ASTM A541 Properties (Chem., Mech. & Rankings)

In this post I'll talk about and give details about ASTM A541. First let's describe it and then have a look at its material's properties.

What is ASTM A541?

ASTM A541 is a Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components.

Category

Steel Billets and Forgings

Scope

This specification covers requirements for quenched and tempered carbon and alloy steel forgings for pressure vessel components.

Ok let's start with ASTM A541 chemical composition.

Chemical Composition

Grade 22 Class 4 and 5

C

0.05 - 0.15

Mn

0.30 - 0.60

P max.

0.025

S max.

0.025

Si max.

0.50

Ni max.

0.50

Cr

2.00 - 2.50

Mo

0.90 - 1.10

V max.

0.05

Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade 22 Class 4

85 ksi (585 MPa) min.

Learn more about what is yield strength.

Tensile Strength

Grade 22 Class 4

105 - 130 ksi (725 - 895 MPa)

Learn more about what is tensile strength.

Elongation (min.) 50 mm

0.16.

Learn more about what is elongation.

Reduction of Area (min. %)

0.45.

Learn more about reduction of area.

Impact Requirements

Grade 22 Class 4

47J avg. 41J min. at -4°C (Non mandatory)

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 A541 currently ranks 18 in my yield strength index. This means there are other 17 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 A541 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 275/A 275M Test Method for Magnetic Particle Examination⁣
of Steel Forgings⁣
A 370 Test Methods and Definitions for Mechanical Testing⁣
of Steel Products⁣
A 388/A 388M Practice for Ultrasonic Examination of⁣
Heavy Steel Forgings⁣
A 788 Specification for Steel Forgings, General Requirements⁣
E 208 Test Method for Conducting Drop-Weight Test to⁣
Determine Nil-Ductility Transition Temperature of Ferritic⁣
Steels⁣

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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