SIST EN 4658:2011

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 ≥ 1520 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  200 mm
Rm  1 520 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 ≥ 1520 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 ≥ 1520 MPa

Cette Norme européenne 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 >= 1 520 MPa
pour applications aérospatiales

Aeronavtika - Jeklo FE-PM1507 (X1CrNiMoAlTi12-11-2) - Izkovki a ali D ≤ 200 mm - Rm ≥ 1520 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 > = 1520 MPa
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 18-Oct-2011
• ICS: 49.025.10 - Steels
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Oct-2011
• Due Date: 19-Dec-2011
• Completion Date: 19-Oct-2011
• Ref Project: EN 4658:2010 - 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 ≥ 1 520 MPa

Overview

EN 4658:2010 (CEN) defines the specification for aerospace-grade steel FE-PM1507 (X1CrNiMoAlTi12-11-2) supplied as forgings. The standard covers material chemistry, melting route, heat treatments, mechanical properties and inspection requirements for vacuum induction melted (VIM) and consumable electrode remelted (ESR) forgings with nominal cross-section or diameter a or D ≤ 200 mm and a minimum tensile strength Rm ≥ 1 520 MPa.

Key topics and technical requirements

• Material designation & chemistry: FE-PM1507 (X1CrNiMoAlTi12-11-2). Typical composition limits include C ≤ 0.015%, Cr ≈ 11–12.5%, Ni ≈ 10.25–11.25%, Mo ≈ 1.75–2.25%, Al ≈ 1.35–1.75%, Ti ≈ 0.20–0.50%, N ≈ 0.01% (rest Fe).
• Melting methods: Vacuum induction melted (VIM) and consumable electrode remelted (ESR) to control cleanliness and inclusion content.
• Forms & sizes: Forgings produced from qualified forging stock; limit dimension a or D ≤ 200 mm.
• Heat treatment / delivery conditions:
  • Solution treated (840–860 °C / 2 h / water quench + sub-zero treatment).
  • Solution treated + precipitation treated (ageing 525–545 °C for ≥ 8 h / air cool).
  • Delivery condition codes W (solution treated) and U (solution + precipitation treated).
• Mechanical properties:
  • Proof stress Rp0.2 ≥ 1 380 MPa (where applicable).
  • Tensile strength Rm ≥ 1 520 MPa.
  • Elongation A ≥ 10%; reduction of area Z ≥ 50% (some conditions ≥ 40%).
  • Hardness: specified limits depending on heat treatment (e.g., ≤ 363 HB in softened condition and ≥ 426 HB after precipitation treatment).
  • Impact requirements: T-direction KV ≥ 30 J and L-direction KV ≥ 25 J at ambient temperature.
• Microstructure & cleanliness:
  • δ-ferrite content ≤ 2%.
  • Cleanliness (micro-cleanness) to an agreed category (document indicates Category 5).
  • Grain size and macro/microstructural inspection per EN 4700-006.

Applications and who uses this standard

• Used by aerospace material engineers, forging manufacturers, procurement teams, quality/inspection departments, and certification bodies.
• Typical applications include high-strength, corrosion-resistant aerospace components where compact forgings with very high tensile strength and controlled toughness are required (landing gear subcomponents, flight-critical fittings, highly loaded structural parts).
• EN 4658 is intended for contracts where traceable metallurgy, VIM/ESR melting and stringent heat-treatment/inspection controls are required.

Related standards

• EN 4670 - Forging stock for FE-PM1507 (softened condition)
• EN 4700-006 - Technical specification for pre-production and production forgings
• EN 2043 - Qualification requirements for semi-finished product
• EN 4258 / EN 4500-5 - Organization and drafting rules for aerospace metallic material standards

Keywords: EN 4658:2010, FE-PM1507, X1CrNiMoAlTi12-11-2, aerospace steel, vacuum induction melted, consumable electrode remelted, forgings, solution treated, precipitation treated, Rm ≥ 1 520 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 4658:2010SIST EN 4658:2011en01-december-2011SIST EN 4658:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4658
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 ≥ 1 520 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 ≥ 1 520 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 ≥ 1 520 MPa This European Standard was approved by CEN on 9 July 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 4658:2010: ESIST EN 4658:2011
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