In this post I'll talk about SAE 3140. First let's describe it and then have a look at its material's properties.
What is SAE 3140?SAE 3140 is a nickel-chromium with approximately 0.40% carbon content.
ApplicationThey are used for case-hardened parts and for forgings where high tensile strength and great hardness are required.
Ok let's start with SAE 3140 Chemical Composition.
P, Phosphorus max.0.040
S, Sulfur max.0.040
Learn more about Chemical Composition.
Now it's the mechanical properties turn:
Yield Strength520 MPa
Learn more about Yield Strength.
Tensile Strength790 MPa
Learn more about Tensile Strength.
Learn more about Elongation.
Learn more about Density.
Allowable Stress or Factor of SafetyDepends on the project (And its factor of safety).
Learn more about Allowable Stress or Factor of Safety.
My Material's Ranking ResearchWhile engineers will often look for the cheapest material they can use, I took a different approach to material's selection to help newbie students.
I ranked materials according to their yield strengths and SAE 3140 currently ranks 19 in my yield strength index. This means there are other 18 materials that are more resistant.
Note: I've analysed 162 materials in order to create an yield strength index. Check my material's comparison post for more details.
SAE ClassroomAre you having trouble understanding the basics of SAE?
What is SAE: Classification and specification?
This video will walk you through:
ReferencesASTM A519 and other references.
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