tailieunhanh - Designation: B 91 – 97 - Magnesium-Alloy Forgings1

This standard is issued under the fixed designation B 91; 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 (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. | Designation B 91 97 Standard Specification for Magnesium-Alloy Forgings1 This standard is issued under the fixed designation IB 91 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 e 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 This specifica0on covens magnesium afioy í designated as shown in Table 1. The values stated in inch-pound units are the standard. The SI values in parentheses are provided for information only. 2. Referenced Documents The following documents of the issue in effect on date of material purchase form a part of this speci ínì n to the extent referenced herein ASTM Standards B 275 Practice for Codi ínìon off Certain Nonferrous McL als and Alloys Cast and Wrought2 3 B 557 Test Methods of Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products2 B 660 Practices for Packaging Packing of Aluminum and Magnesium Products2 E 29 Practice for Using Significant DigUs in Tees Díìíi to Determine Conformance with Specifica0ons3 E 35 Test Methods for Chemical Analysis of Magnesium and Magnesium Alloys4 E 55 Practice for Sampling Wrought Nonferrous Metals and Alloys for ietermination of Chemical Composition4 Federal Standards No. 123 Marking for Shipment Civil Agencies 5 No. 184 Ideniiflcalton Mmking off Aluminum. Magi idsLim. and Titanium. Military Standards MIL-M-3171 Magnesium Alloy Processes for Pretreatment and Prevention of Corrosion on MIL-STD-129 Marking for Shipment and Storage5 3. Terminology Definitions forging a mdal part worked to a predetemrmed 1 This specification is under the jurisdiction of ASTM Commisiee B-7 on Light Metals and Alloys and is the direct responsibility of Subcommittee on Magnesium .