1、Designation: B918/B918M 09B918/B918M 17Standard Practice forHeat Treatment of Wrought Aluminum Alloys1This standard is issued under the fixed designation B918/B918M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last
2、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 U.S. Department of Defense.1. Scope*Scope1.1 This practice is intended for u
3、se in the heat treatment of wrought aluminum alloys for general purpose applications.1.1.1 The heat treatment of wrought aluminum alloys used in specific aerospace applications is covered in AMS 2772.21.1.2 Heat treatment of aluminum alloy castings for general purpose applications is covered in Prac
4、tice B917/B917M.1.2 Times and temperatures appearing in the heat-treatment tables are typical for various forms, sizes, and manufacturingmethods and may not provide the optimum heat treatment for a specific item.1.3 Some alloys in the 6xxx series may achieve the T4 temper by quenching from within th
5、e solution temperature range duringor immediately following a hot working process, such as upon emerging from an extrusion die. Such alternatives to furnace heatingand immersion quenching are indicated in Table 2, Table 2, by Footnote L, for heat treatment of wrought aluminum alloys.However, this pr
6、actice does not cover the requirements for a controlled extrusion press or hot rolling mill solution heat treatment.(Refer to Practice B807 for extrusion press solution heat treatment of aluminum alloys and to Practice B947 for hot rolling millsolution heat treatment of aluminum alloys.)31.4 UnitsTh
7、e values stated in either SI units or inch-pound units are to be regarded separately as standard. The values statedin each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with the
8、 standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.6 Thi
9、s international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TB
10、T) Committee.2. Referenced Documents2.1 The following documents, of the issue in effect on the date of material purchase, form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
11、B881 Terminology Relating to Aluminum- and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesG69 Test Method for Measurement of Corrosion Potentials of Aluminum AlloysG110 Practice for Evaluating Intergranular Corrosion Resistance of Heat Tre
12、atable Aluminum Alloys by Immersion in SodiumChloride + Hydrogen Peroxide Solution2.3 American National Standard:H35.1/H35.1(M) Alloy and Temper Designation Systems for Aluminum41 This practice is under the jurisdiction ofASTM Committee B07 on Light Metals andAlloys and is the direct responsibility
13、of Subcommittee B07.03 on AluminumAlloyWrought Products.Current edition approved March 15, 2009May 1, 2017. Published April 2009May 2017. Originally approved in 2001. Last previous edition approved in 20012009 asB918 01.B918/B918M 09. DOI: 10.1520/B0918_B0918M-09.10.1520/B0918_B0918M-17.2 Available
14、from SAE International, 400 Commonwealth Dr., Warrendale, PA 15096-0001, http:/www.sae.org.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Sum
15、mary page on the ASTM website.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.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 ma
16、de to the previous version. Becauseit 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 versionof the standard as published by ASTM is to be considered the official document.*A
17、Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE 2 Recommended Heat Treatment for Wrought Aluminum AlloysAProductSolution Heat Treatment Precipitation Heat TreatmentBP
18、roduct Metal Temperature,10F 6CC,DQuenchTemperature,F CETemper Metal Temperature,10F 6CTime atTemperature,hTemper2011 AlloyACold-finished wire, rod,and bar945-995 507535 110 43 max T3FT4T451G320 160. . . . .14. . . . .T8F. . . . .Cold-finished wire, rod, 945995 507535 110 43 max T3F 320 160 14 T8Fan
19、d bar T4 . . . . . . . . .T451G . . . . . . . . . Drawn tube 975 524 110 43 max T3FT4511G. . . . . . . . .Drawn tube 975 524 110 43 max T3F 320 160 14 T8FT4511G . . . . . . . . .2014 AlloyAFlat sheet, bare orAlclad935 502 110 43 max T3FT42. . .320 160. . .18. . .T62Flat sheet, bare 925945 496507 110
20、 43 max T3F . . . . . . . . .or Alclad 935 502 T42 320 160 1820 T62 Coiled sheet, bare 925945 496507 110 43 max T4 320 160 18 T6Coiled sheet, bare orAlclad935 502 110 43 max T4T42320 160320 1601818T6T62or Alclad 935 502 T42 320 160 1820 T62 Plate, bare or Alclad 935 502 110 43 max T451GT42320 160. .
21、 .18. . .T651G. . .Plate, bare or Alclad 925945 496507 110 43 max T451G 320 160 18 T651G935 502 T42 350 177 89 T62 Cold-finished wire, rod, 925945 496507 110 43 max T4 350 177 9 T6and bar T451H 350 177 9 T651H935 502 T42 350 177 89 T62 Cold-finished wire, rod,and bar935 502 110 43 max T4T451HT42320
22、160or 350 177320 160or 350 177320 160or 350 177188188188T6T651HT62Extruded wire, rod, bar, 925945 496507 110 43 max T4 350 177 9 T6profiles, and tube T4510H 350 177 9 T6510HT4511H 350 177 9 T6511H935 502 T42 350 177 89 T62 Extruded wire, rod, bar,profiles, and tube935 502 110 43 max T4T4510HT4511HT4
23、2320 160or 350 177320 160or 350 177320 160or 350 177320 160or 350 177188188188188T6T6510HT6511HT62Drawn tube 925945 496507 110 43 max T4 350 177 9 T6935 502 T42 350 177 89 T62Drawn tube 935 502110 43 Die forgings 935 502 140180 60-82 T4 340 171 10 T6Die forgings 925945 496507 140180 6082 T4 350 177
24、9 T6 Hand forgings and rolled 925945 496507 140180 6082 T4 350 177 9 T6Hand forgings and rolledrings935 502 140180 60-82 T452IT4340 171340 1711010T652IT6rings 935 502 T452I 350 177 10 T652I2017 AlloyACold-finished wire, rod,and bar925950 496-510 110 43 max T4T451HT42. . . . . . . . . . . . . . . . .
25、 . .Cold-finished wire, rod, 925950 496510 110 43 max T4 . . . . . . . . .B918/B918M 172TABLE 2 ContinuedProductSolution Heat Treatment Precipitation Heat TreatmentBProduct Metal Temperature,10F 6CC,DQuenchTemperature,F CETemper Metal Temperature,10F 6CTime atTemperature,hTemperand bar T451H . . . .
26、 . . . . .T42 . . . . . . . . .2018 AlloyADie forgings 940970 504-521 212 100 T4 340 171 10 T61Die forgings 940970 504521 212 100 T4 340 171 10 T612024 AlloyAFlat sheet, bare orAlclad920 493 110 43 max T3FT361JT42T42375 191375 191375 191375 191128916T81FT861JT62T72Flat sheet, bare 910930 488499 110
27、43 max T3F 375 191 12 T81For Alclad 920 493 T361J 375 191 8 T861JT42 375 191 910 T62T42 375 191 1618 T72 Coiled sheet, bare 910930 488499 110 43 max T4 375 191 910 T6Coiled sheet, bare orAlclad920 493 110 43 max T4T42. . .375 191. . .9. . .T62or Alclad 920 493 T42 375 191 9 T62T42 375 191 1618 T72 P
28、late, bare or Alclad 920 493 110 43 max T351GT361JT42375 191375 191375 1911289T851GT861JT62Plate, bare or Alclad 910930 488499 110 43 max T351G 375 191 12 T851G920 493 T361J 375 191 8 T861JT42 375 191 910 T62 Cold-finished wire, rod,and bar920 493 110 43 max T351HT36JT4T42375 191. . .375 191375 1911
29、2. . .1216T851H. . .T6T62Cold-finished wire, rod, 910930 488499 110 43 max T351H 375 191 12 T851Hand bar T36J . . . . . . . . .T4 375 191 12 T6920 493 T42 375 191 1213 T62 Extruded wire, rod, bar, 910930 488499 110 43 max T3F 375 191 12 T81Fprofiles, and tube T3510H 375 191 12 T8510HT3511H 375 191 1
30、2 T8511H920 493 T42 375 191 1213 T62 Extruded wire, rod, bar,profiles, and tube920 493 110 43 max T3FT3510HT3511HT42375 191375 191375 191. . .121212. . .T81FT8510HT8511H. . .Drawn tube 910930 488499 110 43 max T3F 375 191 12 T8F920 493 T42 375 191 910 T62 Drawn tube 920 493 110 43 max T3FT42. . . .
31、. . . . . . . . .Die Forgings 910930 488499 110 43 max T3F 37519111 T81F2025 AlloyADie forgings 960 516 140160 60-71 T4 340 171 10 T6Die forgings 950970 510521 140160 6071 T4 350 177 9 T62117 AlloyACold-finished, wire orrod925950 496-510 110 43 max T4 . . . . . . . . .Cold-finished, wire 925950 4965
32、10 110 43 max T4 . . . . . . . . .or rod2124 AlloyAPlate 920 493 110 43 max T351G 350 177 12 T851GPlate 910930 488499 110 43 max T3F 375 191 12 T8FT31G 370 188 12 T8151GT4 375 191 9 T6920 493 T3F 375 191 12 T82FB918/B918M 173TABLE 2 ContinuedProductSolution Heat Treatment Precipitation Heat Treatmen
33、tBProduct Metal Temperature,10F 6CC,DQuenchTemperature,F CETemper Metal Temperature,10F 6CTime atTemperature,hTemperT42 375 191 10 T622218 AlloyADie forgings 950 510 212 100 T4 340 171 10 T61Die forgings 940960 504516 212 100 T4 340 171 10 T61T4 460 238 6 T7950 510 T4 340 171 10 T62T4 460 238 6 T722
34、219 AlloyAFlat sheet, bare orAlclad995 535 110 43 max T31FT37KT42350 177325 163375 191182436T81FT87KT62Flat sheet, bare 9851005 529541 110 43 max T31F 350 177 18 T81For Alclad T37K 325 163 24 T87K995 535 T42 375 191 1719 T62 Plate 9851005 529541 110 43 max T37K 325 163 1719 T87KPlate 995 535 110 43
35、max T37KT351GT42350 177350 177375 191181836T87KT851GT62T351G 350 177 18 T851G995 535 T42 375 191 3537 T62 Cold-finished wire, rod, 9851005 529541 110 43 max T4 375 191 18 T6Cold-finished wire, rod,and bar995 535 110 43 max T4T351H375 191375 1911818T6T851Hand bar T351H 375 191 18 T851H Extruded wire,
36、 rod, bar,profiles, and tube995 535 110 43 max T31FT3510HT3511HT42375 191375 191375 191375 19118181836T81FT8510HT8511HT62Extruded wire, rod, bar, 9851005 529541 110 43 max T31F 375 191 18 T81Fprofiles, and tube T3510H 375 191 18 T8510HT3511H 375 191 18 T8511H995 535 T42 375 191 3537 T62T3 375 191 17
37、19 T82 Die forgings and rolled 9851005 529541 110 43 max T4 375 191 26 T6rings 995 335 T42 375 191 2527 T62T352I 350 177 1719 T82I Die forgings and rolledrings995 535 110 43 max T4 375 191 26 T6Hand forgings 9851005 529541 110 43 max T4 375 191 26 T6995 335 T42 375 191 2527 T62Hand forgings 995 535 110 43 max T4T352I375 191350 1772618T6T852IT352I 350 177
