ASTM A991 PDF

ASTM A – Designation: A /A M – 98 (Reapproved ) Standard Test Method for Conducti. Purchase your copy of ASTM A/AM – 17 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. This standard is issued under the fixed designation A/AM; the number This test method is under the jurisdiction of ASTM Committee A01 on Steel, 2.

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Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method.

Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are de? AMS Pyrometry3 3. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are awtm provided as part of the standard.

This method is used to determine the capability of the furnace to meet the permissible temperature variation speci?

ASTM International – Standard References for ASTM A / AM – 17

Documentation of Survey Results 8. Link to Active This link will always route to the current Active version of the standard. Interpretation of Results and Establishment of the Working Zone 9. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Details of this procedure shall be as agreed to between purchaser and supplier. A number in parentheses indicates the year of last reapproval. The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon by the purchaser and supplier. Originally approved in For proposed working zones greater than, or equal to, 12 in. The acceptance of any aatm additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon by the purchaser and supplier.

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

Use of representative material to simulate product during survey is permitted. Starting time aztm chart speed shall be marked on the original temperature charts, 8.

Place them at the outer extremities, the center of the proposed working zone, and in areas of suspected variability in the proposed working zone. It provides validation of temperature uniformity by a series of tests rather than a single test. Historical Version s – view previous versions of standard. If you feel that your comments have not received a fair hearing you should make your views ashm to the ASTM Committee on Standards, at the address shown below.

Combining values from the two systems may result in non-conformance with the standard. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Regardless of heat treat furnace asttm, or processing cycle, it may be necessary for users to know a99 temperature uniformity in the furnace and whether the material is processed in a zone within the furnace that is capable of meeting the applicable permissible temperature variation requirements.

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.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Furnace Survey Equipment 5. In each test, determine the temperature variation pattern at one or more of the test locations.

This method is used to determine the capability of the furnace to meet the permissible temperature variation specified in the applicable product specification, or as agreed to by the purchaser and supplier of heat treat services. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

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The rate of conveyance shall be representative of normal operating conditions. Current edition approved Oct. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Attach survey test sensors to, or set them in the load. Heat Treatment in the Working Zone The working zone may be comprised of one or more heating zones in the furnace.

ASTM A991/A991M – 17

Regardless of heat treat furnace satm, or processing cycle, it may be necessary for users to know the temperature uniformity in the furnace and whether the asstm is processed in a zone within the furnace that is capable of meeting the applicable permissible temperature variation requirements. Your comments are asfm either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

All other conditions described in 6. 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. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining values in any way.

Calibration to such national standards shall be done at least once every two years. Within the text, the SI units are shown in brackets. A major q991 modi? Results of the application of this test method shall be expressed as a variation from a temperature set point. Examples of these surveying techniques are listed below.