SIST EN 4628:2023
(Main)Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted - Hardened and tempered - Bars - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted - Hardened and tempered - Bars - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
This document specifies the requirements relating to:
Steel X4CrNiMo16-5-1 (1.4418)
Air melted
Hardened and tempered
Bars
De ≤ 200 mm
1 150 MPa ≤ Rm ≤ 1 300 MPa
for aerospace applications.
NOTE Other common designations:
- AIR: Z 8 CND 17-04.
- Only the chemical composition according to this document is considered.
Luft- und Raumfahrt - Stahl X4CrNiMo16-5-1 (1.4418) - Lufterschmolzen - Gehärtet- und angelassen - Stangen - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
Dieses Dokument legt die Anforderungen an:
Stahl X4CrNiMo16 5 1 (1.4418)
lufterschmolzen
gehärtet und angelassen
Stangen
De ≤ 200 mm
1 150 MPa ≤ Rm ≤ 1 300 MPa
für Anwendungen in der Luft und Raumfahrt fest.
ANMERKUNG Weitere übliche Bezeichnungen:
AIR: Z 8 CND 17 04.
Es wird nur die chemische Zusammensetzung in diesem Dokument berücksichtigt.
Série aérospatiale - Acier X4CrNiMo16-5-1 (1.4418) - Élaboré à l'air - Trempé et revenu - Barres - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
Le présent document spécifie les exigences relatives à :
Acier X4CrNiMo16-5-1 (1.4418)
Élaboré à l’air
Trempé et revenu
Barres
De ≤ 200 mm
1 150 MPa ≤ Rm ≤ 1 300 MPa
pour les applications aérospatiales.
NOTE Autres désignations communes :
- AIR : Z 8 CND 17-04.
- Seule la composition chimique selon le présent document est prise en compte.
Aeronavtika - Jeklo X4CrNiMo16-5-1 (1.4418) - Taljeno - Utrjeno in mehko žarjeno - Palice - De ≤ 200 mm - 1150 MPa ≤ Rm ≤ 1300 MPa
Ta dokument določa zahteve, ki se navezujejo na:
jeklo X4CrNiMo16-5-1 (1.4418),
taljeno,
utrjeno in mehko žarjeno,
palice,
De ≤ 200 mm,
1150 MPa ≤ Rm ≤ 1300 MPa,
za uporabo v aeronavtiki.
OPOMBA: Druge pogoste oznake:
– AIR: Z 8 CND 17-04.
– Upošteva se le kemijska sestava v skladu s tem dokumentom.
General Information
Relations
Overview
EN 4628:2022 is a CEN aerospace-series material standard that specifies requirements for steel X4CrNiMo16‑5‑1 (1.4418) in the form of air‑melted, hardened and tempered bars with external diameter De ≤ 200 mm. The standard targets high‑strength stainless steel bars with a tensile strength range of 1 150 MPa ≤ Rm ≤ 1 300 MPa for aerospace applications and replaces the 2013 edition.
Key facts:
- Standard: EN 4628:2022
- Material: X4CrNiMo16‑5‑1 (1.4418) (also referenced as AIR: Z 8 CND 17‑04)
- Form: Bars, De ≤ 200 mm
- Heat treatment: Hardened and tempered
- Tensile strength: 1 150–1 300 MPa
Key Topics and Requirements
EN 4628:2022 defines chemical, mechanical, microstructural and inspection requirements, including:
- Chemical composition (selected limits from the table):
- C ≤ 0.06 %, Si ≤ 0.70 %, Mn ≤ 1.50 %
- P ≤ 0.030 %, S ≤ 0.005 %, N ≥ 0.020 %
- Cr 15.00–17.00 %, Mo 0.80–1.50 %, Ni 4.00–6.00 %
- Melting method: Air melted (only this melting route is considered)
- Mechanical properties:
- Proof stress Rp0,2 ≥ 900 MPa (for hardened condition)
- Tensile strength Rm between 1 150 and 1 300 MPa
- Elongation: ≥ 14 % for smaller diameters (De ≤ 75 mm); ≥ 8 % for 75 < De ≤ 200 mm
- Hardness (HBW): specified ranges for delivery and use conditions (example: 341–401 HBW in hardened/tempered state)
- Microstructure and defects:
- δ‑ferrite ≤ 5 %, retained austenite ≤ 10 %
- Grain size G ≥ 5 or finer (per EN ISO 643)
- Inclusion level Category 2 (EN 2951)
- Non‑destructive testing and acceptance:
- Ultrasonic testing per EN 4050‑4, Class 2
- Visual, macrostructure and micrographic inspections per EN 4700‑002, EN 2950 and referenced ASTM/AMS practices
- Special notes: Air quenching may be used for De ≤ 20 mm; product qualification program to be agreed between manufacturer and purchaser.
Applications and Who Uses It
EN 4628:2022 is intended for manufacturers, suppliers, procurement managers, quality/inspection engineers, and design engineers in the aerospace and defence sectors who require a high‑strength corrosion‑resistant steel bar for structural or safety‑critical components. Typical uses include aerospace structural parts and components where controlled chemistry, mechanical performance and traceable inspection are mandatory.
Related Standards
- EN 4700‑002 (technical specification for bars)
- EN 2950 / EN 2951 (macro/micrographic inspection and inclusions)
- EN 4050‑4 (UT acceptance criteria)
- EN ISO 643 (grain size)
- EN 4258, EN 4500‑005 (series organization and drafting rules)
- AMS 2315, ASTM A604 / E340 / E381 (referenced practices)
Keywords: EN 4628:2022, X4CrNiMo16‑5‑1, 1.4418, aerospace steel bars, hardened and tempered, air melted, Rm 1150‑1300 MPa, EN 4700‑002.
Frequently Asked Questions
SIST EN 4628:2023 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted - Hardened and tempered - Bars - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa". This standard covers: This document specifies the requirements relating to: Steel X4CrNiMo16-5-1 (1.4418) Air melted Hardened and tempered Bars De ≤ 200 mm 1 150 MPa ≤ Rm ≤ 1 300 MPa for aerospace applications. NOTE Other common designations: - AIR: Z 8 CND 17-04. - Only the chemical composition according to this document is considered.
This document specifies the requirements relating to: Steel X4CrNiMo16-5-1 (1.4418) Air melted Hardened and tempered Bars De ≤ 200 mm 1 150 MPa ≤ Rm ≤ 1 300 MPa for aerospace applications. NOTE Other common designations: - AIR: Z 8 CND 17-04. - Only the chemical composition according to this document is considered.
SIST EN 4628:2023 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.
SIST EN 4628:2023 has the following relationships with other standards: It is inter standard links to SIST EN 4628:2014, SIST EN 4628:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 4628:2023 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.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN 4628:2014
Aeronavtika - Jeklo X4CrNiMo16-5-1 (1.4418) - Taljeno - Utrjeno in mehko žarjeno -
Palice - De ≤ 200 mm - 1150 MPa ≤ Rm ≤ 1300 MPa
Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted - Hardened and
tempered - Bars - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
Luft- und Raumfahrt - Stahl X4CrNiMo16-5-1 (1.4418) - Lufterschmolzen - Gehärtet- und
angelassen - Stangen - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
Série aérospatiale - Acier X4CrNiMo16-5-1 (1.4418) - Élaboré à l'air - Trempé et revenu
- Barres - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
Ta slovenski standard je istoveten z: EN 4628:2022
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 4628
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 49.025.10 Supersedes EN 4628:2013
English Version
Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air
melted - Hardened and tempered - Bars - D ≤ 200 mm - 1
e
150 MPa ≤ R ≤ 1 300 MPa
m
Série aérospatiale - Acier X4CrNiMo16-5-1 (1.4418) - Luft- und Raumfahrt - Stahl X4CrNiMo16-5-1 (1.4418)
Élaboré à l'air - Trempé et revenu - Barres - D ≤ 200 - Lufterschmolzen - Gehärtet- und angelassen - Stangen
e
mm - 1 150 MPa ≤ R ≤ 1 300 MPa - De ≤ 200 mm - 1 150 MPa ≤ Rm ≤ 1 300 MPa
m
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 NORMALISATIO N
E U R OP ÄI S CHES KOMITEE FÜR NORMUN G
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 4628:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Requirements . 6
Bibliography . 10
European foreword
This document (EN 4628:2022) 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 shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 4628:2013.
This document is a technical revision of EN 4628:2013.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: 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 the United
Kingdom.
Introduction
This document is part of the series of EN metallic material standards for aerospace applications.
The general organization of this series is described in EN 4258.
This document has been prepared in accordance with EN 4500-005.
...
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