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EN 10205:2024/prA1 Public enquiry
Comment end date 2026-12-06
Cold reduced tinmill products - Blackplate

This document specifies requirements for blackplate product in the form of coils intended for direct use and mostly for the production of electrolytically zinc coated plate, or coils electrolytically coated with either tin (tinplate) or chromium/chromium oxide (ECCS or ECCS-RC). Blackplate can be a single or double reduced product and is specified in nominal thicknesses that are multiples of 0,005 mm from typical 0,10 mm up to 0,60 mm. This document applies to coils in nominal minimum widths of 600 mm. In addition to this document, the general technical delivery conditions of EN 10021 apply. NOTE Standard width coils for specific uses, e.g. tab stock, can be slit into narrow strip for supply in coil form.

prEN 12451 Public enquiry
Comment end date 2026-11-08
Copper and copper alloys - Seamless, round tubes for heat exchangers

This document specifies the composition, property requirements and tolerances on dimensions and form for seamless round drawn copper and copper alloy tubes for heat exchangers, condensers, evaporators and desalination equipment. It is applicable to copper and copper alloy tubes supplied in the size range from 6 mm up to and including 76 mm outside diameter and from 0,5 mm up to and including 3 mm wall thickness. The sampling procedures and the methods of test for verification of conformity to the requirements of this document are also specified.

prEN 12452 Public enquiry
Comment end date 2026-11-08
Copper and copper alloys - Rolled, finned, seamless tubes for heat exchangers

This document specifies the composition, property requirements and tolerances on dimensions and form for rolled, finned, seamless copper and copper alloy tubes for heat exchangers. It is applicable to copper and copper alloy tubes supplied in the size range from 6 mm up to and including 35 mm outside diameter; from 1 mm up to and including 3,5 mm wall thickness of the unfinned section; and with fin height up to and including 4,5 mm. The sampling procedures and the methods of testing for verification of conformity to the requirements of this document are also specified.

prEN ISO 20482 Public enquiry
Comment end date 2026-11-01
Metallic materials - Sheet and strip - Erichsen cupping test (ISO/DIS 20482:2026)

ISO 20482:2013 specifies a standard test method for determining the ability of metallic sheets and strips having a thickness from 0,1 mm up to 2 mm and a width of 90 mm or greater to undergo plastic deformation in stretch forming. For materials that are thicker and when only narrower strips are available, tools of specified dimensions are provided, in which case subscripts are used, as shown in Table 1.

EN ISO 683-3:2022/prA1 Public enquiry
Comment end date 2026-10-27
Heat-treatable steels, alloy steels and free-cutting steels - Part 3: Case-hardening steels - Amendment 1 (ISO 683-3:2022/DAM 1:2026)
prEN 755-8 Public enquiry
Comment end date 2026-10-27
Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 8: Porthole tubes, tolerances on dimensions and form

This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded porthole tubes with an outside diameter (OD) from 8 mm to 450 mm (round tube, see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 10 mm to 350 mm (other than round tube, see Figure 2), supplied in straight lengths. The temper designations used in this part are according to EN 515. This document only applies to tube produced by the tube porthole/bridge method. This document does not apply to: — extruded tubes produced by the seamless, die/mandrel method (EN 755-7); — tubes delivered in coils (EN 13957); — coiled tubes cut to length (EN 13957). Figure 1 — Round tube Figure 2 — Circumscribing circle for other than round tube

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