ASTM A270 Properties (Chem., Mech. & Rankings) rev. 2022

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 aboutĀ chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade TP 316L

25 ksi (170 MPa) min. Non mandatory

Learn more aboutĀ what is yield strength.

Tensile Strength

Grade TP 316L

70 ksi (485 MPa) min. Non mandatory

Learn more aboutĀ what is tensile strength.

Hardness Requirements

Grade TP 316L

90 HRB max.

Learn more aboutĀ what is hardness.

Density

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

Learn more aboutĀ density.

Elastic Modulus

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

Learn more about theĀ Elastic Modulus.

Poisson's Ratio

Usually around 0.26 ā€“ 0.31.

Learn more about theĀ poisson ratio.

Allowable Stress

Depends on the project (And its factor of safety).

Learn more about theĀ 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 132Ā 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.

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 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 Intergranularā£
Attack in Austenitic Stainless Steelsā£
A 480/A 480M Specification for General Requirements forā£
Flat-Rolled Stainless and Heat-Resisting Steel Plate,ā£
Sheet, and Stripā£
A 923 Test Methods for Detecting Detrimental Intermetallicā£
Phase in Wrought Duplex Austenitic/Ferritic Stainlessā£
Steelsā£
A 967 Specification for Chemical Passivation Treatmentsā£
for Stainless Steel Partsā£
A 1016/A 1016M Specification for General Requirementsā£
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainlessā£
Steel Tubesā£
E 527 Practice for Numbering Metals and Alloys (UNS)ā£

COMMENTS

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10XX,52,11XX,17,12XX,7,13XX,4,15XX,16,3XXX,2,40XX,10,41XX,12,43XX,5,44XX,4,46XX,5,47XX,3,48XX,3,5XXX,23,6XXX,3,71XX,1,8XXX,22,92XX,5,93XX,1,94XX,4,98XX,2,AISI,66,ASTM,172,Atomic-Mass,327,Atomic-Number,436,Atomic-Radius,86,Atomic-Symbol,329,Atomic-Volume,94,Austenitic,56,Boiling-Point,94,bp1,97,CBS,6,Chemical-Elements,100,Chemical-Symbol,217,CMDS,13,Coefficient-of-Thermal-Expansion,85,Covalent-Radius,87,Crystal-Structure,109,CS,17,CVS,3,Density,297,Duplex,6,el1,100,Elastic-Modulus,30,Electrical-Conductivity,79,Electro-Affinity,87,Electron-Configuration,109,Electronegativity,102,Electrons-per-Shell,111,Enthalpy-of-Fusion,93,Enthalpy-of-Vaporization,95,Ferritic,12,fp1,38,fs1,45,Group-Number,218,HCS,14,Heat-of-Fusion,87,Heat-of-Vaporization,85,HMCS,16,Ionic-Radius,78,Ionization-Energy,102,Ionization-Potential,101,l1,438,LCS,21,List,281,lp1,69,Martensitic,6,MCS,17,MDS,14,Melting-Point,96,mm1,2,mp1,99,MS,4,NCMDBS,6,NCMDS,31,NCS,2,NMDS,8,Oxidation-States,104,p1,44,Period-Number,107,pr1,53,Properties,40,RCLS,1,RCS,16,ref1,5,RRCLS,3,RRCS,4,SAE,201,Site,2,SMS,5,Specific-Gravity,83,Specific-Heat,92,Specific-Weight,1,SS,80,Tests,2,Thermal-Conductivity,105,tm1,274,Valence-Electrons,98,wt1,26,
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Materials: ASTM A270 Properties (Chem., Mech. & Rankings) rev. 2022
ASTM A270 Properties (Chem., Mech. & Rankings) rev. 2022
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