SIST EN 4884:2023
(Main)Aerospace series - Steel X3CrNiMoAl (1.4534) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Bars for machining - a or D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa
Aerospace series - Steel X3CrNiMoAl (1.4534) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Bars for machining - a or D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa
This document specifies the requirements relating to:
Steel X3CrNiMoAl (13-8-2)
Vacuum induction melted and consumable electrode remelted
Solution treated and precipitation treated
Bars for machining
a or D ≤ 200 mm
1 200 MPa ≤ Rm ≤ 1 350 MPa
for aerospace applications.
Material no (W.L): 1.4534.
Luft- und Raumfahrt - Stahl X3CrNiMoAl (1.4534) - Vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und ausscheidungsgehärtet - Stangen für die Bearbeitung - a oder D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa
Dieses Dokument legt die Anforderungen an:
Stahl X3CrNiMoAl (1.4534)
vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode umgeschmolzen
lösungsgeglüht und ausscheidungsgehärtet
Stangen zur spanenden Bearbeitung
a oder D ≤ 200 mm
1 200 MPa ≤ Rm ≤ 1 350 MPa
für Anwendungen in der Luft und Raumfahrt fest.
Série aérospatiale - Acier X3CrNiMoAl (1.4534) - Élaboré sous vide par induction et refondu à l'électrode consommable - Mis en solution et précipité - Barres pour usinage - a ou D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa
Le présent document spécifie les exigences relatives à :
Acier X3CrNiMoAl (13-8-2)
Élaboré sous vide par induction et refondu à l'électrode consommable
Mis en solution et précipité
Barres pour usinage
a ou D ≤ 200 mm
1 200 MPa ≤ Rm ≤ 1 350 MPa
pour les applications aérospatiales.
No de matériau (W.L) : 1.4534.
Aeronavtika - Jeklo X3CrNiMoAl (1.4534) - Indukcijsko taljeno v vakuumu in pretaljeno s taljivo elektrodo - Topilno žarjena in izločevalno utrjena - Palice za obdelavo - a ali D ≤ 200 mm - 1200 MPa ≤ Rm ≤ 1350 MPa
Ta dokument določa zahteve, ki se navezujejo na:
jeklo X3CrNiMoAl (13-8-2),
indukcijsko taljeno v vakuumu in pretaljeno s taljivo elektrodo,
topilno žarjeno in izločevalno utrjeno,
palice za obdelavo,
a ali D ≤ 200 mm,
1200 MPa ≤ Rm ≤ 1350 MPa,
za uporabo v aeronavtiki.
Št. materiala (W.L): 1.4534.
General Information
Overview
SIST EN 4884:2023 is a European standard specifying the technical requirements for aerospace-grade Steel X3CrNiMoAl (material number 1.4534). This steel is produced by vacuum induction melting and consumable electrode remelting, followed by solution treatment and precipitation hardening. It covers bars for machining with diameters (a or D) up to 200 mm, ensuring a high tensile strength range of 1,200 MPa to 1,350 MPa. Developed by the Aerospace and Defence Industries Association of Europe (ASD-STAN) and approved by CEN, this standard ensures the steel meets stringent aerospace industry criteria for mechanical and metallurgical properties.
The document is crucial for manufacturers, suppliers, and engineers involved in the aerospace sector, ensuring reliable and consistent steel quality for critical machined components.
Key Topics
- Material Composition: Specifies chemical elements including minimum and maximum quotas for carbon, silicon, manganese, phosphorus, sulfur, chromium (12.25-13.25%), molybdenum (2.0-2.5%), nickel (7.5-8.5%), aluminum (0.90-1.35%), and nitrogen limits.
- Manufacturing Process: Requires vacuum induction melting and consumable electrode remelting to ensure high purity and uniformity.
- Heat Treatment: Defines solution treatment temperatures between 900°C and 950°C with specified cooling regimes and subsequent precipitation treatment at 550°C to 570°C to optimize strength and toughness.
- Mechanical Properties:
- Tensile strength (Rm): 1,200 - 1,350 MPa
- Proof stress (Rp0.2): ≥ 1,150 MPa
- Elongation: ≥ 10%
- Reduction of area: ≥ 45-50% depending on bar size
- Hardness: 38 ≤ HRC ≤ 43 (Rockwell hardness)
- Impact toughness tested at ambient and -30°C for notch toughness assurance
- Microstructure Requirements: Fine grain size (G ≥ 5 to 6 depending on bar diameter), maximum δ ferrite content of 3%, and defined inclusion classification (category 3).
- Inspection and Testing: Visual testing for surface imperfections, ultrasonic testing for internal defects, dimensional inspection, and marking per standards referenced (EN 4700-002, AMS 2315).
Applications
SIST EN 4884:2023 addresses the aerospace industry’s demand for high-strength, corrosion-resistant steel bars suited for precision machining. The steel X3CrNiMoAl is often utilized in:
- Structural aerospace components requiring high tensile strength and fatigue resistance.
- Landing gear parts, actuating mechanisms, and high-stress engine components.
- Critical machined parts where dimensional stability, toughness, and reliability under stress are mandatory.
- Aerospace manufacturing processes where materials must meet strict metallurgical and mechanical standards to ensure safety and performance.
Using steel bars conforming to SIST EN 4884:2023 enhances quality control and traceability while ensuring compliance with rigorous aerospace performance standards.
Related Standards
SIST EN 4884:2023 is part of a broader series of aerospace metallic materials standards and references several related documents, including:
- EN 4700-002: Aerospace series - Steel and heat-resisting alloys - Technical specifications for bars and sections.
- EN 4258: General organization of standardization for aerospace metallic materials, explaining how this standard integrates within the overall classification.
- EN 4500-005: Specific rules for drafting and presentation of steel material standards within aerospace applications.
- AMS 2315: Standard for determining delta ferrite content in steels, relevant for quality control in steel microstructure.
Compliance with SIST EN 4884:2023 together with these related standards ensures comprehensive material performance and compatibility in aerospace engineering.
Keywords: SIST EN 4884:2023, aerospace steel standard, X3CrNiMoAl steel, vacuum induction melted steel, precipitation treated steel, aerospace bars for machining, high-strength steel, tensile strength 1200-1350 MPa, aerospace material standards, steel bars for aerospace, CEN aerospace steel.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2023
Aeronavtika - Jeklo X3CrNiMoAl (1.4534) - Indukcijsko taljeno v vakuumu in
pretaljeno s taljivo elektrodo - Topilno žarjena in izločevalno utrjena - Palice za
obdelavo - a ali D ≤ 200 mm - 1200 MPa ≤ Rm ≤ 1350 MPa
Aerospace series - Steel X3CrNiMoAl (1.4534) - Vacuum induction melted and
consumable electrode remelted - Solution treated and precipitation treated - Bars for
machining - a or D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa
Luft- und Raumfahrt - Stahl X3CrNiMoAl (1.4534) - Vakuuminduktionserschmolzen und
mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und
ausscheidungsgehärtet - Stangen für die Bearbeitung - a oder D ≤ 200 mm - 1 200 MPa
≤ Rm ≤ 1 350 MPa
Série aérospatiale - Acier X3CrNiMoAl (1.4534) - Élaboré sous vide par induction et
refondu à l'électrode consommable - Mis en solution et précipité - Barres pour usinage -
a ou D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa
Ta slovenski standard je istoveten z: EN 4884:2022
ICS:
49.025.10 Jekla Steels
77.140.60 Jeklene palice in drogovi Steel bars and rods
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 4884
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 49.025.10
English Version
Aerospace series - Steel X3CrNiMoAl (1.4534) - Vacuum
induction melted and consumable electrode remelted -
Solution treated and precipitation treated - Bars for
machining - a or D 200 mm - 1 200 MPa Rm 1 350
MPa
Série aérospatiale - Acier X3CrNiMoAl (1.4534) - Luft- und Raumfahrt - Stahl X3CrNiMoAl (1.4534) -
Élaboré sous vide par induction et refondu à l'électrode Vakuuminduktionserschmolzen und mit
consommable - Mis en solution et précipité - Barres selbstverzehrender Elektrode umgeschmolzen -
Lösungsgeglüht und ausscheidungsgehärtet - Stangen
pour usinage - a ou D 200 mm - 1 200 MPa Rm 1
350 MPa für die Bearbeitung - a oder D 200 mm - 1 200 MPa
Rm 1 350 MPa
This European Standard was approved by CEN on 22 August 2022.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4884:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 5
Bibliography . 9
European foreword
This document (EN 4884:2022) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this
document has received the approval of the National Associations and the Official Services of the
member countries of ASD, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such
patent rights.
Any feedback and questions on this document should be directed to the users’ national standards
body. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries
...
Frequently Asked Questions
SIST EN 4884:2023 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Steel X3CrNiMoAl (1.4534) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Bars for machining - a or D ≤ 200 mm - 1 200 MPa ≤ Rm ≤ 1 350 MPa". This standard covers: This document specifies the requirements relating to: Steel X3CrNiMoAl (13-8-2) Vacuum induction melted and consumable electrode remelted Solution treated and precipitation treated Bars for machining a or D ≤ 200 mm 1 200 MPa ≤ Rm ≤ 1 350 MPa for aerospace applications. Material no (W.L): 1.4534.
This document specifies the requirements relating to: Steel X3CrNiMoAl (13-8-2) Vacuum induction melted and consumable electrode remelted Solution treated and precipitation treated Bars for machining a or D ≤ 200 mm 1 200 MPa ≤ Rm ≤ 1 350 MPa for aerospace applications. Material no (W.L): 1.4534.
SIST EN 4884:2023 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels; 77.140.60 - Steel bars and rods. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase SIST EN 4884:2023 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
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