ASTM A556 Properties (Chem., Mech. & Rankings)

In this post I'll talk about and give details about ASTM A556. First let's describe it and then have a look at its material's properties.

What is ASTM A556?

ASTM A556 is a Specification for Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes.

Category

Steel Tubes

Scope

This specification covers minimum-wall-thickness, seamless cold-drawn carbon steel tubes including bending into the form of U-tubes, if specified, for use in tubular feedwater heaters.

Ok let's start with ASTM A556 chemical composition.

Chemical Composition

Grade A

C max.

0.18

Mn

0.27 - 0.63

P max.

0.035

S max.

0.035

Learn more about chemical composition.

Now it's the mechanical properties turn:

Yield Strength

Grade A2

26 ksi (180 MPa) min.

Learn more about what is yield strength.

Tensile Strength

Grade A2

47 ksi (320 MPa) min.

Learn more about what is tensile strength.

Elongation (min.) 50 mm

0.35.

Learn more about what is elongation.

Reduction of Area (min. %)

Not Required.

Learn more about reduction of area.

Hardness Requirements

Grade A2

72 HRB max

Learn more about what is hardness.

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 A556 currently ranks 131 in my yield strength index. This means there are other 130 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 A556 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 450/A 450M Specification for General Requirements for⁣
Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes⁣
E 30 Test Methods for Chemical Analysis of Steel, Cast⁣
Iron, Open-Hearth Iron, and Wrought Iron⁣

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 A556 Properties (Chem., Mech. & Rankings)
ASTM A556 Properties (Chem., Mech. & Rankings)
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