EN 755-7 Aluminum and Aluminum Alloys - Extruded Bar - Part 7: Seamless Tubes - Size and Form Tolerances Test

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EN 755-7 Aluminum and Aluminum Alloys - Extruded Bar - Part 7: Seamless Tubes - Size and Form Tolerances Test

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 755-7 testing. This European standard is supplied in straight lengths from 8 mm to 450 mm outside diameter (OD) 10 mm to 350 mm. This European standard applies only to pipes produced by the seamless die/mandrel extrusion method. This standard applies to extruded seamless pipes for general engineering applications only. The temper definitions used in this section are according to EN 515.

EN 755-7 Aluminum and Aluminum Alloys - Extruded Bar - Part 7: Seamless Tubes - Size and Form Tolerances Test

This European standard does not apply to:

  • Extruded pipes produced by porthole/bridge method (EN 755-8);
  • Pipes delivered in coils (EN 13957);
  • Coiled tubing cut to length (EN 13957).

For the purposes of this European standard, alloys are divided into two groups corresponding to varying degrees of difficulty during the manufacture of products.

Where outer diameter OD, inside diameter ID, and wall thickness t (or their equivalent dimensions other than round pipe) are specified, standard tolerances will apply to any two of these dimensions, but not to all three. As a result, the buyer will specify only two nominal sizes in any order.

Average diameter is defined as the average of two diameter measurements taken at right angles to each other at any position along the length. The maximum allowable deviation of the diameter from the specified diameter at any point is the maximum difference measured at any point along the length of the pipe, i.e. it includes any ovality in the cross section.

EUROLAB assists manufacturers with EN 755-7 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.

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