EN 4470:2007
(Main)Aerospace series - Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 150 mm - Rm ≥ 1 200 MPa
Aerospace series - Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 150 mm - Rm ≥ 1 200 MPa
This standard specifies the requirements relating to:
Steel FE-PM1505 (X1CrNiMoAlTi12-9-2)
Vacuum induction melted and consumable electrode remelted
Solution treated and precipitation treated
Forgings
a or D ≤ 150 mm
Rm ≥ 1 200 MPa
for aerospace applications.
Luft- und Raumfahrt - Stahl FE-PM1505 (X1CrNiMoAlTi12-9-2) - Vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und ausgehägert - Schmiedestücke - a oder D ≤ 150 mm - Rm ≥ 1 200 MPa
Diese Norm legt die Anforderungen an
Stahl FE PM1505 (X1CrNiMoAlTi12-9-2)
Vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen
Lösungsgeglüht und ausgehärtet
Schmiedestücke
a oder D 150 mm
Rm ≥ 1 200 MPa
für Anwendungen in der Luft- und Raumfahrt fest.
Série aérospatiale - Acier FE-PM1505 (X1CrNiMoAlTi12-9-2) - Élaboré sous vide par induction et refondu à l'électrode consommable - Mis en solution et vieilli - Pièces forgées et pièces matricées - a ou D ≤ 150 mm - Rm ≥ 1 200 MPa
Aeronavtika - Jeklo FE-PM1505 (X1CrNiMoAlTi12-9-2) - Izkovki a ali D ≤ 150 mm - Rm ≥ 1200 MPa, taljeni z vakuumsko indukcijo in pretaljeni s talilno elektrodo, žarjeni v topilu in utrjeni
General Information
- Status
- Published
- Publication Date
- 10-Jul-2007
- Withdrawal Date
- 30-Jan-2008
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 4 - Metallic
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 30-Jun-2017
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 4470:2007 is a CEN aerospace series standard that specifies requirements for steel FE-PM1505 (X1CrNiMoAlTi12-9-2) used for high-strength forgings in aerospace applications. The standard covers material designation, permitted melting and remelting routes, required heat treatments, dimensional limits (a or D ≤ 150 mm) and mechanical property thresholds, notably a minimum tensile strength Rm ≥ 1 200 MPa.
This standard is intended for manufacturers and purchasers of aerospace forgings where consistent, reproducible mechanical performance and high integrity are required.
Key Topics
- Material designation: FE-PM1505 (X1CrNiMoAlTi12-9-2) - a martensitic/ferritic stainless alloy formulation used in aerospace forgings.
- Melting and remelting methods: Vacuum induction melting combined with consumable electrode remelting to ensure low inclusions and improved cleanliness.
- Form and limits: Forgings produced from forging stock with maximum cross-section dimension a or D ≤ 150 mm.
- Heat treatment: Solution treated and optionally precipitation treated. Typical heat treatment windows are defined to achieve the required microstructure and mechanical properties.
- Mechanical properties: Minimum tensile strength Rm ≥ 1 200 MPa and proof stress Rp0,2 ≥ 1 100 MPa in the specified delivery/use conditions. Elongation, reduction of area and hardness limits are specified to ensure ductility and toughness.
- Testing and inspection: Test-piece selection, dimensional and marking inspections, internal and external defect acceptance and batch uniformity follow the referenced technical specifications (EN 4700-6 and EN 4346 where applicable).
Practical value: EN 4470:2007 provides a clear acceptance framework for material producers and airframe manufacturers to ensure FE-PM1505 forgings meet consistent strength, toughness and metallurgical quality for demanding aerospace use.
Applications
- Structural components and high-load parts in aircraft and aerospace systems where high tensile strength (Rm ≥ 1 200 MPa) and reliable performance are required.
- Critical forgings that benefit from vacuum induction melting and consumable electrode remelting to reduce inclusions and increase fatigue life.
- Parts requiring controlled solution and precipitation heat treatment to achieve specified mechanical and microstructural characteristics.
Related Standards
- EN 4258 - General organisation of aerospace metallic material standards and linkage between EN types.
- EN 4346 - FE-PM1505 softened forging stock (related material form and production guidance).
- EN 4500-5 - Rules for drafting and presentation of steels in the aerospace series.
- EN 4700-6 - Technical specification for pre-production and production forgings; referenced for test samples and production controls.
For procurement and qualification, manufacturers and purchasers should agree product qualification programmes and refer to the cited EN documents for sampling, inspection and production-forging rules. EN 4470:2007 ensures a harmonised baseline for high-strength FE-PM1505 forgings used in aerospace systems.
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Frequently Asked Questions
EN 4470:2007 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 150 mm - Rm ≥ 1 200 MPa". This standard covers: This standard specifies the requirements relating to: Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) Vacuum induction melted and consumable electrode remelted Solution treated and precipitation treated Forgings a or D ≤ 150 mm Rm ≥ 1 200 MPa for aerospace applications.
This standard specifies the requirements relating to: Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) Vacuum induction melted and consumable electrode remelted Solution treated and precipitation treated Forgings a or D ≤ 150 mm Rm ≥ 1 200 MPa for aerospace applications.
EN 4470:2007 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 4470:2007 has the following relationships with other standards: It is inter standard links to EN 4258:2024, EN 4700-006:2025, EN 4346:2007, EN 4632-004:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 4470:2007 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.03D49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 4470:2007SIST EN 4470:2009en,de01-maj-2009SIST EN 4470:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4470
July 2007 ICS 49.025.10 English Version
Aerospace series - Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 150 mm - Rm ≥ 1 200 MPa
Série aérospatiale - Acier FE-PM1505 (X1CrNiMoAlTi12-9-2) - Élaboré sous vide par induction et refondu à l'électrode consommable - Mis en solution et vieilli - Pièces forgées et pièces matricées - a ou D ≤ 150 mm - Rm ≥ 1 200 MPa
Luft- und Raumfahrt - Stahl FE-PM1505 (X1CrNiMoAlTi12-9-2) - Vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und ausgelagert - Schmiedestücke - a oder D ≤ 150 mm - Rm ≥ 1 200 MPa This European Standard was approved by CEN on 15 February 2007.
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: rue de Stassart, 36
B-1050 Brussels © 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4470:2007: ESIST EN 4470:2009
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