Find the most up-to-date version of ASTM A at Engineering Find the most up-to-date version of ASTM A/AM at Engineering ASTM A Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive

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Workmanship, Finish, and Appearance This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Within the text, the SI units are shown in brackets or parentheses.

Initial excavation of defects may be accomplished by any method including air-arc gouging, grinding, or machining; however, all visible traces of ast, air-arc process shall be removed w990 grinding or machining.


Repair by Welding 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. Referenced Documents 4 in. Reference Radiographs for Heavy-Walled to in. Class D will be supplied unless otherwise speci?

The bar shall be solution heat treated per the requirements of Table 4 in production furnaces to the same procedure as the castings it represents. The cleaning may be accomplished by grinding or by machining followed by solvent washing. All surfaces to be welded and at least 1 in. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

This specification covers iron-nickel-chromium and nickel alloy castings specially processed with restricted melt practices, weldability testing, and nondestructive examination NDE requirements for use in pressure retaining parts with corrosive service environments. Tensile Properties purchase order.


Castings shall be repair welded and solution heat treated prior to final cleaning by blasting, and shall not be peened, plugged, or impregnated. Each class imposes speci?

We have no amendments or corrections for this standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Link to Active This link will always route to the current Active version of the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Originally approved in Selection will depend on design and service conditions, mechanical properties, and corrosion-resistant characteristics. Only sstm filler material grades specified in Table 5 shall be used. A superscript epsilon indicates an editorial change since the last revision or reapproval. Last previous edition approved in as A — Active view current version of standard.

ASTM A990/A990M – 18

A M As-cast A Quench in water or rapid cool by other means as agreed upon by the manufacturer a90 purchaser. The distinguishing require- ments of this specification are as follows. Add to Alert PDF. A number in parentheses indicates the year of last reapproval. All forms of cold working, mechanical deformation, hammering or peening, in excess of that required for normal cleaning is prohibited. The distinguishing requirements of this speci?

Your comments are invited either for asrm of this standard or for additional standards and should be addressed to ASTM International Headquarters. Such requirements may include, but are not 9. E 94 Guide for Radiographic Testing4 1. As the voice of the U.

Process and Manufacture 6. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.


Requirements, for Pressure-Containing Parts2 1. Process and Manufacture nitions A and Terminology A are applicable to this 6. If the second casting aztm, then no additional radiography beyond the normal amount is required.

If the casting grade does not require heat treatment, the bar used for the test specimen shall not be heat treated. Dimensional tolerances should be included on the casting drawing. Failure to comply with the general requirements of Speci? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? The choice of manufacturing procedure x990 be used for producing the alloy castings shall be according to specified metallic contents.

Final cleaning shall be accomplished by blasting with clean nonmetallic media not previously used on steel or iron parts, pickling, machining, or other approved methods approved by the purchaser.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any wstm mentioned in this astk. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Reference Radiographs for Heavy-Walled 2 to in. An analysis of every heat 4.

Materials shall conform to specified chemical composition and tensile property requirements, and weldability qualifications.