First let's describe it and then have a look at its material's properties.
What is AISI 431?AISI 431 is the most corrosion resistant of the martensitic grades. It also has excellent tensile and torque strength and good toughness.
ApplicationStructural parts (that are exposed to marine atmosphere), aircraft fasteners and fittings.
Ok let's start with AISI 431 Chemical Composition.
C, Carbon max.0.20
Mn, Manganese max.1.00
P, Phosphorus max.0.040
S, Sulfur max.0.030
Si, Silicon max.1.00
Learn more about Chemical Composition.
Learn more about Hardness.
Density7.7 g/cm3, 7700 kg/m3.
Learn more about Density.
Elastic Modulus200 GPa.
Learn more about Elastic Modulus.
Learn more about Poisson's ratio.
Allowable Stress or Factor of SafetyDepends on the project (And its factor of safety).
Learn more about Allowable Stress or Factor of Safety.
AISI ClassroomAre you having trouble understanding the basics of AISI?
What is AISI: Classification and specification?
This video will walk you through:
ReferencesASTM A240 and other references.
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