ASTM A990 PDF

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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Since these grades possess varying degrees of suitability for service in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. 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. Fusion discontinuities, expansion discontinuities, and inserts are unacceptable.

The values stated in each system may not be exact equivalents; therefore, each system shall be used aatm of the other. All surfaces to be welded and at least 1 in. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Selection will depend on design and sstm conditions, mechanical proper- ties, and corrosion-resistant characteristics. A number in parentheses indicates the year of last reapproval.

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Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

If the casting grade does not require heat treatment, the bar used for the test specimen shall not be heat treated. Nondestructive examination requirements such as casting thickness shall be evaluated by visual, radiographic, and liquid penetrant inspection.

Norma ASTM A/AM

Class D will be supplied unless otherwise specified. Combining values from the two systems may result in nonconformance with the standard. Historical Atsm s – view previous versions of standard. A number in parentheses indicates the year of last reapproval.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

ASTM A990/A990M – 18

Castings shall be repair welded and solution heat treated prior to final cleaning by blasting, and shall not be peened, plugged, or impregnated. This standard is also available to be included in Standards Subscriptions.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. E Reference Radiographs for Heavy-Walled to in. 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.

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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.

Originally approved in E 94 Guide for Radiographic Testing4 1. We have no amendments or corrections for this standard. The values stated in each Acceptance Standards, Magnetic Particle and Liquid Pen- system are not exact equivalents; therefore, each system must etrant Inspection2 be used independently of awtm other. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Referenced Documents asttm in.

A — AWS A5. Tensile Properties purchase order. Part1 Financial Planning, Performance, and Control.

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Combining values from the two systems may result in nonconformance with this specifi- cation. Materials adtm conform to specified chemical composition and tensile property requirements, and weldability qualifications.

Such requirements may include, but are not limited to, the following: Within the text, the SI units qstm shown in brackets or parentheses. A superscript epsilon e indicates an editorial change since the last revision or reapproval.