Metallurgi

This document specifies the chemical composition limits for aluminium casting alloys and mechanical properties of separately cast test pieces for these alloys. Annex C is included as a guide to the selection of alloys for a specific use or process. This document is intended to be used in conjunction with EN 576, EN 1559 1, EN 1559 4, EN 1676 and EN ISO 8062 3.

This European Standard defines the requirements for grades of alloyed aluminium ingots intended for remelting. It specifies the classifications and designations applicable to these grades, the conditions in which they are produced, their properties and the marks by which they are identified.

Dear EG M Committee member, 

In your capacity as a member of one of the EG-M committees, you are hereby requested to comment on the international standard referred to in this e-mail. 

 

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Espen Holm
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Standard Norge / Standards Norway
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This document specifies a method for the estimation of the average grain size of copper and copper alloy products by ultrasound. This document can be applied for seamless round tubes as well as for flat products. This method can be used in place of test methods according to EN ISO 2624, mentioned in the relevant product standards. As reference method and in case of doubt the intercept procedure or planimetric procedure will be used.

This document specifies a procedure for the eddy current test with an encircling test coil for measuring defects on the outer surface of seamless round copper and copper alloy tubes. NOTE The eddy current test method(s) required, together with the size range and acceptance level, are defined in the relevant product standard. The choice of the method for eddy current test: - with an encircling test coil on the outer surface according to prEN 1971-1; or - with an internal probe on the inner surface according to prEN 1971-2; is at the discretion of the manufacturer if there are no other agreements between the purchaser and the supplier.

This document specifies a procedure for the eddy current test with an internal probe for measuring defects on the inner surface of seamless round copper and copper alloy tubes. This document applies particularly for finned tubes with high fins according to EN 12452. NOTE The eddy current test method(s) required, together with the size range and acceptance level, are defined in the relevant product standard. The choice of the method for eddy current test: - with an encircling test coil on the outer surface according to prEN 1971-1 or - with an internal probe on the inner surface according to prEN 1971-2 is at the discretion of the manufacturer if there are no other agreements between the purchaser and the supplier. Especially for finned tubes according to EN 12452 with high fins, it is suggested to use eddy current test with internal probe as described in this document.