EN 4659:2010

Aerospace series - Steel FE-PM1507 (X1CrNiMoAlTi12-11-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 200 mm - Rm ≥ 1 650 MPa

This standard specifies the requirements relating to:
Steel FE-PM1507 (X1CrNiMoAlTi12-11-2)
Vacuum induction melted and consumable electrode remelted
Solution  treated and precipitation treated
Forgings
a or D Rm >or= 1 650 MPa
for aerospace applications.

Luft- und Raumfahrt - Stahl FE-PM1507 (X1CrNiMoAlTi12-11-2) - Vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und ausgelagert - Schmiedestücke - a oder D ≤ 200 mm - Rm ≥ 1 650 MPa

Série aérospatiale - Acier FE-PM1507 (X1CrNiMoAlTi12-11-2) - Élaboré sous vide par induction et refondu à l'électrode consommable - Mis en solution et vieilli - Pièces forgées et pièces matricées - a ou D ≤ 200 mm - Rm ≥ 1 650 MPa

La présente norme spécifie les exigences relatives à :
Acier FE-PM1507 (X1CrNiMoAlTi12-11-2)
Élaboré sous vide par induction et refondu à l’électrode consommable
Mis en solution et vieilli
Pièces forgées et pièces matricées
a ou D  200 mm
Rm  1 650 MPa
pour applications aérospatiales.

Aeronavtika - Jeklo FE-PM1507 (X1CrNiMoAlTi12-11-2) - Izkovki a ali D ≤ 200 mm - Rm ≥ 1650 MPa, taljeni z vakuumsko indukcijo in pretaljeni s talilno elektrodo, žarjeni v topilu in utrjeni

Ta standard določa zahteve, ki se nanašajo na:
jeklo FE-PM1507 (X1CrNiMoAlTi12-11-2);
taljene z vakuumsko indukcijo in pretaljene s talilno elektrodo
žarjene v topilu in utrjene
izkovke
a ali D < = 200 mm
Rm > = 1 650 MPa
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 21-Dec-2010
• Withdrawal Date: 29-Jun-2011
• ICS: 49.025.10 - Steels
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 22-Dec-2010
• Completion Date: 22-Dec-2010
• Ref Project: SIST EN 4659:2011 - Aerospace series - Steel FE-PM1507 (X1CrNiMoAlTi12-11-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 200 mm - Rm ≥ 1 650 MPa

Relations

• Refers: EN 4700-006:2025 - Aerospace series - Steel and heat-resisting alloys for wrought products - Technical specification - Part 006: Pre-production and production forgings
• Effective Date: 28-Jan-2026
• Refers: EN 4670:2010 - Aerospace series - Steel FE-PM1507 (X1CrNiMoAlTi12-11-2) - Vacuum induction melted and consumable electrode remelted - Softened - Forging stock - a or D ≤ 300 mm
• Effective Date: 28-Jan-2026
• Refers: EN 4258:2024 - Aerospace series - Metallic materials - General organization of standardization - Link between types of European Standards and their use
• Effective Date: 28-Jan-2026

Overview

EN 4659:2010 is a CEN aerospace material standard that defines requirements for Steel FE-PM1507 (X1CrNiMoAlTi12-11-2) manufactured by vacuum induction melting (VIM) and consumable electrode remelting (CE). It covers forgings with a or D ≤ 200 mm, delivered solution treated or solution + precipitation treated, intended for high‑strength aerospace applications with a minimum tensile strength of Rm ≥ 1 650 MPa.

Key topics and technical requirements

• Material designation: FE‑PM1507 (X1CrNiMoAlTi12-11-2).
• Melting/processing: Vacuum induction melted and consumable electrode remelted.
• Forms covered: Forgings forged from EN 4670 forging stock, maximum section a or D ≤ 200 mm.
• Heat treatments:
  • Solution treatment: 840–860 °C / 2 h / water quench + sub‑zero to θ − 75 °C / 8 h.
  • Precipitation (ageing) option: above plus 500–520 °C / t ≥ 8 h / air cool (use condition).
• Mechanical properties:
  • Proof stress Rp0.2 ≥ 1 520 MPa.
  • Tensile strength Rm ≥ 1 650 MPa.
  • Elongation A ≥ 10% (solution treated) or ≥ 8% (use/precipitation treated).
  • Reduction of area Z ≥ 45% (solution treated) or ≥ 35% (use condition).
  • Hardness: ≤ 363 HB (solution treated) and ≥ 448 HB (precipitation treated) as applicable.
• Impact: Notched impact energy at ambient - T direction KV ≥ 15 J; L direction KV ≥ 10 J.
• Microstructure/cleanliness: δ‑ferrite content ≤ 2%; grain size typically G ≥ 6 (some G = 5 accepted); inclusion cleanliness and macrostructure per EN 4700‑006.
• Testing and inspection: Test pieces, heat‑treatment verification, and dimensional/marking inspections are specified; qualification programme to be agreed per EN 2043.

Applications and who uses it

EN 4659:2010 is used by:

• Aerospace materials engineers specifying high‑strength steel forgings for structural or safety‑critical components.
• Forging manufacturers and heat‑treatment shops producing FE‑PM1507 forgings.
• Procurement and quality assurance teams verifying material conformity, acceptance testing, and certification for aerospace supply chains.
• Design and certification authorities requiring documented mechanical, microstructural and heat‑treatment controls for components where Rm ≥ 1 650 MPa is required.

Typical practical application: specification and acceptance of high‑strength aerospace forgings where controlled melting, remelting and ageing produce repeatable mechanical and microstructural properties.

Related standards

• EN 4700‑006 (technical specification for pre‑production and production forgings)
• EN 4670 (forging stock for FE‑PM1507)
• EN 2043 (qualification of semi‑finished products)
• EN 4258, EN 4500‑5 (general EN aerospace material organization and drafting rules)

Keywords: EN 4659:2010, FE‑PM1507, X1CrNiMoAlTi12‑11‑2, vacuum induction melted, consumable electrode remelted, solution treated, precipitation treated, aerospace forgings, Rm 1650 MPa.

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 4659:2010SIST EN 4659:2011en01-maj-2011SIST EN 4659:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4659
December 2010 ICS 49.025.10 English Version
Aerospace series - Steel FE-PM1507 (X1CrNiMoAlTi12-11-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 200 mm - Rm ≥ 1 650 MPa
Série aérospatiale - Acier FE-PM1507 (X1CrNiMoAlTi12-11-2) - Élaboré sous vide par induction et refondu à l'électrode consommable - Mis en solution et vieilli - Pièces forgées et pièces matricées - a ou D ≤ 200 mm - Rm ≥ 1 650 MPa
Luft- und Raumfahrt - Stahl FE-PM1507 (X1CrNiMoAlTi12-11-2) - Vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und ausgelagert - Schmiedestücke - a oder D ≤ 200 mm - Rm ≥ 1 650 MPa This European Standard was approved by CEN on 7 August 2010.
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-CENELEC 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-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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
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B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4659:2010: ESIST EN 4659:2011
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