EN 2439:2009
(Main)Aerospace series - Steel FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Forgings - De ≤ 40 mm
Aerospace series - Steel FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Forgings - De ≤ 40 mm
This standard specifies the requirements relating to:
Steel FE-PL2102 (34NiCr6)
900 MPa < or = Rm < or = 1 100 MPa
Forgings
De < or = 40 mm
for aerospace applications.
Luft- und Raumfahrt - Stahl FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Gesenk-und Freiformschmiedestücke - De ≤ 40 mm
Diese Norm legt die Anforderungen an
Stahl FE-PL2102 (35NiCr6)
900 MPa ≤ Rm ≤ 1 100 MPa
Gesenk- und Freiformschmiedestücke
De ≤ 40 mm
für Anwendungen in der Luft- und Raumfahrt fest.
Série aérospatiale - Acier FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Pièces forgées et matricées - De ≤ 40 mm
Aeronavtika - Jeklo FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1100 MPa - Izkovki - De ≤ 40 mm
General Information
- Status
- Published
- Publication Date
- 10-Feb-2009
- Withdrawal Date
- 30-Aug-2009
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 4 - Metallic
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2025
- Completion Date
- 21-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 2439:2009 is a CEN aerospace series standard that specifies material, processing and test requirements for steel FE-PL2102 (34NiCr6 / 35NiCr6) forgings intended for aerospace use. It covers forgings with an external diameter (De) ≤ 40 mm and a tensile strength range of 900 MPa ≤ Rm ≤ 1 100 MPa. The standard is part of the EN metallic materials series and links to related aerospace material rules and technical specifications.
Key topics and requirements
- Material designation: FE-PL2102 (noted in the document as 34NiCr6 and in one clause as 35NiCr6).
- Chemical composition (typical ranges): C 0.30–0.37%, Si 0.10–0.40%, Mn 0.60–0.90%, Cr 0.80–1.10%, Ni 1.20–1.60% (Fe balance).
- Form and size: Forgings, De ≤ 40 mm.
- Melting method: Air melted.
- Delivery conditions:
- Softened (code A)
- Hardened and tempered (code U) - reference heat treatment: quench at (850 ± 10) °C / oil quench (OQ) followed by temper at (565 ± 5) °C / OQ (tempering must be followed by oil quenching).
- Mechanical properties:
- Tensile strength Rm: 900–1 100 MPa.
- Proof stress Rp0.2: ≥ 750 MPa (hardened and tempered).
- Elongation A: ≥ 14%.
- Hardness: typical ranges given in HB/HV; for De ≤ 5 mm HV is used (e.g., HV 284–350 for certain conditions).
- Hardenability (Jominy): Specified HRC minima/maxima at distances (5, 9, 15, 25, 40 mm) to evaluate hardenability profile.
- Testing & inspection: Test piece and sampling rules reference EN 4700-6; dimensional and marking inspection also follow that specification.
Applications and users
- Typical use: High-strength, low-alloy steel forgings for aerospace structural and mechanical components where compact, high-strength parts are required.
- Who uses this standard: Aerospace materials engineers, forging manufacturers, quality/inspection teams, procurement specialists, and designers specifying high-strength steel forgings for aircraft and aerospace systems.
- Practical value: Ensures consistent chemical, mechanical and heat-treatment characteristics for small-diameter high-strength forgings, facilitating interchangeability, reliable performance and regulatory compliance in aerospace supply chains.
Related standards
- EN 4258 - Organization of aerospace metallic material standards.
- EN 4500-5 - Rules for drafting/presentation of steel material standards.
- EN 4700-6 - Technical specification for pre-production and production forgings (referenced for testing, inspection and production details).
Keywords: EN 2439:2009, FE-PL2102, 34NiCr6, aerospace steel forgings, 900–1100 MPa, forgings ≤40 mm, hardened and tempered, Jominy hardenability.
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Frequently Asked Questions
EN 2439:2009 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Steel FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Forgings - De ≤ 40 mm". This standard covers: This standard specifies the requirements relating to: Steel FE-PL2102 (34NiCr6) 900 MPa < or = Rm < or = 1 100 MPa Forgings De < or = 40 mm for aerospace applications.
This standard specifies the requirements relating to: Steel FE-PL2102 (34NiCr6) 900 MPa < or = Rm < or = 1 100 MPa Forgings De < or = 40 mm for aerospace applications.
EN 2439:2009 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2439:2009 has the following relationships with other standards: It is inter standard links to EN 4258:2024, EN 2327:2006, EN 7010:2020. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2439:2009 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 2439:2009SIST EN 2439:2009en01-maj-2009SIST EN 2439:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2439
February 2009 ICS 49.025.10 English Version
Aerospace series - Steel FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Forgings - De ≤ 40 mm
Série aérospatiale - Acier FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Pièces forgées et matricées - De ≤ 40 mm
Luft- und Raumfahrt - Stahl FE-PL2102 (34NiCr6) - 900 MPa ≤ Rm ≤ 1 100 MPa - Gesenk-und Freiformschmiedestücke - De ≤ 40 mm This European Standard was approved by CEN on 24 August 2008.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2439:2009: ESIST EN 2439:2009
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