ASTM B918 PDF

Such alternatives to furnace heating and immersion quenching are indicated in Table 2, by Footnote L , for heat treatment of wrought aluminum alloys. However, this practice does not cover the requirements for a controlled extrusion press or hot rolling mill solution heat treatment. Refer to Practice B for extrusion press solution heat treatment of aluminum alloys and to Practice B for hot rolling mill solution heat treatment of aluminum alloys. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

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Some rush fees may apply. Add to Cart. View Full Details and Buy. Complementary Documents and Links:. This practice is intended for use in the heat treatment of wrought aluminum alloys for general purpose applications. The heat treatment of wrought aluminum alloys used in specific aerospace applications is covered in AMS Times and temperatures appearing in the heat-treatment tables are typical for various forms, sizes, and manufacturing methods and may not provide the optimum heat treatment for a specific item.

Some alloys in the 6xxx series may achieve the T4 temper by quenching from within the solution temperature range during or immediately following a hot working process, such as upon emerging from an extrusion die. Such alternatives to furnace heating and immersion quenching are indicated in Table 2, by Footnote L, for heat treatment of wrought aluminum alloys.

However, this practice does not cover the requirements for a controlled extrusion press or hot rolling mill solution heat treatment. Refer to Practice B for extrusion press solution heat treatment of aluminum alloys and to Practice B for hot rolling mill solution heat treatment of aluminum alloys. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Combining values from the two systems may result in nonconformance with the standard. This standard does not purport to address all of the safety concerns, if any, associated with its use. 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 international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade TBT Committee.

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ASTM B918/B918M

Historical Version s - view previous versions of standard. Work Item s - proposed revisions of this standard. More B This practice is intended for use in the heat treatment of wrought aluminum alloys for general purpose applications. Aluminum alloys are typically heated in air chamber furnaces or molten salt baths. Though lead baths, oil baths, or fluidized beds may be used, uncontrolled heating is not permitted. The furnace temperature uniformity and calibration shall conform to the specified requirements.

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Standard Practice for Heat Treatment of Wrought Aluminum Alloys

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