What is ASTM A372?ASTM A372 is a Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels.
CategorySteel Billets and Forgings
ScopeThis specification covers relatively thin-walled forgings (including gas bottles) for pressure vessel use. Three types of carbon steel and six types of alloy steel are included.
Ok let's start with ASTM A372 chemical composition.
Si0.15 - 0.35
Learn more about chemical composition.
Now it's the mechanical properties turn:
Grade B45 ksi (310 MPa) min.
Learn more about what is yield strength.
Grade B75 - 100 (515 - 690 MPa)
Learn more about what is tensile strength.
Elongation (min.) 50 mm0.18.
Learn more about what is elongation.
Reduction of Area (min. %)Not Required.
Learn more about reduction of area.
Grade B156 HB min.
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 A372 currently ranks 59 in my yield strength index. This means there are other 58 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 A372 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 275/A 275M Test Method for Magnetic Particle Examination
of Steel Forgings
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 388/A 388M Practice for Ultrasonic Examination of
Heavy Steel Forgings
A 530/A 530M Specification for General Requirements
for Specialized Carbon and Alloy Steel Pipe
A 788 Specification for Steel Forgings, General Requirements
E 112 Test Methods for Determining the Average Grain
E 165 Practice for Liquid Penetrant Examination
E 290 Test Method for Semi-Guided Bend Test for Ductility
of Metallic Materials
E 433 Reference Photographs for Liquid Penetrant