Preparation of Light Aluminum-Copper Casting Alloys (Classic Reprint)

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Excerpt from Preparation of Light Aluminum-Copper Casting AlloysMagnesium also is sometimes found as an impurity in No. 12 alloy, it being occasionally added to heats. So-called No. 12 pig from miscellaneous scrap may differ greatly in composition when run down, besides copper, iron, and silicon it often contains considerable zinc and manganese, with magnesium in subordinate amounts. Zinc may run up to 5 per cent and more, and manganese may be present to the extent of per cent.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.