Non destructive testing - Ultrasonic testing of steel bars

Part 5 of this document, in addition to part 1, specifies requirements for flat and long products of hot rolled steels with improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3 (chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as given in 6.3.
The thicknesses in which products of the steel grades and qualities specified in this document may be supplied are given in Table 1.
In addition to EN 10025-1:2004 the steels specified in this document are especially intended for use in welded, bolted and riveted components which shall have enhanced resistance to atmospheric corrosion, for service at ambient temperatures (subject to the restrictions described in 7.4.1).
The steels specified in this Part 5 are not intended to be heat treated except products delivered in the delivery condition +N. Stress relief annealing is permitted (see also the NOTE in 7.3.1.1 of EN 10025-1:2004). Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3).

Zerstörungsfreie Prüfung - Ultraschallprüfung von Stäben aus Stahl

Diese Europäische Norm legt ein Verfahren für die manuelle Ultraschall-Impuls-Echo-Prüfung von Stäben aus Stahl mit einem Durchmesser oder einer gleichwertigen Dicke bis 400 mm fest. Mechanisierte, halbautomatische und automatische Techniken dürfen angewendet werden, sollten aber zwischen Besteller und Lieferer vereinbart werden.

Essais non destructifs - Contrôle par ultrasons des barres en acier

La présente norme européenne spécifie les méthodes manuelles de contrôle par ultrasons et par réflexion des barres en acier de diamètre ou épaisseur inférieur ou égal à 400 mm. Les techniques mécanisées, semi-automatisées ou automatisées peuvent être utilisées mais il convient qu'elles fassent l'objet d'un accord entre fournisseur et acheteur.

Neporušitveno preskušanje - Ultrazvočno preskušanje jeklenih palic

General Information

Status
Published
Publication Date
13-Nov-2001
Withdrawal Date
30-May-2002
ICS
77.040.20 - Non-destructive testing of metals
 
77.140.60 - Steel bars and rods
Technical Committee
ECISS/TC 101 - Test methods for steel (other than chemical analysis)
Drafting Committee
ECISS/TC 2 - Steel - Physico-chemical and non-destructive testing
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Start Date
02-Dec-2025
Completion Date
02-Dec-2025
Ref Project
SIST EN 10308:2002 - Non destructive testing - Ultrasonic testing of steel bars

Overview

EN 10308:2001 - "Non destructive testing - Ultrasonic testing of steel bars" is a CEN European Standard that defines the technical requirements and procedures for manual pulse‑echo ultrasonic testing (UT) of steel bars and equivalent sections up to 400 mm diameter or equivalent thickness. The standard covers equipment, calibration, scanning techniques, sensitivity setting, recording and acceptance, and personnel qualification - and allows mechanised or automatic methods when agreed between purchaser and supplier.

Key topics and requirements

  • Scope: Manual pulse‑echo ultrasonic testing of steel bars (mechanised/automatic allowed by agreement). Single‑side testing using the first back‑wall echo.
  • Principle: Detection and evaluation of discontinuities by comparing echo amplitudes to reference flat‑bottomed holes (FBH) and sizing by the –6 dB beam‑width technique.
  • Equipment:
    • Instruments with A‑scan presentation (EN 12668‑1).
    • Probes: nominal frequency 1–6 MHz; largest transducer dimension typically 9–25 mm. Double transducer probes usable up to 150 mm bars; single transducers for bars > 60 mm.
    • Calibration and reference blocks per EN 12223; reference FBH tolerance ±5% on diameter.
    • Couplant: water commonly used; same couplant for calibration and scanning.
  • Calibration & sensitivity:
    • Routine calibration per EN 12668‑3.
    • Sensitivity set using DAC (Distance Amplitude Curve) or DGS techniques (see EN 583‑5).
  • Scanning:
    • Two coverage options: grid scanning (scan lines per table) or complete scanning (overlap ≥ 10% of transducer diameter).
    • Surface must be free from paint, loose scale or contaminants that impair coupling.
  • Procedure & reporting:
    • UT must follow a written procedure; purchaser/supplier must agree on stage of manufacture, coverage, quality class, acceptance levels, sizing methods, and whether purchaser will witness tests.
  • Personnel: Recommended qualification/certification per EN 473 (or equivalent).

Applications

EN 10308 is used to ensure internal quality and integrity of steel bars and rods before further processing or delivery. Typical applications:

  • Quality control at steel mills and rolling plants
  • Incoming inspection at fabricators and machine shops
  • Final inspection of bar stock for construction, forging, machining and assembly
  • Acceptance testing where traceable UT calibration and documented procedures are required

Who uses this standard

  • NDT technicians and supervisors
  • Quality engineers and inspectors in steel production and fabrication
  • Purchasing/specification engineers who define acceptance criteria
  • Third‑party inspection bodies and certification organizations

Related standards (normative references)

  • EN 12668‑1 / EN 12668‑2 / EN 12668‑3 (equipment and probe verification)
  • EN 12223 (calibration block)
  • EN 583‑2, EN 583‑5 (UT sensitivity, characterization/sizing)
  • EN 473 (NDT personnel certification)

Keywords: EN 10308, ultrasonic testing, non‑destructive testing, NDT, steel bars, pulse‑echo, calibration, DAC, DGS, A‑scan.

Frequently Asked Questions

EN 10308:2001 is a standard published by the European Committee for Standardization (CEN). Its full title is "Non destructive testing - Ultrasonic testing of steel bars". This standard covers: Part 5 of this document, in addition to part 1, specifies requirements for flat and long products of hot rolled steels with improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3 (chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as given in 6.3. The thicknesses in which products of the steel grades and qualities specified in this document may be supplied are given in Table 1. In addition to EN 10025-1:2004 the steels specified in this document are especially intended for use in welded, bolted and riveted components which shall have enhanced resistance to atmospheric corrosion, for service at ambient temperatures (subject to the restrictions described in 7.4.1). The steels specified in this Part 5 are not intended to be heat treated except products delivered in the delivery condition +N. Stress relief annealing is permitted (see also the NOTE in 7.3.1.1 of EN 10025-1:2004). Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3).

Part 5 of this document, in addition to part 1, specifies requirements for flat and long products of hot rolled steels with improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3 (chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as given in 6.3. The thicknesses in which products of the steel grades and qualities specified in this document may be supplied are given in Table 1. In addition to EN 10025-1:2004 the steels specified in this document are especially intended for use in welded, bolted and riveted components which shall have enhanced resistance to atmospheric corrosion, for service at ambient temperatures (subject to the restrictions described in 7.4.1). The steels specified in this Part 5 are not intended to be heat treated except products delivered in the delivery condition +N. Stress relief annealing is permitted (see also the NOTE in 7.3.1.1 of EN 10025-1:2004). Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3).

EN 10308:2001 is classified under the following ICS (International Classification for Standards) categories: 77.040.20 - Non-destructive testing of metals; 77.140.60 - Steel bars and rods. The ICS classification helps identify the subject area and facilitates finding related standards.

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Standards Content (Sample)


SLOVENSKI STANDARD
01-junij-2002
Neporušitveno preskušanje - Ultrazvočno preskušanje jeklenih palic
Non destructive testing - Ultrasonic testing of steel bars
Zerstörungsfreie Prüfung - Ultraschallprüfung von Stäben aus Stahl
Essais non destructifs - Contrôle par ultrasons des barres en acier
Ta slovenski standard je istoveten z: EN 10308:2001
ICS:
77.040.20 Neporušitveno preskušanje Non-destructive testing of
kovin metals
77.140.60 Jeklene palice in drogovi Steel bars and rods
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 10308
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2001
ICS 77.040.20; 77.140.60
English version
Non destructive testing - Ultrasonic testing of steel bars
Essais non destructifs - Contrôle par ultrasons des barres Zerstörungsfreie Prüfung - Ultraschallprüfung von Stäben
en acier aus Stahl
This European Standard was approved by CEN on 30 September 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10308:2001 E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions.4
4 Items for agreements.5
5 Principle.5
6 Procedure .6
7 Personnel qualification .6
8 Ultrasonic test equipment.7
8.1 Instrument.7
8.2 Probe .7
8.3 Calibration blocks.7
8.4 Reference blocks .7
8.5 Couplant.7
9 Routine calibration and checking .8
10 Stage of manufacture .8
11 Surface condition.8
12 Sensitivity setting .8
13 Scanning.8
13.1 General.8
13.2 Grid scanning coverage .8
13.3 Complete scanning coverage.8
13.4 Scanning speed.9
14 Classification.9
14.1 Classification of indications .9
14.2 Classification of discontinuities.11
15 Recording level and acceptance criteria .12
16 Sizing.14
17 Test report .14
Annex A (informative) List of equivalent terms in several European languages .15
Bibliography .16
Foreword
This European Standard has been prepared by Technical Committee ECISS/TC 2 "Steel - Physico-chemical and
non-destructive testing", the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by May 2002, and conflicting national standards shall be withdrawn at the latest by
May 2002.
Annex A is informative.
This standard includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
1 Scope
This European Standard describes the techniques to be used for the manual, pulse-echo, ultrasonic testing of steel
bars of diameter or equivalent thickness less or equal to 400 mm or equivalent section. Mechanised,
semi-automatic or automatic techniques may be used but should be agreed between the purchaser and the
supplier.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 473, Non destructive testing - Qualification and certification of NDT personnel – General principles.
EN 583-2, Non-destructive testing - Ultrasonic examination - Part 2: Sensitivity and range setting.
EN 583-5, Non-destructive testing - Ultrasonic examination - Part 5: Characterization and sizing of discontinuities.
EN 1330-4, Non destructive testing - Terminology - Part 4: Terms used in ultrasonic testing.
EN 12223, Non-destructive testing - Ultrasonic examination - Specification for calibration block n°1.
EN 12668-1, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part
1: Instruments.
EN 12668-2, Non-destructive testing - Characterization and verification of ultrasonic examination equipment – Part
2: Probes.
EN 12668-3, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part
3: Combined equipment.
3 Terms and definitions
Definitions for general terms of non-destructive testing can be found in other European Standards, e.g. EN 1330-1
and EN 1330-2. For the purposes of this European Standard, the following terms and definitions given in EN 1330-
4 apply, together with the following.
3.1
manual testing
testing by an operator applying an ultrasonic probe, or probes, to the product surface, manually executing the
appropriate scanning pattern on the product surface and assessing ultrasonic signal indications on the electronic
equipment screen either by direct viewing or by built-in signal amplitude alarm devices
3.2
automatic and semi-automatic testing
testing using a mechanised means of applying the ultrasonic probe or probes to, and executing the appropriate
scanning pattern on the flat product surface, together with ultrasonic signal indication evaluation by electronic
means
NOTE Such testing can be either fully automatic with no operator involvement, or semi-automatic when the operator
performs basic equipment operation functions.
A list of equivalent terms in several European languages in given in annex A.
4 Items for agreements
The following aspects concerning ultrasonic testing shall be agreed between the purchaser and supplier at the time
of the enquiry or order:
a) the manufacturing stage(s) at which ultrasonic testing shall be performed (see clause 10);
b) the volume(s) to be tested and whether grid scanning coverage or complete scanning coverage is required
(see clause 13);
c) the Quality Class required, or the Quality Classes and the zones to which they apply (see clause 15);
d) the applicable evaluation level and acceptance criteria if different from those detailed in Tables 2 and 3;
e) whether any special scanning coverage, equipment or couplant is required in addition to that detailed in
clauses 8 and 13;
f) the scanning technique to be used if not manual;
g) the sizing techniques to be used for extended discontinuities (see clause 16);
h) the technique(s) to be used for setting sensitivity (see clause 12);
i) whether the test is to be conducted in the presence of the purchaser or his representative;
j) whether a written procedure shall be submitted for approval by the purchaser (see clause 6).
5 Principle
The method used is based on the reflection of ultrasonic waves (generally longitudinal), the direction of which is
approximately perpendicular to the surface of the product. The examination consists of:
a) locating and evaluation of discontinuity by comparing the amplitude of the discontinuity echo with the
amplitude of the echo of a flat-bottomed hole of a given diameter and located at the same depth as the
discontinuity.
NOTE Only those discontinuities giving an echo in amplitude equal to or greater than that obtained with the reference flat-
bottomed hole are taken into consideration.
b) determining the area of the discontinuity according to the – 6 dB beam width technique.
If areas with particular permeability are located, the testing conditions shall be adjusted in order to test these areas
with the required sensitivity level.
The examination is carried out during the first ultrasonic scan (first back wall echo) for all the product thicknesses or
diameter and from one side only.
6 Procedure
The inspection is normally carried out in the place of production or on the premises of the supplier. If specified on
1)
the order, the inspection may take place in the presence of the purchaser or his representative .
Ultrasonic testing shall be performed in accordance with a written procedure. Where specified in the enquiry or
order, the written procedure shall be submitted to the purchaser for approval prior to testing.
Th
...


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.FZerstörungsfreie Prüfung - Ultraschallprüfung von Stäben aus StahlEssais non destructifs - Contrôle par ultrasons des barres en acierNon destructive testing - Ultrasonic testing of steel bars77.140.60Jeklene palice in drogoviSteel bars and rods77.040.20Neporušitveno preskušanje kovinNon-destructive testing of metalsICS:Ta slovenski standard je istoveten z:EN 10308:2001SIST EN 10308:2002en01-junij-2002SIST EN 10308:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10308November 2001ICS 77.040.20; 77.140.60English versionNon destructive testing - Ultrasonic testing of steel barsEssais non destructifs - Contrôle par ultrasons des barresen acierZerstörungsfreie Prüfung - Ultraschallprüfung von Stäbenaus StahlThis European Standard was approved by CEN on 30 September 2001.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,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10308:2001 ESIST EN 10308:2002

List of equivalent terms in several European languages.15Bibliography.16SIST EN 10308:2002
...

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SIST EN 10308:2002는 비파괴 검사 및 강철봉의 초음파 검사에 관한 표준으로, 특히 경량 및 긴 제품에 대한 요구사항을 규정하고 있습니다. 본 문서의 5부는 방청성능이 개선된 열간 압연 강철의 넓이와 길이에 대한 요구사항을 자세히 설명하며, 이는 화학 성분 및 기계적 성질에 대한 표를 통해 명확히 제시됩니다. 이 표준의 주요 강점은 대기 중 부식에 대한 저항력을 개선한 강철 제품을 위한 명확한 지침을 제공한다는 점입니다. 즉, 6.3절에서 제시된 일반적인 인도 조건에 맞춰 고온 및 대기 조건에서 서비스할 수 있는 제품을 설계할 수 있도록 도움을 줍니다. 특히, 본 문서는 용접, 볼트 결합 및 리벳팅 구성 요소에 사용하기 적합하며, 최적의 내구성을 갖춘 제품 생산을 위한 기초를 마련합니다. 또한, 본 표준은 열처리를 받지 않는 것이 원칙이지만, +N 조건으로 공급되는 제품의 경우 핫 포밍 및/또는 정규화가 가능하다는 유연성을 제공합니다. 이러한 점은 다양한 산업에서의 적용성을 더욱 높여 줄 수 있습니다. 따라서 SIST EN 10308:2002는 강철봉의 비파괴 검사와 관련하여 매우 중요한 표준으로, 방청능력이 뛰어난 강철 제품의 품질과 안전성을 보장하는 데 필수적인 가이드라인을 제공합니다. 이러한 특성 덕분에 이 표준은 강철 제품의 성능을 보장하고, 제조 및 건축 산업에서의 신뢰성을 높이는 데 기여할 수 있습니다.

The EN 10308:2001 standard, specifically focusing on non-destructive testing through ultrasonic testing of steel bars, offers a comprehensive framework for assessing the reliability and safety of hot-rolled steel products. This standard is significant in its scope as it targets flat and long products that demonstrate improved atmospheric corrosion resistance, catering to various grades and qualities specified in detailed tables within the document. One of the key strengths of EN 10308:2001 lies in its precise articulation of chemical composition and mechanical properties, found in Tables 2 through 5. These specifications ensure manufacturers and users of steel bars adhere to high-quality standards that contribute to structural integrity. The inclusion of thicknesses in Table 1 further clarifies the range of products that can be supplied, aiding manufacturers in meeting diverse project requirements. Moreover, EN 10308:2001 emphasizes the intended applications of these steel products, particularly for welded, bolted, and riveted components that require enhanced resistance to atmospheric corrosion under ambient temperature conditions. Such clear guidance allows for better-informed decisions regarding material selection in construction and industrial applications. Additionally, the stipulations regarding heat treatment are noteworthy. The standard outlines that the steels are not typically intended for heat treatment, except for those delivered in the specific condition +N. This fosters consistency in product performance while still allowing for stress relief annealing when necessary. The provision for hot forming and normalizing of products in +N condition indicates flexibility in manufacturing processes while maintaining adherence to quality assurance protocols. Overall, the relevance of EN 10308:2001 is underscored by its focus on non-destructive testing methods that ensure the dependability of steel bars in critical applications. Its robust guidelines and detailed specifications provide essential support for industry stakeholders aiming to achieve optimal safety and durability in their structures.

標準EN 10308:2001は、鋼棒の非破壊試験である超音波試験に関する重要な仕様を提供しています。この文書の第5部では、落とし文を含む熱間圧延鋼のフラット製品および長製品に対する要件が具体的に定められています。特に、大気腐食抵抗が改善されたグレードおよび品質に関する詳細が表2および表3（化学組成）および表4および表5（機械的特性）に記載されています。 この標準の強みは、環境条件に適したサービスを提供する焊接、ボルト接合、リベット接合部品に対して、強化された耐大気腐食性を有する鋼材を使用するための明確な基準を示している点です。表1には、この文書で指定された鋼グレードおよび品質の製品が供給される厚さが示されています。 また、EN 10025-1:2004との関連において、+Nの供給条件で納品される製品を除き、ここで指定される鋼は熱処理を対象としないことが明記されています。ストレスリリーフアニーリングが許可されていますが、+N条件で納品された製品は、納品後に熱形成や正規化が可能であるとされています。 このため、EN 10308:2001は、鋼材における非破壊試験の標準化を通じて、材料の信頼性と耐久性を向上させるための重要な基盤となっており、非常に関連性の高い文書です。この標準は、業界全体において高品質の製品を確保するための指針を提供し、製造プロセスの堅牢性を確保するために不可欠な役割を果たします。

Die Norm EN 10308:2001 ist ein essentieller Leitfaden für die zerstörungsfreie Prüfung von Stahllängsprodukten und bietet eine detaillierte und spezifische Herangehensweise an die Ultraschallprüfung von Stahlstäben. Der Umfang dieser Norm ist klar umrissen und fokussiert sich auf flache und lange Produkte aus warmgewalzten Stählen mit verbesserter Widerstandsfähigkeit gegen atmosphärische Korrosion. Dies ist insbesondere relevant für die spezifischen Güten und Eigenschaften, die in den Tabellen 2 und 3 (chemische Zusammensetzung) sowie in den Tabellen 4 und 5 (mechanische Eigenschaften) aufgeführt sind. Ein herausragendes Merkmal der EN 10308:2001 ist ihre Anwendbarkeit auf geschweißte, geschraubte und genietete Komponenten, die in Umgebungen mit erhöhtem Korrosionsrisiko eingesetzt werden. Dies verdeutlicht die Relevanz dieser Norm in der Praxis, wo Materialien oft extremen Wetterbedingungen ausgesetzt sind und die Notwendigkeit für eine erhöhte Lebensdauer unumstritten ist. Die Vorgaben zur Lieferung und die Angabe der materialtechnischen Eigenschaften sind klar und präzise formuliert. Insbesondere die Regelung, dass die in dieser Norm spezifizierten Stähle grundsätzlich nicht wärmebehandelt werden, außer in der Lieferbedingung +N, stellt sicher, dass die Integrität und die gewünschten physikalischen Eigenschaften der Materialien gewahrt bleiben. Die Erlaubnis zur Spannungsfreilassung annealing und die Optionen für warmes Formen oder Normalisieren nach der Lieferung bieten den Anwendern zusätzliche Flexibilität. Zusammenfassend lässt sich sagen, dass die EN 10308:2001 eine robuste Wesensart der Normung in der metallverarbeitenden Industrie darstellt. Die im Dokument festgelegten Standards fördern nicht nur die Qualität und Sicherheit von Stahlprodukten, sondern tragen auch zur Effizienz und Langlebigkeit von Bau- und Konstruktionsprojekten bei, bei denen Korrosionsbeständigkeit von oberster Priorität ist.

La norme EN 10308:2001, intitulée "Essai non destructif - Essai ultrasonore des barres d'acier", offre une approche rigoureuse et bien structurée pour l'évaluation de la qualité des produits en acier, en particulier pour ceux qui présentent une résistance améliorée à la corrosion atmosphérique. Cette norme est cruciale pour les utilisateurs de matériaux en acier, car elle définit les exigences spécifiques pour les produits plats et longs en aciers laminés à chaud. Le périmètre d'application de cette norme englobe les aciers selon leurs compositions chimiques et propriétés mécaniques, précisé dans les tableaux 2 à 5. Ces éléments offrent une référence claire et accessible, contribuant ainsi à assurer le respect des critères de qualité durant la fabrication et la mise en œuvre des produits en acier. En ce qui concerne les dimensions, la norme fournit, dans le tableau 1, des informations précises sur les épaisseurs pouvant être fournies, garantissant ainsi une flexibilité et une adaptabilité aux différents besoins industriels. L'un des principaux atouts de la EN 10308:2001 réside dans son établissement de critères clairs pour les aciers utilisés dans les composants soudés, boulonnés et rivetés, qui doivent présenter une résistance accrue à la corrosion atmosphérique. Cela est particulièrement pertinent pour les applications à température ambiante, où un maintien de la performance et de la durabilité est essentiel. De plus, il est important de souligner que cette norme indique que les aciers ne doivent pas être traités thermiquement, à l'exception des produits livrés en condition +N, ce qui simplifie le processus de sélection et de traitement pour les fabricants. La possibilité d'effectuer un recuit de relaxation de contraintes, ainsi que les précisions fournies sur les conditions de transformation des produits livrés dans un état normalisé, accentuent encore sa pertinence. Cela ouvre la voie à une utilisation de ces aciers dans divers processus, y compris la mise en forme à chaud. En somme, la EN 10308:2001 se distingue par sa clarté, sa cohérence et son adaptation aux besoins des utilisateurs. Elle constitue un outil essentiel pour assurer que les produits en acier répondent aux normes de qualité et de performance exigées, en particulier dans des environnements où la résistance à la corrosion est indispensable.

The EN 10308:2001 standard provides a comprehensive framework for the ultrasonic testing of steel bars, focusing specifically on those with improved atmospheric corrosion resistance. Its scope is well-defined, addressing the requirements for flat and long products of hot rolled steels, categorized according to their chemical composition and mechanical properties detailed in the designated tables. This structure enables clear identification of the properties necessary for compliance and ensures that users can easily reference the relevant sections for practical application. One of the key strengths of this standard lies in its focus on enhancing the serviceability of steel products in environments prone to atmospheric corrosion. The inclusion of detailed tables that specify grades and qualities enhances clarity and usability, while guidelines for thickness further solidify its practical relevance in various industrial applications. The emphasis on products being suitable for welded, bolted, and riveted components indicates its significance in construction and manufacturing sectors where structural integrity is paramount. Moreover, the stipulation that steels specified in this document are not intended for heat treatment, except in certain conditions, streamlines the testing and application processes, ensuring that users understand the limitations and capabilities of the materials. The allowance for stress relief annealing illustrates a balanced approach to addressing both the manufacturing processes and the physical properties required in service. Overall, EN 10308:2001 stands out as a robust standard that integrates essential guidelines for ultrasonic testing while aligning with broader industry standards like EN 10025-1. Its relevance is underscored by the thorough criteria it sets forth for steel bars intended for critical applications, ensuring that users can confidently select materials that meet stringent performance expectations under ambient temperature conditions.

SIST EN 10308:2002に関するレビューは、非破壊検査の分野における超音波検査の重要性と、その適用範囲の明確性を強調しています。この規格は、特に耐大気腐食性に優れた熱間圧延鋼の平形および長尺製品に焦点を当てており、化学組成や機械的特性に関する具体的な要件が表形式で提供されています。特に、表2および表3には、鋼材の等級や品質が詳細に示されており、利用者が鋼材の選定に迷わずに済むよう配慮されています。 EN 10308:2001は、溶接、ボルト留め、リベット留めの部品に使用される鋼材に特化しており、これらの部品が大気腐食に対して強化された耐性を持つことを保証します。この点は、特に屋外で使用される構造物にとって重要です。さらに、この規格で指定された鋼材は、常温での使用を想定しており、使用環境に適合する鋼材が提供されていることは、実践的な利点をもたらします。 また、プレッシャーについても、EN 10025-1:2004を補完する形で、鋼材の熱処理に関するガイドラインが明記されており、特に+N条件で提供される製品の取り扱いに関して詳細な指示が示されている点が評価されます。これは、鋼材の製造後の処理や調整がいかに行われるべきかを明確にし、適切な使用を促進する要因となっています。 全体として、SIST EN 10308:2002は、非破壊検査における超音波技術の適用を通じて、鋼材の質と性能を保証するための信頼できる基準であり、その有用性が期待される分野での実践的な指針としての役割を果たしています。この標準の構造や内容は、鋼材業界における品質管理と安全性の向上に寄与するものであり、業界の専門家にとって重要なリファレンスとなるでしょう。

SIST EN 10308:2002 표준 문서는 비파괴 검사 방법 중 하나인 초음파 검사를 통해 강봉의 품질을 평가하는 데 중점을 두고 있습니다. 이 표준의 적용 범위는 핫 롤링 강재의 평면 및 긴 제품에 대한 요구 사항을 명시하여, 대기 부식에 대한 저항력이 향상된 강재의 화학적 조성과 기계적 특성을 확인할 수 있도록 설정되어 있습니다. 표준의 강점 중 하나는 테이블 2와 3에서 제시된 화학 조성과 테이블 4와 5에서 제공하는 기계적 특성을 바탕으로, 사용자가 필요로 하는 특정 강재의 등급과 품질을 쉽게 이해하고 적용할 수 있도록 돕는 점입니다. 특히, 7.4.1항에서 설명한 제한 조건에 따라 대기온도에서 용접, 볼트 또는 리벳으로 결합된 부품으로 사용하기 위해 특별히 설계된 강재를 포함하고 있습니다. 또한, 이 문서에서는 +N 조건으로 제공되는 제품에 한하여 열처리를 허용하고 있지만, 일반적으로 열처리를 하지 않는 강재를 명시하고 있어 사용자가 이 표준을 통해 적절한 강재 선택에 대한 신뢰성을 높일 수 있습니다. 표준은 사용자가 수급 상황을 고려하여 적절한 두께의 강재 제품을 선택하는 데 필요한 정보를 테이블 1에 제공함으로써, 실제 적용에 있어서의 실용성을 극대화하고 있습니다. 결론적으로, EN 10308:2001 표준은 초음파 검사를 통해 강봉의 품질을 확인하고 대기 부식 저항력이 향상된 강재를 사용함으로써, 다양한 산업 분야에서의 안전성과 내구성을 높일 수 있는 중요한 지침을 제공합니다. 이를 통해 표준이 갖는 시의성과 중요성을 더욱 부각시킵니다.