ASTM A563 Properties (Chem., Mech. & Rankings) 2022

In this post I'll talk about and give details about ASTM A563. First let's describe it and then have a look at its material's properties.

What is ASTM A563?

ASTM A563 is a Specification for Carbon and Alloy Steel Nuts.


Steel Bolting Materials


This specification covers chemical and mechanical requirements for eight grades of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.

Ok let's start with ASTM A563 chemical composition.

Chemical Composition

Grade A

C max.


P max.


S max.


Learn more about chemical composition.

Now it's the mechanical properties turn:

Tensile Strength

Grade A (Square non coated)

90 ksi proof load stress

Learn more about what is tensile strength.

Hardness Requirements

Grade A (Square non coated)

116 - 302 HB

Learn more about what is hardness.

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 A563 currently ranks 158 in my yield strength index. This means there are other 157 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 Classroom

Are you having trouble understanding the basics of ASTM?

What is the difference between Code, Standard & Specification?

This video will walk you through:



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 A563 Properties (Chem., Mech. & Rankings). Materials Blog. 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 194/A 194M Specification for Carbon and Alloy Steel⁣
Nuts for Bolts for High Pressure or High Temperature⁣
Service, or Both⁣
A 242/A 242M Specification for High-Strength Low-⁣
Alloy Structural Steel⁣
A 307 Specification for Carbon Steel Bolts and Studs,⁣
60 000 psi Tensile Strength⁣
A 325 Specification for Structural Bolts, Steel, Heat⁣
Treated, 120/105 ksi Minimum Tensile Strength⁣
A 354 Specification for Quenched and Tempered Alloy⁣
Steel Bolts, Studs, and Other Externally Threaded Fasteners⁣
A 394 Specification for Steel Transmission Tower Bolts,⁣
Zinc-Coated and Bare⁣
A 449 Specification for Hex Cap Screws, Bolts and Studs,⁣
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile⁣
Strength, General Use⁣
A 490 Specification for Structural Bolts, Alloy Steel, Heat⁣
Treated, 150 ksi Minimum Tensile Strength⁣
A 588/A 588M Specification for High-Strength Low-⁣
Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum⁣
Yield Point, with Atmospheric Corrosion Resistance⁣
A 687 Specification for High-Strength Nonheaded Steel⁣
Bolts and Studs⁣
A 709/A 709M Specification for Structural Steel for⁣
A 751 Test⁣



Materials: ASTM A563 Properties (Chem., Mech. & Rankings) 2022
ASTM A563 Properties (Chem., Mech. & Rankings) 2022
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