What is ASTM A217?ASTM A217 is a Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service.
CategoryCorrosion-Resisting and Heat-Resisting Steels
ScopeThis specification covers martensitic stainless steel and alloy steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature and corrosive service.
Ok let's start with ASTM A217 chemical composition.
C0.05 - 020
Mn0.50 - 0.80
Cr1.00 - 1.50
Mo0.45 - 0.65
Learn more about chemical composition.
Now it's the mechanical properties turn:
Grade WC640 ksi (275 MPa) min
Learn more about what is yield strength.
Grade WC670 to 95 ksi (485 to 655 MPa)
Learn more about what is tensile strength.
Elongation (min.) 50 mm0.2.
Learn more about what is elongation.
Reduction of Area (min. %)0.35.
Learn more about reduction of area.
Density7480 - 8000 kg/m3 (around 7.9 g/cm3 or 0.285 lb/in3).
Learn more about density.
Elastic Modulus180 GPa (26107 ksi) - 210GPa (30458 ksi).
Learn more about the Elastic Modulus.
Poisson's RatioUsually around 0.26 – 0.31.
Learn more about the poisson ratio.
Allowable StressDepends on the project (And its factor of safety).
Learn more about the what is allowable stress.
My Material's RankWhile 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 A217 currently ranks 69 in my yield strength index. This means there are other 68 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 ClassroomAre you having trouble understanding the basics of ASTM?
What is the difference between Code, Standard & Specification?
This video will walk you through:
CitationWhen 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 A217 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 ReferencesA 216/A 216M Specification for Steel Castings, Carbon,
Suitable for Fusion Welding, for High-Temperature
A 352/A 352M Specification for Steel Castings, Ferritic
and Martensitic, for Pressure-Containing Parts, Suitable
for Low-Temperature Service
A 487/A 487M Specification for Steel Castings Suitable
for Pressure Service
A 488/A 488M Practice for Steel Castings, Welding, Qualifications
of Procedures and Personnel
A 703/A 703M Specification for Steel Castings, General
Requirements, for Pressure-Containing Parts
A 802 /A 802M Practice for Steel Castings, Surface
Acceptance Standards, Visual Examination
A 985/A 985M Specification for Steel Investment Castings
General Requirements, for Pressure-Containing
E 165 Test Method for Liquid Penetrant Examination
E 709 Guide for Magnetic Particle Examination