ASTM A217 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022

In this post I'll talk about and give details about ASTM A217. First let's describe it and then have a look at its material's properties.

What is ASTM A217?

ASTM A217 is a Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service.


Corrosion-Resisting and Heat-Resisting Steels


This specification covers martensitic stainless steel and alloy steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature and corrosive service.

Ok let's start with ASTM A217 chemical composition.

Chemical Composition

Grade WC6


0.05 - 020


0.50 - 0.80

P max.


S max.


Si max.



1.00 - 1.50


0.45 - 0.65

Cu max.


Ni max.


W max.


Others max.


Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade WC6

40 ksi (275 MPa) min

Learn more about what is yield strength.

Tensile Strength

Grade WC6

70 to 95 ksi (485 to 655 MPa)

Learn more about what is tensile strength.

Elongation (min.) 50 mm


Learn more about what is elongation.

Reduction of Area (min. %)


Learn more about reduction of area.


7480 - 8000 kg/m3 (around 7.9 g/cm3 or 0.285 lb/in3).

Learn more about density.

Elastic Modulus

180 GPa (26107 ksi) - 210GPa (30458 ksi).

Learn more about the Elastic Modulus.

Poisson's Ratio

Usually around 0.26 – 0.31.

Learn more about the poisson ratio.

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 A217 currently ranks 69 in my yield strength index. This means there are other 68 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


  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:



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 A217 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 352/A 352M Specification for Steel Castings, Ferritic⁣
and Martensitic, for Pressure-Containing Parts, Suitable⁣
for Low-Temperature Service⁣
A 487/A 487M Specification for Steel Castings Suitable⁣
for Pressure Service⁣
A 488/A 488M Practice for Steel Castings, Welding, Qualifications⁣
of Procedures and Personnel⁣
A 703/A 703M Specification for Steel Castings, General⁣
Requirements, for Pressure-Containing Parts⁣
A 802 /A 802M Practice for Steel Castings, Surface⁣
Acceptance Standards, Visual Examination⁣
A 985/A 985M Specification for Steel Investment Castings⁣
General Requirements, for Pressure-Containing⁣
E 165 Test Method for Liquid Penetrant Examination⁣
E 709 Guide for Magnetic Particle Examination⁣



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Materials: ASTM A217 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022
ASTM A217 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022
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