EN 10315:2006

Routine method for analysis of high alloy steel by X-ray Fluorescence Spectrometry (XRF) by using a near by technique

This European Standard specifies a procedure on how to improve the performance of a routine XRF method, already in use for analysis of high alloy steels, by using a ”near by technique”.
The ”near by technique” requires at least one target sample (preferable a CRM) of a similar composition as the unknown sample.
The method is applicable to elements within the concentration ranges according to Table 1:
Table 1 — Concentration ranges
Element   Concentration range, % (m/m) a
Si   0,05 to 1,5
Mn   0,05 to 5,0
P   0,005 to 0,035
Cr   10 to 25
Ni   0,1 to 30
Mo   0,1 to 6,5
Cu   0,02 to 1,5
Co   0,015 to 0,30
V   0,015 to 0,15
Ti   0,015 to 0,50
Nb   0,05 to 1,0
a   The concentration ranges specified, represents those ranges studied during the precision test. The procedure has the potential to be used outside those ranges but it needs to be validated by each laboratory in every case.
The method is applicable to analysis of either chill-cast or wrought samples having a diameter of at least 25 mm and with a carbon concentration of less than 0,3 % (see NOTE). Other elements should have a concentration below 0,2 %.
NOTE   High carbon concentrations, in combination with high Mo and Cr concentrations, could have undesirable structural effects on the sample and could affect the determination of phosphorus and chromium, in particular.
Matrix effects exist between the elements listed. To compensate for those inter-element effects, mathematical corrections shall be applied. A variety of computer programs for corrections is commonly used and included in the software package from the manufacturers.

Standardverfahren zur Analyse von hochlegiertem Stahl mittels Röntgenfluoreszenzspektroskopie (RFA) unter Anwendung eines Vergleichs-Korrekturverfahrens

Méthode de routine pour l´analyse des aciers fortement alliés par spectrométrie de fluorescence de rayons X (SFRX) à l´aide d´une méthode de correction

La présente norme européenne spécifie un mode opératoire permettant d'établir une méthode de routine pour l'analyse des aciers fortement alliés par spectrométrie de fluorescence de rayons X. La justesse de la méthode peut encore être améliorée en utilisant une "correction". La "correction" nécessite au moins un matériau de référence certifié (MRC) de composition similaire à l'échantillon inconnu.

Rutinska metoda za analiziranje močnolegiranih jekel z rentgensko fluorescenčno spektrometrijo (XRF) ob uporabi primerjalnega korekturnega postopka

General Information

• Status: Published
• Publication Date: 18-Jul-2006
• Withdrawal Date: 30-Jan-2007
• ICS: 77.040.30 - Chemical analysis of metals
• ICS: 77.140.20 - Stainless steels
• Technical Committee: ECISS/TC 102 - Methods of chemical analysis for iron and steel
• Drafting Committee: ECISS/TC 102 - Methods of chemical analysis for iron and steel
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 24-Nov-2020
• Completion Date: 23-Sep-2025
• Mandate: M/005 - Mandate to CEN/ECISS concerning standardization in the iron and steel sector
• Ref Project: SIST EN 10315:2006 - Routine method for analysis of high alloy steel by X-ray Fluorescence Spectrometry (XRF) by using a near by technique

Overview

EN 10315:2006 (CEN) specifies a routine procedure to improve the performance of wavelength-dispersive X‑ray fluorescence spectrometry (XRF) for the analysis of high alloy steels by using a near‑by technique. The near‑by technique uses at least one target sample - preferably a Certified Reference Material (CRM) - whose composition is similar to the unknown to correct measured concentrations and compensate for matrix and instrumental effects. The standard is intended for routine laboratory and production-quality control where XRF is already in use.

Key topics and technical requirements

• Scope & applicability
  • Elements and concentration ranges studied (m/m):
    • Si: 0.05–1.5% | Mn: 0.05–5.0% | P: 0.005–0.035%
    • Cr: 10–25% | Ni: 0.1–30% | Mo: 0.1–6.5%
    • Cu: 0.02–1.5% | Co: 0.015–0.30% | V: 0.015–0.15%
    • Ti: 0.015–0.50% | Nb: 0.05–1.0%
  • Applicable to chill‑cast or wrought samples ≥ 25 mm diameter, thickness ≥ 5 mm, C < 0.3%; other elements normally < 0.2%.
  • The listed ranges reflect precision testing; use outside these ranges requires laboratory validation.
• Near‑by technique
  • Correction is made by measuring a CRM of closely matching composition and applying the difference between certified and measured values to the unknown sample.
  • The standard defines how to sequence CRM and unknown measurements and references closeness requirements (see standard Clause 13.2).
• Apparatus & setup
  • Wavelength‑dispersive XRF spectrometer (simultaneous or sequential), Rh X‑ray tube recommended.
  • Crystals: LiF(200) and PE (for light elements); additional crystals (LiF220, Ge) may be used.
  • Detectors: scintillation for heavy elements and gas‑flow proportional (or sealed) for light elements; vacuum < 40 Pa; sample spinner recommended.
• Sample preparation
  • Uniform, clean surface (surface grinder with ~180‑grit Al2O3 or equivalent); mirror finish recommended for standards; clean with pure ethanol.
• Calibration, standardization, SPC
  • Initial calibration, regular standardization (every ~6–8 h or per SPC), and control charts (±2s warning, ±3s action) are required. Matrix corrections (software-based) must be applied for inter‑element effects.

Applications and users

• Quality control and routine chemical analysis in:
  • Steel producers and stainless steel mills
  • Metallurgical and materials testing laboratories
  • Inspection bodies and certification laboratories
  • XRF instrument manufacturers and service engineers (method implementation and validation)
• Typical uses: rapid compositional checks, grade verification, incoming/outgoing inspection, production process control.

Related standards

• EN ISO 14284 (sampling & prep)
• CR 10299 (XRF calibration guidelines)
• ISO/EN methods for individual elements (Si, Mn, P, Ti, Ni, etc.) cited in the normative references for validation and cross‑checks.

Keywords: EN 10315, XRF, X‑ray fluorescence, near‑by technique, high alloy steel, CRM, calibration, standardization, SPC, matrix correction.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Routine method for analysis of high alloy steel by X-ray Fluorescence Spectrometry (XRF) by using a near by techniqueNDMéthode de routine pour l´analyse des aciers fortement alliés par spectrométrie de fluorescence de rayons X (SFRX) a l´aide d´une méthode de correctionStandardverfahren zur Analyse von hochlegiertem Stahl mittels Röntgenfluoreszenzspektroskopie (RFA) unter Anwendung eines Vergleichs-KorrekturverfahrensTa slovenski standard je istoveten z:EN 10315:2006SIST EN 10315:2006en77.140.20Visokokakovostna jeklaStainless steels77.040.30Kemijska analiza kovinChemical analysis of metalsICS:SLOVENSKI
STANDARDSIST EN 10315:200601-oktober-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10315July 2006ICS 77.040.30; 77.140.20 English VersionRoutine method for analysis of high alloy steel by X-rayFluorescence Spectrometry (XRF) by using a near by techniqueMéthode de routine pour l´analyse des aciers fortementalliés par spectrométrie de fluorescence de rayons X(SFRX) à l´aide d´une méthode de correctionStandardverfahren zur Analyse von hochlegiertem Stahlmittels Röntgenfluoreszenzspektroskopie (RFA) unterAnwendung eines Vergleichs-KorrekturverfahrensThis European Standard was approved by CEN on 24 May 2006.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10315:2006: E

Precision.12 Annex B (normative)
Graphical representation of precision data.17 Bibliography.28

The method is applicable to analysis of either chill-cast or wrought samples having a diameter of at least 25 mm and with a carbon concentration of less than 0,3 % (see NOTE). Other elements should have a concentration below 0,2 %. NOTE High carbon concentrations, in combination with high Mo and Cr concentrations, could have undesirable structural effects on the sample and could affect the determination of phosphorus and chromium, in particular. Matrix effects exist between the elements listed. To compensate for those inter-element effects, mathematical corrections shall be applied. A variety of computer programs for corrections is commonly used and included in the software package from the manufacturers. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 10280, Steel and iron — Determination of titanium content — Diantipyrylmethane spectrophotometric method (ISO 10280:1991)
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