SPECIFICATIONS FOR LIGHT. ALLOY PRODUCTS
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WHAT is claimed to be -the most W comprehensive of its kind yet produced is a Noral booklet _giving specifications for products of aluminium and aluminium alloys, issued, free, by the Northern Aluminium Co., Ltd., Banbury, Oxfordshire. Applications for it 'should be addressed to the ResCarch Development Department of the Company.
This is the second edition. The first was a classified summary of current D.T.D. and B.S. Specifications of these classes 61 material, but during the past 12 months many specifications have been cancelled or modified, and the new edition includes all relevant alterations issued up to the end of November. To simplify the presentation of . these changes, all specifications cancelled in recent years have been included in the numerical index, with notes concerning the reasons for the cancellations.
The booklet includes a full range of British light alloys, classified into the various forms in which each is produced, namely, ingots, sheet and strip. bars and sections, tubes, wire and rivets, forgings and castings. Finally is a tabulation of proprietary .alloys showing the corresponding specifications and forms of material to which they apply.