ASTM B92/B92M-11
(Specification)Standard Specification for Unalloyed Magnesium Ingot and Stick For Remelting
Standard Specification for Unalloyed Magnesium Ingot and Stick For Remelting
ABSTRACT
This specification covers the standard for magnesium alloys in ingot and stick forms proposed for used in remelting. Magnesium 9980A alloys are available in ingot and stick form. Magnesium 9980B, 9990A, 9995A, and 9998A, on the other hand, are generally available in ingot form only. The specimens shall be produced with no slag and shall have a clean surface free from dirt, slag, or other foreign contaminants. Alloys shall adhere to specified chemical composition requirements. Any suitable chemical analysis method can be used unless otherwise prescribed.
SCOPE
1.1 This specification covers magnesium in the form of ingot and stick for remelting: 9980A is available in ingot and stick form, and 9980B, 9990A, 9995A, and 9998A are generally available only in ingot form.
1.2 The values stated in SI units are to be regarded as a separate standard. The values stated in each system are not exact equivalents, therefore each system must be used independently of the other.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B92/B92M −11
Standard Specification for
1
Unalloyed Magnesium Ingot and Stick For Remelting
This standard is issued under the fixed designation B92/B92M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 4.1.1 Grade (Section 6 and Table 1),
4.1.2 Quantity, in pieces or pounds [kilograms], and
1.1 This specification covers magnesium in the form of
4.1.3 Form; by agreement between the purchaser and the
ingot and stick for remelting: 9980A is available in ingot and
manufacturer the approximate form and weight of each piece
stick form, and 9980B, 9990A, 9995A, and 9998A are gener-
or ingot may be specified.
ally available only in ingot form.
4.1.4 For inch-pound orders specify B92, for metric orders
1.2 The values stated in SI units are to be regarded as a
specify B92M. Do not mix units.
separate standard. The values stated in each system are not
exact equivalents, therefore each system must be used inde-
5. Materials and Manufacture
pendently of the other.
5.1 No scrap shall be used in the production of magnesium
2. Referenced Documents
ingot and stick, except such as shall accumulate at the
2
manufacturer’splantsfrommaterialofsimilarcompositionand
2.1 ASTM Standards:
of his own manufacture.
B951 PracticeforCodificationofUnalloyedMagnesiumand
Magnesium-Alloys, Cast and Wrought
E29 Practice for Using Significant Digits in Test Data to 6. Chemical Composition
Determine Conformance with Specifications
6.1 Limits—The material shall conform to the requirements
E35 Test Methods for ChemicalAnalysis of Magnesium and
as to chemical composition prescribed in Table 1.
3
Magnesium Alloys (Withdrawn 2008)
6.2 Sampling:
E88 Practice for Sampling Nonferrous Metals and Alloys in
Cast Form for Determination of Chemical Composition
6.2.1 Sufficient samples shall be taken by the manufacturer
to assure conformance to the chemical composition require-
3. Terminology
ments of the alloy. Samples may be taken from the molten
metalwhentheingotispouredorfromtheingot.Samplesshall
3.1 Definitions:
be representative of the material.
3.1.1 ingot—a cast form suitable for remelting.
6.2.2 In case of dispute, the sampling for chemical analysis
3.1.2 stick—an extruded form substantially uniform in cross
shall be according to the requirements of Practice E88.Ifthe
section cut to desired length or weight.
ingots are shipped in carload lots of the same alloy, not less
than four ingots shall be taken at random from the carload for
4. Ordering Information
sampling. If the shipment is in less than carload lots, one ingot
4.1 Orders for ingot and stick under this specification shall
shall be taken for sampling for each 10 000 lb [4500 kg] or
include the following information:
fraction thereof.
6.3 Methods of Analysis—Any suitable method of chemical
1
This specification is under the jurisdiction of the ASTM Committee B07 on
analysis may be used. In case of dispute, the analysis shall be
Light Metals andAlloys and is the direct responsibility of Subcommittee B07.04 on
made by methods given in Test Methods E35, or any other
Magnesium Alloy Cast and Wrought Products.
standard methods of analysis approved by ASTM unless some
Current edition approved May 1, 2011. Published June 2011. Originally
approved in 1933. Last previous edition approved in 2007 as B92/B92M–07. DOI: other method is agreed upon by the purchaser and vendor.
10.1520/B0092_B0092M-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7. General Quality
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
7.1 Magnesium ingot and stick shall have a clean surface
the ASTM website.
3
and shall be commercially free from dirt, slag, or other foreign
The last approved version of this historical standard is referenced on
www.astm.org. material.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B92/B92M−11
TABLE 1 Chemical Requirements
NOTE 1—Analysis shall regularly be made only for the elements specifically mentioned in this table. If, however, the presence of other elements is
suspected or indicated in the course of routine analysis, further analysis shall be made to determine that the total of these other elements is not in excess
of the limits specified in the last column of the tabl
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B92/B92M–07 Designation: B92/B92M – 11
Standard Specification for
1
Unalloyed Magnesium Ingot and Stick For Remelting
This standard is issued under the fixed designation B92/B92M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification covers magnesium in the form of ingot and stick for remelting: 9980Ais available in ingot and stick form,
and 9980B, 9990A, 9995A, and 9998A are generally available only in ingot form.
1.2 The values stated in SI units are to be regarded as a separate standard. The values stated in each system are not exact
equivalents, therefore each system must be used independently of the other.
2. Referenced Documents
2
2.1 ASTM Standards:
B951 Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought
E35 Test Methods for Chemical Analysis of Magnesium and Magnesium Alloys
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
3. Terminology
3.1 Definitions:
3.1.1 ingot—a cast form suitable for remelting.
3.1.2 stick—an extruded form substantially uniform in cross section cut to desired length or weight.
4. Ordering Information
4.1 Orders for ingot and stick under this specification shall include the following information:
4.1.1 Grade (Section 6 and Table 1),
4.1.2 Quantity, in pieces or pounds [kilograms], and
4.1.3 Form; by agreement between the purchaser and the manufacturer the approximate form and weight of each piece or ingot
may be specified.
4.1.4 For inch-pound orders specify B92, for metric orders specify B92M. Do not mix units.
5. Materials and Manufacture
5.1 No scrap shall be used in the production of magnesium ingot and stick, except such as shall accumulate at the
manufacturer’s plants from material of similar composition and of his own manufacture.
6. Chemical Composition
6.1 Limits—The material shall conform to the requirements as to chemical composition prescribed in Table 1.
6.2 Sampling:
6.2.1 Sufficient samples shall be taken by the manufacturer to assure conformance to the chemical composition requirements
of the alloy. Samples may be taken from the molten metal when the ingot is poured or from the ingot. Samples shall be
representative of the material.
6.2.2 In case of dispute, the sampling for chemical analysis shall be according to the requirements of Practice E88. If the ingots
are shipped in carload lots of the same alloy, not less than four ingots shall be taken at random from the carload for sampling. If
the shipment is in less than carload lots, one ingot shall be taken for sampling for each 10 000 lb [4500 kg] or fraction thereof.
1
This specification is under the jurisdiction of the ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
Magnesium Alloy Cast and Wrought Products.
Current edition approved JuneMay 1, 2007.2011. Published June 2007.2011. Originally approved in 1933. Last previous edition approved in 20012007 as B92/B92M–017.
DOI: 10.1520/B0092_B0092M-0711.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B92/B92M – 11
TABLE 1 Chemical Requirements
NOTE 1—Analysis shall regularly be made only for the elements specifically mentioned in this table. If, however, the presence of other elements is
suspected or indicated in the course of routine analysis, further analysis shall be made to determine that the total of these other elements is not in excess
of the limits specified in the last column of the table.
NOTE 2—The following applies to all specified limits in this table: For purposes of acceptance and rejection, an observed value or a calculated value
obtained from analysis should be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit.
Designat
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.