ASTM A270 Properties (Chem., Mech. & Rankings)

In this post I'll talk about and give details about ASTM A270. First let's describe it and then have a look at its material's properties.

What is ASTM A270?

ASTM A270 is a Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing

Category

Sanitary Tubing

Scope

This specification covers grades of seamless, welded, and heavily cold worked welded austenitic and ferritic/ austenitic stainless steel sanitary tubing intended for use in the dairy and food industry and having special surface finishes. Pharmaceutical quality may be requested, as a supplementary requirement.

Ok let's start with ASTM A270 chemical composition.

Chemical Composition

Grade TP 316L

C max.

0.08

Mn max.

2.00

P max.

0.045

S max.

0.030

Si max.

1.00

Ni

10.0 - 14.0

Cr

16.0 - 18.0

Mo

2.00 - 3.00

Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade TP 316L

25 ksi (170 MPa) min. Non mandatory

Learn more about what is yield strength.

Tensile Strength

Grade TP 316L

70 ksi (485 MPa) min. Non mandatory

Learn more about what is tensile strength.

Hardness Requirements

Grade TP 316L

90 HRB max.

Learn more about what is hardness.

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 A270 currently ranks 132 in my yield strength index. This means there are other 131 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:

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 A270 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 262 Practices for Detecting Susceptibility to Intergranular⁣
Attack in Austenitic Stainless Steels⁣
A 480/A 480M Specification for General Requirements for⁣
Flat-Rolled Stainless and Heat-Resisting Steel Plate,⁣
Sheet, and Strip⁣
A 923 Test Methods for Detecting Detrimental Intermetallic⁣
Phase in Wrought Duplex Austenitic/Ferritic Stainless⁣
Steels⁣
A 967 Specification for Chemical Passivation Treatments⁣
for Stainless Steel Parts⁣
A 1016/A 1016M Specification for General Requirements⁣
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless⁣
Steel Tubes⁣
E 527 Practice for Numbering Metals and Alloys (UNS)⁣

COMMENTS

Who is Gelson Luz anyway?


Gelson Luz is a Mechanical Engineer, expert in welding and passionate about materials. Search for "Gelson Luz" in your favorite browser to learn more.
Name

ASTM,171,Atomic-Mass,327,Atomic-Number,436,Atomic-Radius,86,Atomic-Symbol,329,Atomic-Volume,94,Boiling-Point,94,Chemical-Elements,100,Chemical-Symbol,217,Coefficient-of-Thermal-Expansion,85,Covalent-Radius,87,Crystal-Structure,109,Density,309,Elastic-Modulus,30,Electrical-Conductivity,79,Electro-Affinity,87,Electron-Configuration,109,Electronegativity,102,Electrons-per-Shell,112,Enthalpy-of-Fusion,93,Enthalpy-of-Vaporization,95,Group-Number,218,Heat-of-Fusion,87,Heat-of-Vaporization,85,Ionic-Radius,78,Ionization-Energy,102,Ionization-Potential,101,Melting-Point,96,Oxidation-States,104,Period-Number,107,Properties,38,Specific-Gravity,83,Specific-Heat,92,Specific-Weight,1,Tests,2,Thermal-Conductivity,105,Valence-Electrons,98,
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Materials: ASTM A270 Properties (Chem., Mech. & Rankings)
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