ASTM A479 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022

In this post I'll talk about and give details about ASTM A479. First let's describe it and then have a look at its material's properties.

What is ASTM A479?

ASTM A479 is a Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels.

Category

Corrosion-Resisting and Heat-Resisting Steels

Scope

This specification covers hot and cold-finished bars of stainless steel, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels for use in boiler and pressure vessel construction.

Ok let's start with ASTM A479 chemical composition.

Chemical Composition

Type 316

C max.

0.08

Mn max.

2.00

P max.

0.045

S max.

0.30

Si max.

1.00

Cr

16.0 - 18.0

Ni

10.0 - 14.0

Mo

2.00 - 3.00

Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Type 316

65 ksi (450 MPa) min.

Learn more about what is yield strength.

Tensile Strength

Type 316

85 ksi (585 MPa) min.

Learn more about what is tensile strength.

Elongation (min.) 50 mm

0.3.

Learn more about what is elongation.

Reduction of Area (min. %)

0.6.

Learn more about reduction of area.

Density

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 A479 currently ranks 30 in my yield strength index. This means there are other 29 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 A479 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

A262 Practices for Detecting Susceptibility to Intergranular⁣
Attack in Austenitic Stainless Steels⁣
A370 Test Methods and Definitions for Mechanical Testing⁣
of Steel Products⁣
A484/A484M Specification for General Requirements for⁣
Stainless Steel Bars, Billets, and Forgings⁣
A751 Test Methods, Practices, and Terminology for Chemical⁣
Analysis of Steel Products⁣
E112 Test Methods for Determining Average Grain Size⁣
E527 Practice for Numbering Metals and Alloys in the⁣
Unified Numbering System (UNS)⁣