EN 10266:2003
(Main)Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards
Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards
This European Standard gives the symbols and definitions of terms for use in product standards for steel tubes, fittings and steel structural hollow sections.
NOTE For definitions of terms non specific to tubular products, see other relevant standards e.g. EN ISO 9000 [1].
Stahlrohre, Fittings und Hohlprofile für den Stahlbau - Symbole und Definition von Begriffen für die Verwendung in Erzeugnisnormen
Diese Europäische Norm enthält die Definition von Begriffen und Symbolen für die Verwendung in Erzeugnisnormen für Stahlrohre, Fittings und Hohlprofile für den Stahlbau.
ANMERKUNG Zur Definition von Begriffen, die nicht speziell für rohrförmige Erzeugnisse gelten, siehe andere entsprechende Normen, z. B. EN ISO 9000 [1].
Tubes en acier, accessoires et profils creux en acier pour la construction - Symboles et définitions des termes à utiliser dans les normes de produits
La présente Norme européenne indique les symboles et définitions des termes en usage dans les normes de produits traitant des tubes, raccords et profils creux de construction en acier.
NOTE Pour les définitions des termes qui ne sont pas spécifiques aux produits tubulaires, voir d'autres normes appropriées, par exemple l'EN ISO 9000.
Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards
General Information
- Status
- Published
- Publication Date
- 19-Aug-2003
- Withdrawal Date
- 28-Feb-2004
- Technical Committee
- ECISS/TC 110 - Steel tubes, and iron and steel fittings
- Drafting Committee
- ECISS/TC 29 - Steel tubes and fittings for steel tubes
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 05-Jun-2025
- Completion Date
- 23-Sep-2025
Overview
EN 10266:2003 - Steel tubes, fittings and structural hollow sections: Symbols and definitions of terms for use in product standards (CEN) defines the standardized vocabulary and symbolic notation used in European product standards for steel tubes, tubular fittings and structural hollow sections. Prepared by CEN/TC 29 and derived from ISO 3545, the standard harmonizes terminology and symbols to ensure consistent specifications, drawings, test procedures and product standards across manufacturers, testing bodies and purchasers.
Key topics
- Definitions of core terms such as tube, structural hollow section, fitting, seamless tube (S), welded tube (W) and specific welded types (e.g. butt welded (BW), electric/high‑frequency welded (EW/HFW), submerged arc welded (SAW), combination welded (COW)).
- General symbols for geometric and dimensional parameters: outside/inside diameter (D, d), wall thickness (T), cross‑sectional area (Ac), mass per unit length (M), length types (standard, exact, approximate, random), and out‑of‑roundness (O = 100 × (Dmax − Dmin) / D).
- Additional symbols for structural hollow sections: corner radii, second moments of area (I), torsional and polar inertia (It), elastic/plastic section moduli (Wel, Wpl), radii of gyration and form‑related measures (twist, convexity/concavity, deviation from straightness).
- Testing symbols and methods referenced: pressure test, flattening, drift expanding, ring expanding, flanging and tube bending - with associated symbol designations used in product standards and test reports.
- Symbols for tubular fittings: dimensional notations for elbows, tees, reducers, caps (major/minor diameters, wall thickness on major/minor diameters, face‑to‑center distances, bending radius, tolerances on form).
Applications
- Creating or interpreting product standards, technical specifications and engineering drawings for steel tubes and fittings.
- Writing procurement documents and contracts that reference standardized terms and symbols to avoid ambiguity.
- Performing and documenting mechanical and dimensional tests in inspection reports and certificates.
- Ensuring consistent communication between manufacturers, fabricators, testing laboratories, structural engineers and conformity assessment bodies.
Who uses this standard
- Standards writers and technical committees
- Tube and fittings manufacturers and fabricators
- Structural and mechanical engineers
- Quality managers and inspection/testing laboratories
- Procurement professionals and regulators
Related standards
- EN ISO 9000 (quality management vocabulary): for definitions non‑specific to tubular products.
- ISO 3545: source standard from which EN 10266:2003 is derived.
Using EN 10266:2003 helps eliminate ambiguity in specifications for steel tubes, fittings and hollow sections by providing a common, CEN‑approved set of symbols and definitions for product standards.
Frequently Asked Questions
EN 10266:2003 is a standard published by the European Committee for Standardization (CEN). Its full title is "Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards". This standard covers: This European Standard gives the symbols and definitions of terms for use in product standards for steel tubes, fittings and steel structural hollow sections. NOTE For definitions of terms non specific to tubular products, see other relevant standards e.g. EN ISO 9000 [1].
This European Standard gives the symbols and definitions of terms for use in product standards for steel tubes, fittings and steel structural hollow sections. NOTE For definitions of terms non specific to tubular products, see other relevant standards e.g. EN ISO 9000 [1].
EN 10266:2003 is classified under the following ICS (International Classification for Standards) categories: 01.040.77 - Metallurgy (Vocabularies); 01.075 - Character symbols; 77.140.75 - Steel pipes and tubes for specific use. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 10266:2003 is associated with the following European legislation: EU Directives/Regulations: 97/23/EC; Standardization Mandates: M/071. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standardsStahlrohre, Fittings und Hohlprofile für den Stahlbau - Symbole und Definition von Begriffen für die Verwendung in ErzeugnisnormenTubes en acier, accessoires et profils creux en acier pour la construction - Symboles et définitions des termes a utiliser dans les normes de produitsSteel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific use01.075Simboli za znakeCharacter symbols01.040.77Metalurgija (Slovarji)Metallurgy (Vocabularies)ICS:Ta slovenski standard je istoveten z:EN 10266:2003SIST EN 10266:2004en01-junij-2004SIST EN 10266:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10266August 2003ICS 01.040.77; 01.075; 77.140.75English versionSteel tubes, fittings and structural hollow sections - Symbols anddefinitions of terms for use in product standardsTubes en acier, accessoires et profils creux en acier pour laconstruction - Symboles et définitions des termes à utiliserdans les normes de produitsStahlrohre, Fittings und Hohlprofile für den Stahlbau -Symbole und Definition von Begriffen für die Verwendung inErzeugnisnormenThis European Standard was approved by CEN on 27 June 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10266:2003 ESIST EN 10266:2004
Afterwelding the tube may be further processed, either hot or cold, into its final dimensions2.6butt welded tube (BW)(also known as continuous weld tube or Fretz Moon tube) tube made by a continuous process in whichdecoiled strip, welded end to end, is passed through a furnace, formed into a hollow profile and theseam weld made by further raising of the temperature of the adjacent edges (e.g. using a jet of oxygen),and pressing the edges together2.7electric welded tube (EW)tube made by pressure welding, in a continuous or non continuous process, in which strip is formed coldinto a hollow profile and the seam weld made by heating the adjacent edges through the resistance tothe passage of high or low frequency current, and pressing the edges together.
The electric currentmay be applied either by direct electrode contact or by induction.2.8high frequency welded tube (HFW)tube made by pressure welding, in a continuous or non continuous process, in which strip is formed coldinto a hollow profile and the seam weld made by heating the adjacent edges through the resistance tothe passage of a high frequency current, and pressing the edges together.
The electric current may beapplied either by direct electrode contact or by induction.SIST EN 10266:2004
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The EN 10266:2003 standard provides a comprehensive framework for the symbols and definitions of terms applicable to steel tubes, fittings, and structural hollow sections. This European Standard is essential for harmonizing terminology within product standards, ensuring clarity and consistency in the steel industry. One of the primary strengths of EN 10266:2003 is its focus on standardization. By defining specific terms and providing universally recognized symbols, the standard minimizes ambiguities that can arise in the communication between manufacturers, suppliers, and consumers. This standardization is crucial in promoting safety, efficiency, and compatibility across various projects and applications involving steel products. Another significant aspect is its relevance in ensuring compliance with manufacturing and product delivery standards. The clear definitions help manufacturers comply with local and international regulations, making this standard vital for quality control processes in production. By aligning product standards with EN 10266:2003, manufacturers can better meet customer expectations, regulatory requirements, and industry best practices. Furthermore, the scope of the standard emphasizes its applicability to an extensive range of products, including fittings and structural hollow sections. This broad applicability makes the EN 10266:2003 document a key reference point for engineers, architects, and construction professionals who work with steel in various applications, from structural design to manufacturing processes. In summary, EN 10266:2003 stands out for its well-defined scope, contributing to technically accurate communication within the steel industry. Its strengths in facilitating standardization, compliance, and applicability make it an indispensable resource for anyone involved in the production and use of steel tubes, fittings, and structural hollow sections.
표준 문서 EN 10266:2003은 강관, 피팅, 구조용 중공부재와 관련된 기호 및 용어의 정의를 제공하는 유럽 표준입니다. 이 표준의 주된 범위는 강관 제품의 표준에서 사용되는 기호와 용어를 정의하여, 통일성과 이해를 높이기 위한 것입니다. EN 10266:2003의 우수한 점은 강관 및 관련 제품에 대한 명확한 기호와 정의를 제공함으로써 설계자와 엔지니어들이 제품을 다룰 때 일관된 언어를 사용할 수 있도록 돕는다는 것입니다. 이는 제품 표준화를 통해 제조 및 품질 관리 프로세스에서 혼동을 줄이고, 국제 거래의 원활함을 증가시키는 데 기여합니다. 또한, 이 표준은 강관 및 구조용 중공부재에 대한 특정 용어를 체계적으로 정리하여, 다양한 산업 분야에서 사용되는 표준화된 용어를 제공함으로써 업계 전반에 걸친 의사소통을 개선합니다. EN 10266:2003은 그 자체로도 강관 제품의 품질과 신뢰성을 높이는 데 중요한 역할을 수행하며, 관련 제품 표준과의 연계성을 통해 더욱 폭넓은 적용 가능성을 가지고 있습니다. 결과적으로, EN 10266:2003은 강관 및 구조용 부재에 대한 명확하고 일관된 기호와 용어를 제시함으로써, 관련 산업 전반에서 매우 중요한 표준으로 자리잡고 있습니다. 이러한 점에서 이 표준은 현대 산업에서 제품의 명확한 정의와 표준화의 필요성을 충족하는 데 필수적입니다.
La norme EN 10266:2003 est une référence essentielle dans le domaine des tubes en acier, des raccords et des sections creuses structurelles en acier. Son champ d'application est clairement défini, fournissant des symboles et des définitions de termes nécessaires à l'élaboration de normes pour les produits en acier mentionnés. Cela en fait un outil précieux pour les professionnels de l'industrie, garantissant une compréhension homogène des terminologies utilisées. L'un des points forts de cette norme est sa capacité à normaliser la communication au sein du secteur, contribuant à réduire les ambiguïtés qui pourraient autrement conduire à des malentendus lors de la fabrication et de l'utilisation de ces produits. En précisant les symboles et les définitions, EN 10266:2003 permet d'améliorer l'efficacité et la sécurité, notamment au niveau des échanges techniques entre les acteurs du marché. De plus, la pertinence de la norme EN 10266:2003 réside dans sa compatibilité avec d'autres normes européennes, en renforçant l'idée d'un cadre réglementaire harmonisé. Bien que l'accent soit mis sur les produits en acier, elle mentionne également l'existence d'autres normes, comme EN ISO 9000, pour ceux qui nécessitent des définitions non spécifiques aux produits tubulaires. Cela démontre une intention d'intégration dans le système de normalisation existant, facilitant ainsi l'accès aux informations pour les utilisateurs et les concepteurs. En somme, la norme EN 10266:2003 est un document fondamental qui établit des bases solides pour l'utilisation cohérente des symboles et des termes dans le secteur des tubes et raccords en acier, favorisant ainsi une meilleure compréhension dans les pratiques industrielles.
Die EN 10266:2003 bietet eine umfassende Norm für die Bezeichnung und Definition von Begriffen, die in Produktstandards für Stahlrohre, Armaturen und Stahlhohlprofile verwendet werden. Diese Norm ist besonders relevant für Fachleute im Bereich der Stahlindustrie, da sie klare und einheitliche Symbole bereitstellt, die für die Kommunikation und den Austausch von Informationen unerlässlich sind. Ein herausragendes Merkmal dieser Norm ist ihre Fähigkeit, eine einheitliche Sprache innerhalb der Branche zu fördern. Dies stellt sicher, dass alle Beteiligten dieselben Begriffe verstehen, was Missverständnisse und Fehler bei der Kommunikation von Spezifikationen reduziert. Die standardisierten Symbole vereinfachen zudem den Zugang zu technischen Dokumentationen und Produktinformationen. Ein weiterer Vorteil der EN 10266:2003 ist ihre spezifische Ausrichtung auf Produkte, die in der Bau- und Maschinenbauindustrie verwendet werden. Durch die Definition geeigneter Begriffe wird eine solide Basis geschaffen, die die Entwicklung weiterer spezifischer Normen ermöglicht. Die Verwendung dieser Norm unterstützt die Harmonisierung von Produktstandards in Europa und trägt zu einer höheren Qualität und Sicherheit in der Konstruktion bei. Darüber hinaus ist es wichtig zu beachten, dass die Norm darauf hinweist, dass für Begriffe, die nicht spezifisch für Rohrprodukte sind, andere relevante Normen wie die EN ISO 9000 konsultiert werden sollten. Dies zeigt die Notwendigkeit einer integrierten Betrachtung verschiedener Normen, um ein vollständiges Verständnis der verwendeten Terminologie zu gewährleisten. Insgesamt stellt die EN 10266:2003 eine bedeutende Quelle für die Definition von Begriffen und Symbolen dar, die für Stahlrohre, -armaturen und -hohlprofile von wesentlicher Bedeutung sind. Ihre Stärken liegen in der klaren Struktur, der Anpassungsfähigkeit an verschiedene Produktstandards und der Unterstützung der internationalen Normung in der Stahlindustrie.
EN 10266:2003は、鋼製チューブ、継手及び構造用中空セクションに関する符号と用語の定義を提供する欧州規格であり、製品標準に使用するための基盤を構築しています。この標準は、鋼チューブおよび関連する製品の誤解を避けるために、重要な役割を果たしています。 この規格の強みは、鋼製製品に特有の用語を明確に定義している点です。これにより、業界内での共通理解が促進され、製造業者や使用者の間で一貫したコミュニケーションが可能になります。EN 10266:2003における用語の標準化は、特に国際的な取引やエンジニアリングプロジェクトにおいて、取引先との誤解を防ぐ助けとなります。 また、この規格は、鋼製チューブや継手の設計および製造において不可欠な指針を提供しています。具体的には、使用する符号や用語の一貫性を確保することで、品質管理や製品の信頼性向上にも寄与します。このような規格は、特にEN ISO 9000などの他の関連規格と組み合わせて活用することで、製品の信頼性と品質を向上させる土台となります。 EN 10266:2003は、鋼製製品の標準化において重要な役割を果たし、業界全体での理解と信頼性を向上させるための基礎を提供しています。この文書は、製品標準における用語の明確化を通じて、製造プロセス全体における効率性と品質の向上に寄与しています。
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