Designation:B93/B93M–09
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Standard Specification for
Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings,and Die Castings1
This standard is issued under thefixed designation B93/B93M;the number immediately following the designation indicates the year of original adoption or,in the ca of revision,the year of last revision.A number in parenthes 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 u by agencies of the Department of Defen.
Note—Table1was corrected editorially and the year date changed on Dec.7,2009.
1.Scope
1.1This specification covers magnesium alloys in ingot form for remelting for the manufacture of sand castings, permanent mold castings,investment castings,and die cast-ings.
N OTE1—Supplementary information pertaining to the alloys covered by this specification when ud in the form of castings is given in Specifications B80,B94,B199and B403.
1.2The values stated in either inch-pound units or SI units are to be regarded parately as standard.The values stated in each system are not exact equivalents;therefore,each system shall be ud independently of the other.
1.3This standard does not purport to address all of the safety concerns,if any,associated with its u.It is the responsibility of the ur of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to u.
2.Referenced Documents
2.1The following documents of the issue in effect on date of order acceptance form a part of this specification to the extent referenced herein:
2.2ASTM Standards:2
B80Specification for Magnesium-Alloy Sand Castings
B94Specification for Magnesium-Alloy Die Castings
B199Specification for Magnesium-Alloy Permanent Mold Castings
B403Specification for Magnesium-Alloy Investment Cast-ings
B951Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys,Cast and Wrought
E29Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E35Test Methods for Chemical Analysis of Magnesium and Magnesium Alloys3
E88Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition E527Practice for Numbering Metals and Alloys in the Unified Numbering System(UNS)
3.Ordering Information
3.1Orders for ingot to this specification shall include the following information:
3.1.1Quantity in pounds(kilograms)
3.1.2Alloy(Section4and Table1or Table2),and
3.1.3Form:as agreed upon between the purchar and ller.Some forms in commercial u are:
Form
Approximate Size Length by Width
by Height,in.(mm)
Approximate
Weight,
lb(kg) Five-gment23by23⁄4by13⁄4(583by70by44)5(2.3) Four-gment28by41⁄2by4(711by114by102)20(
9.1) Self-Palletizing261⁄2by65⁄8by25⁄8(672by168by67)25(11.3) 3.1.4Inspection required at the manufacturer’s works(e 8.1).
3.1.5For inch-pound orders specify B93;for metric orders specify B93M.Do not mix units.
4.Chemical Composition
4.1The ingots shall conform to the chemical composition limits prescribed in Table1for sand cast alloys and permanent mold-cast alloys and in Table2for die-cast alloys.Conform-ance shall be determined by the manufacturer by analyzing samples taken at the time the ingots are poured or samples taken from the ingots.If the manufacturer has determined the
土豆牛腩1This specification is under the jurisdiction of ASTM Committee B07on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.04on Magnesium Alloy Cast and Wrought Products.
Current edition approved Dec.7,2009.Published February2010.Originally approved in1934.Last previous edition approved in2006as B93/B93M–06.DOI: 10.1520/B0093_B0093M-07.
2For referenced ASTM standards,visit the ASTM website,www.astm,or contact ASTM Customer Service at rvice@astm.For Annual Book of ASTM
Standards volume information,refer to the standard’s Document Summary page on the ASTM website.
3Withdrawn.The last approved version of this historical standard is referenced on www.astm.
Copyright©ASTM International,100Barr Harbour Dr.,P.O.box C-700West Conshohocken,Pennsylvania19428-2959,United States
chemical composition of the material during manufacture,he shall not be required to sample and analyze the ingots.
4.2The alloys shall conform to the chemical composition requirements prescribed in Table 1and Table 2(Note 2and Note 3).
N OTE 2—Analysis shall regularly be made only for the elements specifically mentioned in the tables.If,however,the prence of other elements is suspected or indicated in the cour of routine analysis,further analysis shall be made to determine that the total of the other elements is not in excess of the limits specified in the last column of the table.N OTE 3—The following applies to all specified limits in the tables:For purpos of acceptance and rejection,an obrved value or a calculated value obtained from analysis shall be rounded off in accordance with the rounding off method of Practice E29to the nearest unit in the last right-hand place of figures ud in expressing the specified limit.
5.Workmanship,Finish and Appearance
5.1The ingots shall be uniform in quality and shall be commercially free of slag or other foreign material.
杨降6.Sampling for Chemical Analysis
6.1Sufficient samples shall be taken by the manufacturer to ensure conformance to the chemical composition requirement of the alloy.
6.1.1Samples may be taken from the molten metal when the ingot is poured or from the ingots.Samples shall be repren-tative of the material.
6.2In ca of dispute,the sampling for chemical analysis shall be according to the requirements of Practice E88.
6.2.1If the shipment is in less than carload lots and also in the ca of magnesium-zirconium alloys,one ingot ction shall be taken for sampling for each 2200lb (1000kg)or fraction thereof.
7.Methods of Chemical Analysis
7.1Any suitable method of chemical analysis may be ud.In ca of dispute,the analysis shall be made by methods given in Test Methods E35or any other standard methods of analysis approved by ASTM unless some other method is agreed upon between the purchar and vendor.8.Inspection
8.1If the purchar desires that inspection be made at the manufacturer’s works where the material is made,it shall be so stated in the contract or purcha order.
8.1.1If the purchar elects to have the inspection made at the manufacturer’s works,the manufacturer shall afford the inspector reprenting the purchar all reasonable facilities to satisfy him that the material is being furnished in accordance with this specification.
8.1.2All tests and inspection shall be so conducted as not to interfere unnecessarily with the operation of the works.9.Rejection
9.1Material that does not conform to the requirements of this specification may be rejected and,if rejected,the ller’s
TABLE 2Chemical Requirements for Alloys Ud for Die Castings A
Alloy
Composition,%
Designa-tion B
UNS Magnesium
Alumi-num
Beryllium
Copper,max Iron,max Manga-ne Nickel,max Rare Earth
Silicon Strontium Zinc
Other Metallic impuri-ties,max each C
Other Impuri-ties,max AS41A M10411remainder 3.7–
0.22–0.0.60–0.10max ...0.30AS41B M10413remainder 3.7–4.80.0005-0.0015
0.0150.00350.35–0.0.60–0.10max AM50A M10501remainder 4.5–5.30.0005-0.0015
0.0080.0040.28–0.0.08max ...0.20max AM60A M10601remainder 5.6–
0.15–0.0.20max ...0.20max ...0.30AM60B M10603remainder 5.6–6.40.0005-0.0015
0.0080.0040.26–0.0.08max ...0.20max AZ91A M11911remainder 8.5–0.15–0.0.20max ...0.45–0.30AZ91B M11913remainder 8.5–
0.15–0.0.20max ...0.45–0.30AZ91D M11917remainder 8.5–9.50.0005-0.0015
0.0250.0040.17–0.0.08max ...0.45–0.AJ52A D M17521remainder 4.6–5.50.0005-0.0015
0.0080.0040.26–0.0.08max 1.8–2.30.20max AJ62A D M17621remainder 5.6–6.60.0005-0.0015
0.0080.0040.26–0.0.08 2.1–2.80.20max AS21A M10211remainder 1.9–2.50.0005-0.0015
0.0080.0040.2–0.6
0.001
...
0.7–1.2
...0.20max AS21B D工程咨询合同
M10213remainder 1.9–2.50.0005-0.0015
0.008
0.0035
0.05–0.150.0010.06–0.250.7–1.2
...
0.25max
0.01
...
A
The following applies to all specified limits in this table;for purpos of acceptance and rejection,an obrved value or a calculated value obtained from analysis should be rounded off to the nearest unit in the last right-hand place of figures ud in expressing the specified limit in accordance with the rounding-off procedure prescribed in Practice E29.B
ASTM alloy designations were established in accordance with Practice B951.UNS Numbers were established in accordance with Practice E527.C
Includes listed elements for which no specific limit is shown.D
Alloys AJ52A,AJ62A,and AS21B are patented compositions for elevated temperature applications.Interested parties are invited to submit information regarding the identification of alternatives to the compositions to ASTM International.Your comments will receive careful consideration at a meeting of the responsible technical committee,which you may attend.ASTM International takes no position respecting the validity of any patent rights asrted in connection with any item mentioned in this specification.Urs of this specification are expressly advid that determination of the validity of any such patent rights,and the risk of infringement of such rights,are entirely their own
responsibility.
responsibility shall be limited to replacing the rejected mate-rial.The full weight of the rejected material shall be returned to the manufacturer.
意在言外
突发奇想造句10.Product Marking
10.1Identification shall be by stamping with the alloy designation in Table 1and Table 2.
11.Packaging and Package Marking
11.1Ingots shall be packaged in such a manner as to prevent damage in ordinary handling and transportation.The type of packing and gross weight of individual containers or bundles shall be left to the discretion of the supplier unless otherwi agreed upon.Packaging methods shall be so lected as to permit maximum utility of equipment in unloading and sub-quent handling.Each container or bundle shall contain only one size and alloy when packaged for shipment unless other-wi agreed upon.
11.2Each package shall be marked with the purcha order number,quantity,specification number,alloy,gross or net weights,and the name of the manufacturer.
11.2.1Each package shall be color-coded on two opposite corners,visible from four sides,with the colors listed in Table 3when stated as a purcha order requirement.
11.3Packages shall be such as to ensure acceptance by common or other carriers for safe transportation at the lowest rate to the point of delivery.
11.4For tho alloys listed,the various national regulations concerning the transportation of the alloys will be complied with in regard to hazardous materials.
12.Keywords
12.1composition;die casting;high pressure die cast alloy;magnesium;permanent mold casting;sand casting三年不目月
毕业贺卡ASTM International takes no position respecting the validity of any patent rights asrted in connection with any item mentioned in this standard.Urs of this standard are expressly advid that determination of the validity of any such patent rights,and the risk of infringement of such rights,
are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revid,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standards and should be addresd to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsible technical committee,which you may attend.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.
This standard is copyrighted by ASTM International,100Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Individual reprints (single or multiple copies)of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585(phone),610-832-9555(fax),or rvice@astm (e-mail);or through the ASTM website (www.astm).Permission rights to photocopy the standard may also be cured from the ASTM website (www.astm/COPYRIGHT/).
TABLE 3Color Code
Alloy Color Code AJ52A Black and White AJ62A Black and Yellow AM50A Black
AM60A Green and White AM60B White
AS21A Blue and Green AS21B Blue and White AS41A Red
AS41B Red and White AZ91B Blue and Yellow AZ91C Brown AZ91D Yellow
AZ91E
Brown and
Yellow
