ASTM A722 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022

In this post I'll talk about and give details about ASTM A722. First let's describe it and then have a look at its material's properties.

What is ASTM A722?

ASTM A722 is a Specification for Uncoated High-Strength Steel Bars for Prestressing Concrete

Category

Steel Bars

Scope

This specification covers uncoated high-strength steel bars intended for use in pretensioned and post-tensioned prestressed concrete construction or in prestressed ground anchors.

Ok let's start with ASTM A722 chemical composition.

Chemical Composition

P max.

0.040

S max.

0.050

Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

The minimum yield strength of Type I and Type II bars shall be 85 % and 80 %, respectively, of the minimum ultimate tensile strength of the bars

Learn more about what is yield strength.

Tensile Strength

Finished bars

1035 MPa (150 000 psi) min.

Learn more about what is tensile strength.

Allowable Stress

Depends on the project (And its factor of safety).

Learn more about the what is allowable stress.

My Material's Rank

While 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 A722 currently ranks 167 in my yield strength index. This means there are other 166 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.

Details and PDF

Instructions:

1. Go to this page.
2. Type the name of the standard you are looking for in the search box. Tip: Don't forget to include "ASTM" as a keyword.
3. Read the details about the standard or download the PDF.

ASTM Classroom

Are you having trouble understanding the basics of ASTM?

What is the difference between Code, Standard & Specification?

This video will walk you through:

References

Citation

When 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 A722 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 References

A 370 Test Methods and Definitions for Mechanical Testing⁣
of Steel Products2⁣
A 700 Practices for Packaging, Marking, and Loading⁣
Methods for Steel Products for Domestic Shipment3⁣
E 30 Test Methods for Chemical Analysis of Steel, Cast⁣
Iron, Open-Hearth Iron, and Wrought Iron⁣