SIST EN 4263:2014

Aerospace series - Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) - As forged - Forging stock - a or D ≤ 200 mm - 690 MPa ≤ Rm ≤ 960MPa

This standard specifies the requirements relating to:
Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20)
As forged
Forging stock
a or D  200 mm
690 MPa  Rm  960 MPa
for aerospace applications.

Luft- und Raumfahrt - Hochwarmfeste Legierung FE-PA4901 (X12CrNiCoMoW21-20) - Nicht wärmebehandelt — Schmiedevormaterial - a oder D ≤ 200 mm - 690 MPa ≤ Rm ≤ 960 MPa

Diese Norm legt die Anforderungen an
Hochwarmfeste Legierung FE-PA4901 (X12CrNiCoMoW21-20) Nicht wärmebehandelt Schmiedevormaterial a oder D ≤ 200 mm 690 MPa ≤ Rm ≤ 960 MPa
zur Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Alliage résistant à chaud FE-PA4901 (X12CrNiCoMoW21-20) - Non traité - Produits destinés à la forge - a ou D ≤ 200mm - 690 MPa ≤ Rm ≤ 960MPa

Cette Norme européenne spécifie les exigences relatives à :
Alliage résistant à chaud FE-PA4901 (X12CrNiCoMoW21-20)
Non traité
Produits destinés à la forge
a ou D  200 mm
690 MPa  Rm  960 MPa
pour applications aérospatiales.

Aeronavtika - Toplotno odporna zlitina FE-PA4901 (X12CrNiCoMoW21-20) - Toplotno neobdelana (nekovana) - Kovni material - a ali D ≤ 200 mm - 690 MPa ≤ Rm ≤ 960 MPa

General Information

• Status: Published
• Publication Date: 10-Feb-2014
• ICS: 49.025.05 - Ferrous alloys in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 23-Dec-2013
• Due Date: 27-Feb-2014
• Completion Date: 11-Feb-2014
• Ref Project: EN 4263:2013 - Aerospace series - Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) - As forged - Forging stock - a or D ≤ 200 mm - 690 MPa ≤ Rm ≤ 960MPa

Relations

• Revised: SIST EN 4163:2010 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - 1100 MPa (at ambient temperature)/235 °C
• Effective Date: 01-Mar-2014

Overview

EN 4263:2013 is a CEN aerospace standard that specifies requirements for the heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) in the as‑forged condition for forging stock with a or D ≤ 200 mm. The standard applies to high‑strength, heat‑resisting ferrous alloy forgings intended for aerospace applications, and defines mechanical property limits, delivery condition, inspection and qualification rules for this alloy grade.

Key topics and technical requirements

• Material designation: FE-PA4901 (X12CrNiCoMoW21-20); air melted.
• Form / size: Forging stock, as forged; maximum section a or D ≤ 200 mm.
• Strength range: Tensile strength Rm between 690 MPa and 960 MPa.
• Proof stress: Rp0,2 ≥ 345 MPa.
• Ductility: Elongation A ≥ 30%; elongation at rupture after ageing ≥ 8%.
• Hardness: 192 ≤ HB ≤ 241.
• High‑temperature (creep/ageing) requirement: After exposure at 730 °C for ≥100 h, rupture stress σR = 165 MPa (as specified) with corresponding elongation requirement.
• Delivery condition code: U (as forged). Heat treatment/solution treatment and any post‑forge operations are referenced to the manufacturing schedule and to EN 2860‑2.
• Inspection & defects: External/internal defect classification, macrostructure and dimensional/marking inspections are addressed by reference to EN 2860‑2 and EN 2043; product qualification programs are agreed between manufacturer and purchaser.
• Chemical composition (summary ranges): C 0.08–0.16 %, Si ≤1.00 %, Mn ≤2.00 %, P ≤0.040 %, S ≤0.030 %, Co ~18.5–22.5 %, Cr ~20.0–22.5 %, Mo ~2.5–3.5 %, Nb ~0.75–1.25 %, Ni ~19.0–21.0 %, N ≤0.20 %, W ~2.0–3.0 % (base Fe).

(For full technical tables and exact compositional limits, consult the standard document.)

Practical applications and who uses this standard

• Used by aerospace materials engineers, forging manufacturers, quality/inspection teams, and procurement specialists involved in specifying and producing high‑temperature ferrous forgings.
• Applicable where robust mechanical strength and heat resistance are required in relatively small forgings (a or D ≤ 200 mm) for aerospace components exposed to elevated temperatures.
• Helps ensure consistent mechanical properties (Rm, Rp0.2, hardness, elongation), traceability and agreed inspection/qualification between suppliers and OEMs.

Related standards

• EN 2860‑2 (Forging stock technical specification)
• EN 2043 (General requirements for semi‑finished product qualification)
• EN 4258 (Organization of aerospace metallic material standards)
• EN 4500‑003 (Rules for drafting heat resisting alloy standards)

EN 4263:2013 provides a focused specification for FE‑PA4901 forging stock, enabling consistent production and qualification of high‑strength, heat‑resisting ferrous parts for aerospace use.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.49.025.05Železove zlitine na splošnoFerrous alloys in generalICS:Ta slovenski standard je istoveten z:EN 4263:2013SIST EN 4263:2014en01-marec-2014SIST EN 4263:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4263
July 2013 ICS 49.025.01 English Version
Aerospace series - Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) - As forged - Forging stock - a or D ≤ 200 mm - 690 MPa ≤ Rm ≤ 960MPa
Série aérospatiale - Alliage résistant à chaud FE-PA4901 (X12CrNiCoMoW21-20) - Non traité - Produits destinés à la forge - a ou D ≤ 200mm - 690 MPa ≤ Rm ≤ 960MPa
Luft- und Raumfahrt - Hochwarmfeste Legierung FE-PA4901 (X12CrNiCoMoW21-20) - Nicht wärmebehandelt - Schmiedevormaterial - a oder D ≤ 200 mm - 690 MPa ≤ Rm≤ 960 MPa This European Standard was approved by CEN on 8 May 2013.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
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B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4263:2013: ESIST EN 4263:2014
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