ASTM A351 Properties (Chem., Mech. & Rankings) 2022

In this post I'll talk about and give details about ASTM A351. First let's describe it and then have a look at its material's properties.

What is ASTM A351?

ASTM A351 is a Specification for Castings, Austenitic, Austenitic-Ferritic (Duplex), for Pressure- Containing Parts.


Corrosion-Resisting and Heat-Resisting Steels


This specification covers austenitic and austenitic ferritic (duplex) steel castings for valves, flanges, fittings, and other pressure-containing parts.

Ok let's start with ASTM A351 chemical composition.

Chemical Composition

Grade CF8

C max.


Mn max.


Si max.


S max.


P max.



18.0 - 21.0


8.0 - 11.0

Mo max


Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade CF8

30 ksi (205 MPa) min

Learn more about what is yield strength.

Tensile Strength

Grade CF8

70 ksi (485 MPa) min.

Learn more about what is tensile strength.

Elongation (min.) 50 mm


Learn more about what is elongation.

Reduction of Area (min. %)

Not Required.

Learn more about reduction of area.

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 A351 currently ranks 117 in my yield strength index. This means there are other 116 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 A351 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 216/A 216M Specification for Steel Castings, Carbon,⁣
Suitable for Fusion Welding, for High-Temperature⁣
A 217/A 217M Specification for Steel Castings, Martensitic⁣
Stainless and Alloy, for Pressure-Containing Parts,⁣
Suitable for High-Temperature Service⁣
A488/A 488M Practice for Steel Castings, Welding, Qualification⁣
of Procedures and Personnel⁣
A 703/A 703M Specification for Steel Castings, General⁣
Requirements, for Pressure-Containing Parts⁣
E 165 Test Method for Liquid Penetrant Examination⁣
E 709 Guide for Magnetic Particle Examination⁣



Materials: ASTM A351 Properties (Chem., Mech. & Rankings) 2022
ASTM A351 Properties (Chem., Mech. & Rankings) 2022
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content