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 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.
This standard is not included in any packages. Astn to Alert PDF. Chemical analysis shall be performed on each class of castings and shall meet the maximum requirement for carbon, phosphorus and sulfur.
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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This abstract is a brief summary of the referenced standard.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. A number in paren parenthese thesess indicates the year of last reappr reapproval.
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This guide covers standard specification for three classes of gray iron for castings intended for use as valve pressure retaining parts, pipe fittingsand flanges.
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As the voice of the U. Originally approved in The three classes of gray iron covered here are: We have no amendments or corrections for this standard. There were no books found for the applied search filters. 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.
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.
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Permission rights to photocopy the standard may also be secured from the ASTM website www. Some are suitable for long service at the lower temperatures only, unless low stres stresses ses are involv involved.
The alloying elements, which, in addition to chromium, are commonly added to improve these properties, are copper, molybdenum, nickel, asfm vanadium. This specification covers gray iron for castings suitable for pressure-containing asfm at elevated temperatures. Chemical analysis shall be performed in each lot and shall conform to the required chemical composition for phosphorous and sulfur.
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Fabio Augusto Hincapie Henao Category: Carbon content equivalent 5 C 1 0. 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 oxidation or surface deterioration or ast, stabilizing the structure or retaining strength at elevated temperatures, may be used.
The maximum hardness at the locations on castings that are to be mac machi hine a139 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.
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Thank you for interesting in our services. Class I, possessing superior 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 Atsm or II.
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Click here to download full list of books. We need your help to maintenance this website. Tension test shall be conducted on each class of gray iron castings and shall conform asrm the specified values of tensile strength.