EN 4244:2020
(Main)Aerospace series - Heat resisting alloy FE-PM1708 - Vacuum arc remelted - Hardened and tempered - Bars - a or D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ 1 140 MPa
Aerospace series - Heat resisting alloy FE-PM1708 - Vacuum arc remelted - Hardened and tempered - Bars - a or D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ 1 140 MPa
This document specifies the requirements relating to:
Heat resisting alloy FE-PM1708
Vacuum arc remelted
Hardened and tempered
Bars
a or D ≤ 200 mm
1 000 MPa ≤ Rm ≤ 1 140 MPa
for aerospace applications.
Luft- und Raumfahrt - Hochwarmfeste Legierung FE-PM1708 - Lichtbogenvakuumerschmolzen - Gehärtet und angelassen - Stangen - a oder D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ 1 140 MPa
Dieses Dokument legt die Anforderungen an
Hochwarmfeste Legierung FE-PM1708
Lichtbogenvakuumerschmolzen
Gehärtet und angelassen
Stangen
a oder D ≤ 200 mm
1 000 MPa ≤ Rm ≤ 1 140 MPa
für Anwendungen in der Luft- und Raumfahrt fest.
Série aérospatiale - Alliage résistant à chaud FE-PM1708 - Refondu sous vide par arc - Trempé et revenu - Barres - a ou D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ 1 140 MPa
Le présent document spécifie les exigences relatives à :
Alliage résistant à chaud FE-PM1708
Refondu sous vide par arc
Trempé et revenu
Barres
a ou D ≤ 200 mm
1 000 MPa ≤ Rm ≤ 1 140 MPa
pour applications aérospatiales.
Aeronavtika - Toplotno odporna zlitina FE-PM1708 - Obločno pretaljeno v vakuumu - Utrjeno in mehko žarjeno - Palica - a ali D ≤ 200 mm - 1000 MPa ≤ Rm 1140 MPa
General Information
- Status
- Published
- Publication Date
- 25-Feb-2020
- Withdrawal Date
- 30-Aug-2020
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 4/S 3 - Steels & Heat Resisting Alloys
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 26-Feb-2020
- Completion Date
- 26-Feb-2020
Overview
EN 4244:2020 is a CEN (ASD-STAN) aerospace material standard that defines requirements for the heat resisting alloy FE‑PM1708 supplied as vacuum arc remelted bars, hardened and tempered, with nominal bar diameter or section a or D ≤ 200 mm. The standard targets aerospace applications requiring high tensile strength, specifying a tensile strength range 1 000 MPa ≤ Rm ≤ 1 140 MPa and associated production, inspection and delivery conditions.
Key topics and technical requirements
- Material and melting: Heat resisting alloy FE‑PM1708, produced by vacuum arc remelting (VAR).
- Form and limits: Bars (a or D ≤ 200 mm). Dimensional and designation rules referenced to EN 2344 and EN 2600.
- Delivery conditions: Options include softened/descaled and hardened & tempered (machined/ground or descaled). Heat treatment includes solution treatment around ~1170 °C and tempering cycles in the ~610–760 °C range (see EN 4244 Table 1 for exact temperatures/times).
- Mechanical properties:
- Tensile strength (Rm): 1 000 to 1 140 MPa.
- Proof stress (Rp0,2): ≥ 880 MPa (in specified delivery conditions).
- Elongation (A): ≥ 12% for a or D ≤ 125 mm; ≥ 8% for a or D > 125 mm.
- Reduction of area (Z): ≥ 40% (smaller sizes), ≥ 30% (larger sizes).
- Hardness (HB): softened ≤ 277 HB; hardened/tempered 321–352 HB.
- Microstructure & defects:
- δ‑ferrite content limited to ≤ 5%.
- Internal quality: ultrasonic testing class 3 per EN 4700‑002.
- Visual inspection and other imperfection limits referenced to EN 4700‑002.
- Qualification & testing: Product qualification and specific test programmes to be agreed between manufacturer and purchaser.
Practical applications
EN 4244:2020 is intended for use wherever high‑strength, heat‑resistant alloy bars are required in aerospace components and manufacturing. Typical uses include supply specifications for raw bar stock used in high‑temperature structural parts and precision machined components in aircraft and spacecraft systems where controlled chemistry, mechanical properties and low internal defects are critical.
Who uses this standard
- Materials and metallurgical engineers specifying alloy bars for aerospace manufacture
- Procurement and quality assurance teams at aerospace OEMs and Tier suppliers
- Heat‑treatment specialists and bar manufacturers (VAR producers)
- Design and structural engineers requiring certified bar stock data for high‑temperature, high‑strength applications
Related standards
- EN 4700‑002 - Steel and heat resisting alloys - Wrought products - Technical specification (bars/sections)
- EN 2344 - Aerospace series - Round bars, machined in heat resisting alloys
- EN 2600 - Designation of metallic semi‑finished products
- EN 4258, EN 4500‑003 - Organization and drafting rules for aerospace metallic material standards
Keywords: EN 4244:2020, FE‑PM1708, heat resisting alloy, vacuum arc remelted, hardened and tempered, aerospace bars, Rm 1000‑1140 MPa.
Frequently Asked Questions
EN 4244:2020 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Heat resisting alloy FE-PM1708 - Vacuum arc remelted - Hardened and tempered - Bars - a or D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ 1 140 MPa". This standard covers: This document specifies the requirements relating to: Heat resisting alloy FE-PM1708 Vacuum arc remelted Hardened and tempered Bars a or D ≤ 200 mm 1 000 MPa ≤ Rm ≤ 1 140 MPa for aerospace applications.
This document specifies the requirements relating to: Heat resisting alloy FE-PM1708 Vacuum arc remelted Hardened and tempered Bars a or D ≤ 200 mm 1 000 MPa ≤ Rm ≤ 1 140 MPa for aerospace applications.
EN 4244:2020 is classified under the following ICS (International Classification for Standards) categories: 49.025.99 - Other materials. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN 4244:2020 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 CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2020
Aeronavtika - Toplotno odporna zlitina FE-PM1708 - Obločno pretaljeno v
vakuumu - Utrjeno in mehko žarjeno - Palica - a ali D ≤ 200 mm - 1000 MPa ≤ Rm
1140 MPa
Aerospace series - Heat resisting alloy FE-PM1708 - Vacuum arc remelted - Hardened
and tempered - Bar - a or D ≤ 200 mm - 1000 MPa ≤ Rm 1140 MPa
Luft- und Raumfahrt - Hichwarmfeste Legierung FE-PM1708 -
Lichtbogenvakuumerschmolzen - Gehärtet und angelassen - Stangen - a oder D ≤ 200
mm - 1000 MPa ≤ Rm ≤ 1140 Mpa
Série aérospatiale - Alliage résistant à chaud FE-PM1708 - Refondu sous vide par arc -
Trempé et revenu - Barres - a ou D ≤ 200 mm - 1000 MPa ≤ Rm 1140 MPa
Ta slovenski standard je istoveten z: EN 4244:2020
ICS:
49.025.99 Drugi materiali Other materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 4244
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 49.025.99
English Version
Aerospace series - Heat resisting alloy FE-PM1708 -
Vacuum arc remelted - Hardened and tempered - Bars - a
or D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ 1 140 MPa
Série aérospatiale - Alliage résistant à chaud FE- Luft- und Raumfahrt - Hochwarmfeste Legierung FE-
PM1708 - Refondu sous vide par arc - Trempé et PM1708 - Lichtbogenvakuumerschmolzen - Gehärtet
revenu - Barres - a ou D ≤ 200 mm - 1 000 MPa ≤ Rm ≤ und angelassen - Stangen - a oder D ≤ 200 mm - 1 000
1 140 MPa
MPa ≤ Rm ≤ 1 140 MPa
This European Standard was approved by CEN on 18 November 2019.
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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4244:2020 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 . 8
European foreword
This document (EN 4244:2020) 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 Standard 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 European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2020, and conflicting national standards shall
be withdrawn at the latest by August 2020.
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.
According to the CEN-CENELEC I
...
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