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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Thank you for interesting astk our services. We are a non-profit group that run this website to share documents. We need your help to maintenance this website. Please help us to share our service with your friends. Fabio Augusto Hincapie Henao Category: A number in paren parenthese thesess indicates the year of last reappr reapproval.
Sco Scope pe 4. Physical Requirements Requirements 1. It is not intended intended to imp imply ly tha thatt all three cla classe ssess are suitable suitable throughout throug hout this entire temperature temperature range withou withoutt regar regard d to actual service stresses.
Some are suitable for long service at the lower temperatures only, unless low stres stresses ses are involv involved. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Referenc Referenced ed Documents Documents 2. Manu Manufact facture ure 3.
ASTM A319 Grade II
Machinabilit Machinability y 5. 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 n th thee manufacturer and the purchaser. Chem Chemical ical Compositio Composition n 6. Carbon content equivalent 5 C 1 0.
ASTM A, A, A – Standards for Gray Iron Castings
It is recommended that embrittling impurities be held to the following maximum maximu m limits: Current edition approved March 1, Originally approved in Last previous edition approved in as A—71 When chromium is present as an alloying element, each class shall be subdivided into types designated as follows: No further reproductions authorized. The alloying elements, which, in addition to chromium, are commonly added to improve these properties, are copper, molybdenum, nickel, and vanadium.
Any combination of these alloying elements that assists in resisting oxidation or surface deterioration or in stabilizing the structure or retaining strength at elevated temperatures, may be used. Results of such analyses shall be in accordance with the limits agreed upon. The castings shall be free from injurious defects.
Surfaces of the castings shall be free from burnt-on sand and shall be reasonably smooth. In other respects the castings shall conform to whatever points may be specially agreed upon between the manufacturer and the purchaser.
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