ASTM A350 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022

In this post I'll talk about and give details about ASTM A350. First let's describe it and then have a look at its material's properties.

What is ASTM A350?

ASTM A350 is a Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components.

Category

Steel Billets and Forgings

Scope

This specification covers several grades of carbon and low-alloy steel forged or ring-rolled flanges, forged fittings and valves intended primarily for low-temperature service and requiring notch toughness testing.

Ok let's start with ASTM A350 chemical composition.

Chemical Composition

Grade LF2

C max.

0.30

Mn

0.60 - 1.35

P max.

0.035

S max.

0.040

Si max.

0.15 - 0.30

Ni max.

0.40

Cr max.

0.30

Mo max

0.12

Cu max.

0.40

Nb max.

0.02

V max.

0.08

Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade LF2

36 ksi (250 MPa) min

Learn more about what is yield strength.

Tensile Strength

Grade LF2

70 - 95 ksi (485 - 655 MPa)

Learn more about what is tensile strength.

Elongation (min.) 4D

0.22.

Learn more about what is elongation.

Reduction of Area (min. %)

0.3.

Learn more about reduction of area.

Hardness Requirements

Grade LF2

197 HB max.

Learn more about what is hardness.

Impact Requirements

Grade LF2 Class 1

20J avg and 16J min. At -46°C

Learn more about impact testing (charpy v notch).

Other properties:

Density

7800 - 8000 kg/m3 (around 7.9 g/cm3 or 0.285 lb/in3).

Learn more about density.

Elastic Modulus

190 GPa (27557 ksi) - 210GPa (30458 ksi).

Learn more about the Elastic Modulus.

Poisson's Ratio

0.27 – 0.30.

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 A350 currently ranks 82 in my yield strength index. This means there are other 81 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 A350 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 370 Test Methods and Definitions for Mechanical Testing⁣
of Steel Products⁣
A 788 Specification for Steel Forgings, General Requirements⁣
A 961 Specification for Common Requirements for Steel⁣
Flanges, Forged Fittings, Valves, and Parts for Piping⁣
Applications⁣

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 A350 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022
ASTM A350 Properties⚙️ (Chem., Mech. & Rankings) rev. 2022
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