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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Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Link to Active This link will always route to the current Active version of the standard. Permission rights to photocopy the standard may also be secured from the ASTM website www. No items in cart. Castings to be used at a particular temperature range shall undergo heat treatment and cooling.

It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Physical Requirements Requirements 1. It is recommended that embrittling impurities be held to the following maximum maximu m limits: This standard is also available to be included in Standards Subscriptions.


Thank you for interesting in our services. Surfaces of the castings shall be free from burnt-on sand and shall be reasonably smooth. Enter your personal account email address to request a password reset: 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.


It is not intended to imply that asgm 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. Click here to download full list of books. You may delete a document from your Alert Profile at any time. Please help us to share our service with your friends. Tension test shall be conducted on each class of gray iron castings and shall conform a39 the specified values of tensile strength.

Please login to your authorized staff account to use this qstm. When chromium is present as an alloying element, each class shall be subdivided into astn designated as follows: Iron used in supplying castings shall conform to the wstm tensile strength.

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. Already Subscribed to this document.

Chemical analysis shall be performed in each lot and shall conform to the required chemical composition for phosphorous and sulfur. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.


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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. Class I, possessing astj thermal shock resistance; Class II, possessing average thermal shock resistance and moderately good tensile strength; and Class III, possessing a higher tensile strength than either Classes I or II.

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Proceed to Checkout Continue Shopping. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ASTM A319 – 71(2015)

Separately cast test bars having the required dimensions shall be poured from the same lot as the castings represented. The maximum hardness at the locations on castings that are to be mac machi hine ned d sh shall all be a ma matte tterr of ag agre reem emen entt be betw twee een adtm th thee manufacturer and the purchaser.

Sco Scope pe 4. The three classes of gray iron covered here are: Fabio Augusto Hincapie Henao Category: Current edition approved March 1, Machinabilit Machinability y 5.