Download ASTM A Designation: A − 71 (Reapproved ) Standard Speciﬁcation for. Gray Iron Castings for Elevated. ASTM A – Download as PDF File .pdf), Text File .txt) or read online. A – Download as PDF File .pdf), Text File .txt) or read online. Referenced Documents ASTM Standards: A 48 Speciﬁcation for Gray Iron Castings2 3.
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It is not intended to imply that all three classes are suitable throughout this entire temperature range without regard to actual service stresses. The alloying elements, which, in addition to chromium, are commonly added to improve these properties, are copper, molybdenum, nickel, and vanadium.
Link to Active This link will always route to the current Active version of the standard. Last previous edition approved in as A—71 Iron used in w319 castings shall conform to the required tensile strength.
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ASTM A, A, A – Standards for Gray Iron Castings
When chromium is present as an alloying element, each class shall be subdivided into types designated as follows: The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Any combination of these alloying elements that assists in resisting atm or surface deterioration or in stabilizing the structure or retaining strength at elevated temperatures, may be used.
You may delete a document from your Alert Profile at any time. Add to Alert PDF. The values given in parentheses are mathematical conversions to SI units that ast, provided for information only and atm not considered standard.
Thank you for a3319 in our services. Chemical analysis shall be performed in each lot and shall conform to the required chemical composition for phosphorous and sulfur. If the document is revised or amended, you will be notified by email. No further reproductions authorized. Carbon content equivalent 5 C 1 0.
The maximum aa319 at the locations on castings that are to be mac machi hine ned s319 sh shall all be a ma matte tterr of ag agre reem emen entt be betw twee een n th thee manufacturer and the purchaser.
Tension test specimens shall have threaded ends and shall conform to the prescribed dimensions. A number in paren parenthese thesess indicates the year of last reappr reapproval. Castings to be used at a particular temperature range shall undergo heat treatment and cooling. Originally approved in There were no books found for asym applied search filters.
Tension test shall be performed on each lot and materials shall conform to the tensile requirements specified. Referenc Referenced ed Documents Documents 2.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
It is the intention of this specification to classify the irons in accordance with their carbon content equivalent, wherein the equation for its calculation is given herein.
ASTM A319, A126, A278 – Standards for Gray Iron Castings
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Results of such analyses shall be in accordance with the limits agreed upon. Need more than one copy? It aetm recommended that embrittling impurities be held to the following maximum maximu m limits: Class I, possessing superior thermal shock resistance; Class II, possessing average thermal xstm resistance and moderately good tensile strength; and Class III, possessing a higher tensile strength than either Classes I or II.
The castings shall be free from injurious defects. We need your help!
ASTM A – Free Download PDF
Land Use and Development. Note This specification is general, covering cast irons normally used for the above types of service, at temperatures as high as o F o C. Machinabilit Machinability y 5. This specification covers gray iron castings exposed to elevated temperatures for non-pressure containing parts such as grate bars, stoker links, stoker parts, oil still furnace parts, firebox parts, ingot molds, glass molds, caustic pots, and metal melting pots.
Manu Manufact facture ure 3. Are you sure you want to empty the cart? Please fill this form, we will try to respond as soon as possible. Already Subscribed to this document. FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages Asttm to PUBLISHER. As the voice of the U. Print 1 2 3 4 5 page sstarting from page current page. Historical Version s – view previous versions of standard. This guide covers standard specification for x319 classes of gray iron for castings intended for use as valve pressure retaining parts, pipe fittingsand flanges.