What is ASTM A519?ASTM A519 is a Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
ScopeThis specification covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3⁄4 in. (323.8 mm) outside diameter.
Ok let's start with ASTM A519 chemical composition.
C0.38 - 0.43
Mn0.75 - 1.00
Si0.15 - 0.35
Cr0.80 - 1.10
Mo0.15 - 0.25
Learn more about chemical composition.
Now it's the mechanical properties turn:
Grade 414090 ksi (621 MPa) min. But non mandatory
Learn more about what is yield strength.
Grade 4140120 ksi (855 MPa) min. But non mandatory
Learn more about what is tensile strength.
Elongation (min.) 50 mm15% non mandatory.
Learn more about what is elongation.
Reduction of Area (min. %)Not Required.
Learn more about reduction of area.
Grade 4140100 HRB non mandatory
Learn more about what is hardness.
Density7800 - 8000 kg/m3 (around 7.9 g/cm3 or 0.285 lb/in3).
Learn more about density.
Elastic Modulus190 GPa (27557 ksi) - 210GPa (30458 ksi).
Learn more about the Elastic Modulus.
Poisson's Ratio0.27 – 0.30.
Learn more about the poisson ratio.
Allowable StressDepends on the project (And its factor of safety).
Learn more about the what is allowable stress.
My Material's RankWhile 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 ASTM A519 currently ranks 14 in my yield strength index. This means there are other 13 materials that are more resistant.
Note: I've analysed 134 materials in order to create an yield strength index. Check my astm material's comparison post for more details.
ASTM ClassroomAre you having trouble understanding the basics of ASTM?
What is the difference between Code, Standard & Specification?
This video will walk you through:
CitationWhen you need to include a fact or piece of information in an assignment or essay you should also include where and how you found that piece of information.
That gives credibility to your paper and it is sometimes required in higher education.
To make your life (and citation) easier just copy & paste the information below into your assignment or essay:
Luz, Gelson. ASTM A519 Properties (Chem., Mech. & Rankings). Materials Blog. Gelsonluz.com. dd mmmm. yyyy. <URL>
Now replace dd, mmmm and yyyy with the day, month, and year you browsed this page. Also replace URL for the actual url of this page (The < and > stay, ok?). This citation format is based on MLA.
Other ReferencesA 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
E 59 Practice for Sampling Steel and Iron for Determination
of Chemical Composition