SIST EN 12450:2013
(Main)Copper and copper alloys - Seamless, round copper capillary tubes
Copper and copper alloys - Seamless, round copper capillary tubes
This European Standard specifies the composition, property requirements and tolerances on dimensions and on form for seamless round copper capillary tubes for use as metering lines for liquids or gases where close controls over the smooth¬ness and dimensions of the bore are required to ensure uniform flow characteristics.
This European Standard applies to capillary tubes in straight lengths, or in coils, in the size range up to and including 6,10 mm outside diameter and from 0,30 mm up to and including 4,45 mm inside diameter which are intended for restrictor applications.
The sampling procedures and the methods of test for verification of conformity to the requirements of this European Standard are also specified.
Kupfer und Kupferlegierungen - Nahtlose, runde Kapillarrohre aus Kupfer
Diese Europäische Norm legt die Zusammensetzung, die Anforderungen an die Eigenschaften, Grenzabmaße und Formtoleranzen für nahtlose, runde Kapillarrohre aus Kupfer fest, die als Messleitung für Flüssigkeiten oder Gase verwendet werden, wobei eine enge Kontrolle der Oberflächenbeschaffenheit und der Maße der Bohrung gefordert wird, um eine gleichmäßige Durchflusscharakteristik zu gewährleisten.
Diese Europäische Norm gilt für Kapillarrohre in geraden Längen oder in Ringen mit Außendurchmesser des Rohres bis 6,10 mm und Innendurchmesser von 0,30 mm bis 4,45 mm, die für Durchflussbegrenzer vorgesehen sind.
Der Ablauf der Probenentnahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anfor-derungen dieser Europäischen Norm sind ebenfalls festgelegt.
Cuivre et alliages de cuivre - Tubes capillaires, ronds, sans soudure en cuivre
La présente Norme européenne spécifie la composition, les exigences relatives aux caractéristiques et les tolérances relatives aux dimensions et à la forme des tuyaux circulaires en cuivre, de faible diamètre, sans soudure, utilisés dans les installations pour compteur d’eau ou compteur à gaz pour lesquels des contrôles minutieux concernant l’absence de rugosité et les dimensions du diamètre intérieur sont nécessaires pour assurer un débit régulier.
La présente Norme européenne s’applique aux tuyaux de faible diamètre, rectilignes ou en couronne, d’un diamètre extérieur inférieur ou égal à 6,10 mm et d’un diamètre intérieur compris entre 0,30 mm et 4,45 mm, qui sont destinés à des applications de réduction de débit.
Les modes opératoires d’échantillonnage et les méthodes d’essai de vérification de la conformité aux exigences de la présente Norme européenne sont également spécifiés.
Baker in bakrove zlitine - Nevarjene kapilarne cevi z okroglim prerezom
Ta evropski standard določa sestavo, zahteve v zvezi z lastnostmi ter tolerance pri dimenzijah in obliki za nevarjene kapilarne cevi z okroglim prerezom za uporabo v merilnih vodih za tekočine ali pline, kjer je potrebno strogo preverjanje gladkosti in dimenzij izvrtine za zagotavljanje enakih lastnosti pretoka. Ta standard se uporablja za ravne kapilarne cevi ali kapilarne cevi v tuljavah velikosti do vključno 6,10 mm zunanjega premera in od 0,30 mm do vključno 4,45 mm notranjega premera za uporabo v obliki omejeval. Določeni so tudi postopki vzorčenja in preskusne metode za preverjanje skladnosti z zahtevami iz tega evropskega standarda.
General Information
Relations
Overview
SIST EN 12450:2013 is a European Standard developed by CEN that specifies stringent requirements for seamless, round copper capillary tubes made from copper and copper alloys. These tubes are designed primarily for use as metering or restrictor lines in liquid or gas systems, where precision in bore smoothness and dimensional tolerances ensures consistent and uniform flow characteristics. The standard governs tubes up to 6.10 mm outside diameter and 4.45 mm inside diameter, supplied in straight lengths or coils.
The standard outlines requirements for chemical composition, mechanical properties, dimensional and form tolerances, along with sampling and testing methods to verify conformity. SIST EN 12450:2013 supersedes the previous 1999 edition, introducing updated criteria particularly in surface quality and cleanliness testing.
Key Topics
Material Composition and Condition
Tubes must consist of copper with a minimum copper and silver content of 99.90%, designated Cu-DHP or CW024A, with phosphorus content between 0.015% and 0.040%. Material conditions include R (minimum tensile strength) and H (minimum hardness) classifications to define mechanical property expectations.Mechanical Properties
The standard prescribes mechanical requirements such as tensile strength, elongation, and hardness. For example, tubes with material condition R240 must have a minimum tensile strength of 240 N/mm² and a minimum elongation of 15%. Hardness classifications range from 50 HV to approximately 110 HV depending on the condition.Dimensional Tolerances
Critical for flow uniformity, EN 12450 sets strict dimensional tolerances:- Outside diameter tolerance of ±0.050 mm including roundness deviation
- Inside diameter tolerance of ±0.025 mm determined via flow testing
- Length tolerances vary by size: from +1.6 mm up to 500 mm length, to +1‰ (max 5 mm) for lengths over 2,000 mm
Surface Quality and Flow Requirements
Tubes must have smooth, clean internal and external surfaces to prevent flow disturbance. When requested, tubes undergo flow testing to ensure tight tolerances on fluid throughput, with allowable deviations detailed in the standard. Cleanliness testing, including lubricant residue checks, is part of product verification.Sampling and Testing Methods
EN 12450 describes procedures for sampling, chemical analysis, tensile and hardness tests, flow measurement, and cleanliness assessments to guarantee consistent manufacture and product quality. These tests ensure compliance with the defined specifications.Ordering and Documentation
Clear guidance is given for purchasers on specifying product quantity, material condition, dimensions, length or coil mass, and additional requirements such as flow, surface quality, and certification needs. This facilitates a common understanding between supplier and buyer.
Applications
SIST EN 12450:2013 copper capillary tubes find extensive usage in industries where precise fluid control is essential, including:
HVAC and Refrigeration Systems
Used as restrictor and metering lines in refrigeration circuits for controlling refrigerant flow and pressure.Medical Gas Distribution
The high smoothness and tight dimensional control make these tubes suitable for medical gases, ensuring safety and reliability.Industrial Instrumentation
Precision capillary tubes serve as metering lines in analytical and process control equipment.Automotive and Aerospace
Used in fuel or hydraulic fluid metering lines where tight flow characteristics are critical.
They are preferred wherever uniform flow, minimal pressure drop, and material quality impact system performance.
Related Standards
SIST EN 12450:2013 fits within a broad family of European standards on copper tubes, including:
- EN 1057 - Seamless, round copper tubes for water and gas applications
- EN 12449 - Seamless, round tubes for general purposes
- EN 12451 & EN 12452 - Tubes for heat exchanger applications
- EN 12735 Parts 1 & 2 - Copper tubes for air conditioning and refrigeration systems
- EN 13348 & EN 13349 - Copper tubes for medical gases and pre-insulated copper tubes
- EN 13600 - Copper tubes for electrical purposes
These complementary standards cover wider copper alloy tube product types, applications, and testing methodologies.
Keywords: SIST EN 12450:2013, copper capillary tubes, seamless copper tubes, copper alloys, dimensional tolerances, bore smoothness, flow uniformity, metering lines, copper tubing standard, CEN copper tubes, HVAC copper tubes, refrigeration tubes, medical gas copper tubes, copper tube specifications.
Frequently Asked Questions
SIST EN 12450:2013 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Copper and copper alloys - Seamless, round copper capillary tubes". This standard covers: This European Standard specifies the composition, property requirements and tolerances on dimensions and on form for seamless round copper capillary tubes for use as metering lines for liquids or gases where close controls over the smooth¬ness and dimensions of the bore are required to ensure uniform flow characteristics. This European Standard applies to capillary tubes in straight lengths, or in coils, in the size range up to and including 6,10 mm outside diameter and from 0,30 mm up to and including 4,45 mm inside diameter which are intended for restrictor applications. The sampling procedures and the methods of test for verification of conformity to the requirements of this European Standard are also specified.
This European Standard specifies the composition, property requirements and tolerances on dimensions and on form for seamless round copper capillary tubes for use as metering lines for liquids or gases where close controls over the smooth¬ness and dimensions of the bore are required to ensure uniform flow characteristics. This European Standard applies to capillary tubes in straight lengths, or in coils, in the size range up to and including 6,10 mm outside diameter and from 0,30 mm up to and including 4,45 mm inside diameter which are intended for restrictor applications. The sampling procedures and the methods of test for verification of conformity to the requirements of this European Standard are also specified.
SIST EN 12450:2013 is classified under the following ICS (International Classification for Standards) categories: 23.040.15 - Non-ferrous metal pipes; 77.150.30 - Copper products. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 12450:2013 has the following relationships with other standards: It is inter standard links to SIST EN 12450:2000, SIST EN 12450:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 12450:2013 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Baker in bakrove zlitine - Nevarjene kapilarne cevi z okroglim prerezomKupfer und Kupferlegierungen - Nahtlose, runde Kapillarrohre aus KupferCuivre et alliages de cuivre - Tubes capillaires, ronds, sans soudure en cuivreCopper and copper alloys - Seamless, round copper capillary tubes77.150.30Bakreni izdelkiCopper products23.040.15Cevi iz neželeznih kovinNon-ferrous metal pipesICS:Ta slovenski standard je istoveten z:EN 12450:2012SIST EN 12450:2013en,de01-april-2013SIST EN 12450:2013SLOVENSKI
STANDARDSIST EN 12450:20001DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12450
November 2012 ICS 23.040.15; 77.150.30 Supersedes EN 12450:1999English Version
Copper and copper alloys - Seamless, round copper capillary tubes
Cuivre et alliages de cuivre - Tuyaux circulaires en cuivre, de faible diamètre, sans soudure
Kupfer und Kupferlegierungen - Nahtlose, runde Kapillarrohre aus Kupfer This European Standard was approved by CEN on 6 October 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12450:2012: ESIST EN 12450:2013
EN 13348, Copper and copper alloys — Seamless, round copper tubes for medical gases or vacuum EN 13349, Copper and copper alloys — Pre-insulated copper tubes with solid covering EN 13600, Copper and copper alloys — Seamless copper tubes for electrical purposes Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 3 "Copper tubes (installation and industrial)" to revise the following standard: EN 12450:1999, Copper and copper alloys — Seamless, round copper capillary tubes. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12450:2013
EN 1057:2006, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and heating applications EN 1655, Copper and copper alloys — Declarations of conformity EN 10204, Metallic products — Types of inspection documents EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1) EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1057:2006 and the following apply. 3.1 seamless round tube hollow semi-finished product, circular in cross-section, having a uniform wall thickness, which at all stages of production has a continuous periphery 3.2 mean diameter arithmetical mean of the maximum and minimum outside diameters through the same cross-section of the tube [SOURCE: EN 1057:2006, 3.5] 3.3 deviation from circular form difference between the maximum and minimum outside diameters measured at any one cross-section of the tube [SOURCE: EN 1057:2006, 3.6] 3.4 capillary tube tube of small inside diameter with an inside surface of high quality and conforming to close diameter tolerances Note 1 to entry: It is subject to special tests to ensure precision and uniformity of bore, having been specially cleaned. SIST EN 12450:2013
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