EN 12450:2012
(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 - Tuyaux circulaires en cuivre, de faible diamètre, sans soudure
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
- Status
- Published
- Publication Date
- 13-Nov-2012
- Withdrawal Date
- 30-May-2013
- Technical Committee
- CEN/TC 133 - Copper and copper alloys
- Drafting Committee
- CEN/TC 133/WG 3 - Copper tubes (installation and industrial)
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 18-Apr-2024
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 14-Dec-2011
Overview
EN 12450:2012 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. EN 12450:2012 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
EN 12450:2012 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
EN 12450:2012 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: EN 12450:2012, 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
EN 12450:2012 is a standard published by the European Committee for Standardization (CEN). 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.
EN 12450:2012 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.
EN 12450:2012 has the following relationships with other standards: It is inter standard links to EN 12450:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 12450:2012 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 CEN 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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Die Norm EN 12450:2012 behandelt die Herstellung und Verwendung von nahtlosen, runden Kupferkapillarröhren, die insbesondere für die Anwendung als Messleitungen für Flüssigkeiten oder Gase konzipiert sind. Die Zielsetzung dieser Norm ist klar umrissen: Sie spezifiziert die chemische Zusammensetzung, die Anforderungen an die Eigenschaften sowie Toleranzen bezüglich der Abmessungen und Formen für diese Kupferkapillarröhren. Ein herausragendes Merkmal der Norm ist der Fokus auf enge Kontrollen der Glattheit und der Dimensionen des Bohrlochs. Diese Anforderungen sind entscheidend, um eine gleichmäßige Fließeigenschaft zu gewährleisten, was für viele industrielle Anwendungen von zentraler Bedeutung ist. Die Norm gilt für Kapillarröhren in gerader Länge oder in Spulen und deckt einen Außendurchmesser-Bereich von bis zu 6,10 mm sowie einen Innendurchmesser von 0,30 mm bis einschließlich 4,45 mm ab. Diese spezifischen Dimensionen sind besonders relevant für Restriktoranwendungen. Ein weiterer wichtiger Aspekt der EN 12450:2012 sind die detaillierten Verfahren zur Probenahme sowie die Prüfmethoden zur Überprüfung der Übereinstimmung mit den Anforderungen dieser Norm. Dies trägt zur Qualitätssicherung und zur Gewährleistung der Leistungsfähigkeit der Produkte bei. Insgesamt ist die EN 12450:2012 von erheblicher Relevanz für Hersteller von Kupferkapillarröhren und deren Anwender in verschiedenen Branchen, da sie klare Richtlinien und Anforderungen bietet, die zur Sicherstellung der Qualität und Funktionalität dieser kritischen Komponenten erforderlich sind. Die Norm stellt somit eine wertvolle Grundlage für die Industrie dar, um die Sicherheit und Effizienz von metrischen Anwendungen zu garantieren.
EN 12450:2012は、液体またはガスのメータリングラインとして使用される無縫製の丸い銅キャピラリーチューブに関する欧州標準であり、その範囲は非常に明確です。この標準には、銅および銅合金の化学組成、特性要件、寸法に関する公差が規定されています。特に、スムーズさや寸法に対する厳格な管理が必要な場合に対応するため、均一な流れ特性を確保することに重点を置いています。 この標準は、直線長のキャピラリーチューブまたはコイル状のキャピラリーチューブを対象としており、外径6.10mmまで、内径0.30mmから4.45mmまでのサイズ範囲で適用されます。これにより、制限装置の用途に最適な製品が供給されます。また、標準は適合性確認のためのサンプリング手続きおよび試験方法も以下に規定しており、銅キャピラリーチューブの品質管理がしっかりと行えることを示しています。 EN 12450:2012は、特に流体の測定に必要な精度を確保するための重要な指針を提供するものであり、関連する業界において大変有用です。これにより、ユーザーは設計段階から適切な材料選定を行い、製品の性能を最大化することが可能となります。標準の遵守により、製造業者は高品質な製品を市場に提供することができるため、その関連性は極めて高いと言えます。
The EN 12450:2012 standard is a critical document that establishes comprehensive guidelines for the use of seamless, round copper capillary tubes. Its primary objective is to specify the composition, property requirements, and tolerances regarding dimensions and form, ensuring that these capillary tubes meet stringent criteria essential for applications requiring precise control over flow characteristics. One of the key strengths of EN 12450:2012 lies in its clear delineation of the scope: it applies specifically to capillary tubes used as metering lines for both liquids and gases. This narrow focus allows manufacturers and users to have a targeted reference that addresses their specific needs, especially where uniform flow characteristics are crucial. Moreover, the standard covers a comprehensive size range for the capillary tubes, extending from an outside diameter of up to and including 6.10 mm and an inside diameter as small as 0.30 mm, up to 4.45 mm. This inclusivity allows for versatility in various applications, particularly in restrictor applications that require meticulous control over fluid dynamics. The standard also specifies sampling procedures and testing methods for verifying conformity, which enhances its relevance in practical applications. Having defined methodologies ensures that manufacturers can reliably assess compliance with the requirements set forth, thereby fostering quality and consistency in production. Overall, EN 12450:2012 stands out in its domain by combining technical specifications with practical testing methodologies, making it an essential reference for stakeholders involved in the production and use of copper capillary tubes. Its focus on quality assurance and operational efficiency significantly contributes to the reliability of metering systems, underscoring its importance in the industry.
EN 12450:2012 표준은 액체 또는 가스를 측정하기 위한 메터링 라인으로 사용되는 무봉입 원형 구리 캡릴러리 튜브의 조성, 특성 요건 및 치수 tolerances를 명확히 규명합니다. 이 표준은 보어의 매끄러움과 치수에 대한 엄격한 제어가 요구되는 애플리케이션에 적합한 캡릴러리 튜브의 명확한 기준을 제공하여, 일관된 유량 특성을 보장하는 데 중요한 역할을 합니다. EN 12450 표준의 강점 중 하나는 캡릴러리 튜브의 직선 길이 및 코일 형태에 대한 구체적인 규정을 포함하고 있다는 점입니다. 이 표준은 6.10 mm까지의 외경 및 0.30 mm부터 4.45 mm까지의 내경을 포함하는 크기 범위에서 사용되며, 이는 제한 장치 애플리케이션에 적합한 튜브에 대한 구체적인 가이드라인을 제공하여 다양한 산업 분야에서의 활용도를 증가시킵니다. 또한, EN 12450:2012는 품질 보증 측면에서도 뛰어난 강점을 가지고 있으며, 표준에 대한 적합성을 검증하기 위한 샘플링 절차 및 시험 방법을 명시함으로써, 제조업체가 고품질의 제품을 제공할 수 있도록 돕습니다. 이러한 측면은 고객의 신뢰를 구축하고, 산업 표준을 충족하는 제품 개발에 기여합니다. 결론적으로, EN 12450:2012 표준은 구리 및 구리 합금 분야에서 필수적인 규정으로, 액체 및 가스의 정확한 계량을 요구하는 다양한 응용 프로그램에 있어서 높은 관련성과 효용성을 지니고 있습니다.
La norme EN 12450:2012, intitulée « Cuivre et alliages de cuivre - Tubes capillaires en cuivre ronds sans soudure », constitue un référentiel essentiel dans le domaine des tubes capillaires. Le champ d'application de cette norme est clairement défini, précisant qu'elle s'applique aux tubes capillaires en cuivre ronds, que ce soit en longueurs droites ou en bobines, et ce, pour des diamètres extérieurs allant jusqu'à 6,10 mm et des diamètres intérieurs de 0,30 mm à 4,45 mm. Cela en fait une norme particulièrement pertinente pour les applications nécessitant un contrôle précis de la douceur et des dimensions du diamètre intérieur, crucial pour garantir des caractéristiques d'écoulement uniformes dans les lignes de mesure de liquides ou de gaz. Parmi les points forts de la norme, il convient de souligner l'exigence de composition et de propriétés, qui assure que les tubes respectent des critères stricts de performance et de fiabilité. Les tolérances sur les dimensions et la forme sont clairement spécifiées, permettant aux fabricants de garantir la conformité et la qualité de leurs produits. En outre, la norme inclut des procédures d'échantillonnage et des méthodes d’essai pour vérifier la conformité aux exigences, ce qui renforce sa valeur comme outil de standardisation dans le secteur. La norme EN 12450:2012 est donc d'une grande pertinence pour les acteurs de l'industrie, car elle offre un cadre rigoureux pour la production de tubes capillaires en cuivre, assurant ainsi sécurité et efficacité dans leur utilisation. L'importance de cette norme se retrouve également dans le cadre plus large de la normalisation européenne, où elle contribue à harmoniser les pratiques au sein des États membres.
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