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前言本表汇集了铝业协会(The Aluminum Association)各公司生产的纯铝及变形铝合金的编号(牌号)与化学成分标准,是铝业协会技术处(the Technica Di-vision of The Aluminum Assocition,缩写为 AATD)汇编的。合金数量,既可增添,也可注销,增添是根据需要,注销是因无商业价值(参看《作废合金表》)。增添新合金的准则是:1.该纯铝或铝合金有销路的,增添之。2.产品标准技术委员会(the Technical Committee on product Stand-
Foreword This table collects the numbers (grades) and chemical composition standards of pure aluminum and deformed aluminum alloys produced by the companies of the Aluminum Association. The Technica Di-vision of the Aluminum Assocition Abbreviated AATD) Compilation. The number of alloys can be added or cancelled, and the addition is based on need. The cancellation is due to no commercial value (see “Abandoned Alloy Table”). The criteria for adding new alloys are: 1. The pure aluminum or aluminum alloy is marketable and added. 2. The Technical Committee on product Stand-