In this post I'll talk about and give details about ASTM A789. First let's describe it and then have a look at its material's properties.
Ok let's start with ASTM A789 chemical composition.
Learn more about chemical composition.
Now it's the mechanical properties turn:
Learn more about what is yield strength.
Learn more about what is tensile strength.
Learn more about what is elongation.
Learn more about reduction of area.
Learn more about what is hardness.
Learn more about density.
Learn more about the Elastic Modulus.
Learn more about the poisson ratio.
Learn more about the what is allowable stress.
I ranked materials according to their yield strengths and ASTM A789 currently ranks 32 in my yield strength index. This means there are other 31 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.
What is the difference between Code, Standard & Specification?
This video will walk you through:
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 A789 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.
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
Sheet, and Strip
A1016/A1016M Specification for General Requirements for
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
Steel Tubes
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
What is ASTM A789?
ASTM A789 is a Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service.Category
Corrosion-Resisting and Heat-Resisting SteelsScope
This specification covers grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.Ok let's start with ASTM A789 chemical composition.
Chemical Composition
Grade UNS S31803
C max.
0.030Mn max.
2.00P max.
0.030S max.
0.020Si max.
1.00Ni
4.5 - 6.5Cr
21.0 - 23.0Mo
2.5 - 3.5N
0.08 - 0.20Learn more about chemical composition.
Now it's the mechanical properties turn:
Yield Strength
Grade UNS S31803
65 ksi (450 MPa) min.Learn more about what is yield strength.
Tensile Strength
Grade UNS S31803
90 ksi (620 MPa) min.Learn more about what is tensile strength.
Elongation (min.) 50 mm
0.25.Learn more about what is elongation.
Reduction of Area (min. %)
Not Required.Learn more about reduction of area.
Hardness Requirements
Grade UNS S31803
290 HBW or 30 HRC 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 A789 currently ranks 32 in my yield strength index. This means there are other 31 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:
- Go to this page.
- Type the name of the standard you are looking for in the search box. Tip: Don't forget to include "ASTM" as a keyword.
- 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 A789 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
A480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,
Sheet, and Strip
A1016/A1016M Specification for General Requirements for
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
Steel Tubes
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
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