EN 4718:2022
(Main)Aerospace series - Polyetheretherketone with 55 % continuous glass fibre by volume (PEEK-GF55) - Stock shape material - Material specification
Aerospace series - Polyetheretherketone with 55 % continuous glass fibre by volume (PEEK-GF55) - Stock shape material - Material specification
This document specifies the requirements of a thermoplastic composite stock shape material (e.g. tape,
rod etc.) consisting of polyetheretherketone with 55 % continuous glass fibres by volume (PEEK–GF55)
for aerospace applications, which is presupposed to be used in a further thermal moulding process for
forming parts described in EN 4714 1).
Luft- und Raumfahrt - Polyetheretherketon mit 55 % Volumenanteil Endlos-Glasfaser (PEEK-GF55) - Halbfabrikat - Materialspezifikation
Dieses Dokument legt die Anforderungen an ein aus Polyetheretherketon mit 55 % Volumenanteil Endlosglasfaser (PEEK-GF55) bestehendes thermoplastisches Verbundwerkstoff Halbfabrikat (z. B. Streifen, Stab usw.) für Anwendungen in der Luft und Raumfahrt fest, dessen Verwendung in einem weiteren thermischen Formgussverfahren zur Formung von in EN 4714 beschriebenen Teilen verwendet wird.
Série aérospatiale - Polyétheréthercétone avec 55 % de fibre de verre continue par volume (PEEK-GF55) - Demi-produit - Spécification de matériau
Aeronavtika - Polietereterketon s 55 % neprekinjenih steklenih vlaken (PEEK-GF55) - Zaloga materiala - Specifikacija materialov
Ta dokument določa zahteve za zalogo plastomernega kompozitnega materiala (npr. trakovi, palice itd.) iz polietereterketona s 55 % neprekinjenih steklenih vlaken (PEEK-GF55) za uporabo v aeronavtiki, ki naj bi se uporabljal v nadaljnjem postopku toplotnega oblikovanja delov, opisanih v standardu EN 4714-1).
General Information
Overview
EN 4718:2022 is a CEN aerospace material specification for polyetheretherketone with 55% continuous glass fibre by volume (PEEK‑GF55) supplied as stock‑shape thermoplastic composite (tape, rod, etc.). The standard defines required mechanical, thermal and fire/smoke performance and environmental resistance for PEEK‑GF55 intended for subsequent thermal moulding into aerospace parts (see EN 4714 for example applications).
Key topics and technical requirements
The standard sets test methods and numerical limits for critical properties. Key requirements include:
Mechanical properties
- Flexural strength (0° and 90° directions) and separate requirements for rod specimens (ISO 14125, ISO 3597‑2).
- Flexural strain at break (e.g., 0° ≥ 2%, 90° ≥ 0.6%).
- Flexural modulus (e.g., 0° ≥ 40 GPa, 90° ≥ 8.4 GPa).
Thermal properties
- Temperature of deflection under load (measured per ISO 75‑3).
Fire, smoke and toxic gas limits
- Controlled burn length and after‑flame times (EN 3844‑1).
- Smoke density limit at 240 s (EN 2825) ≤ 200.
- Smoke gas concentration limits (EN 2826): HF, HCl, HCN, SO2, NO/NO2 and CO (e.g., CO ≤ 1 000 ppm).
Material composition and structure
- Density: 1.91 ± 0.04 g/cm3 (ISO 1183‑1).
- Glass fibre content: 55 ± 3 vol‑% (ISO 1172).
- Degree of crystallinity: 15–45 % (ISO 11357‑3).
- Glass fibre strength: minimum value given (ASTM D2343‑17).
Environmental resistance
- Immersion tests to simulate phosphate‑ester hydraulic oil (Skydrol) and aircraft fuel (ISO 175/1817): limits on percentage change in flexural strength after 168 h at 70 °C.
- Humidity exposure: 98% RH at 70 °C for 1 000 h with prescribed limits on property changes.
All tests are referenced to recognized standards (ISO, EN, ASTM) and reported for directions parallel (0°) and perpendicular (90°) to fibre axis where applicable.
Applications
EN 4718:2022 is intended for suppliers and users of PEEK‑GF55 stock‑shape materials used in aerospace manufacturing processes such as thermoforming, moulding and machining into structural components and hardware. Typical practical uses:
- Preforms, tapes and rods for thermally formed aerospace parts
- Lightweight, high‑temperature structural components
- Components where flame, smoke and toxic gas performance are critical
Who should use this standard
- Aerospace OEMs and tier suppliers specifying material performance
- Material producers and distributors of PEEK‑GF55
- Procurement and quality engineers verifying batch compliance
- Test laboratories performing mechanical, thermal and fire/smoke testing
- Design engineers selecting high‑performance thermoplastic composites
Related standards
Normative references cited include EN 4714, EN 2825, EN 2826, EN 3844‑1, ISO 75‑3, ISO 14125, ISO 1172, ISO 1183‑1, ISO 11357‑3, ISO 175, ISO 291 and ASTM D2343‑17. These provide the specific test methods and conditioning procedures required by EN 4718:2022.
Frequently Asked Questions
EN 4718:2022 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Polyetheretherketone with 55 % continuous glass fibre by volume (PEEK-GF55) - Stock shape material - Material specification". This standard covers: This document specifies the requirements of a thermoplastic composite stock shape material (e.g. tape, rod etc.) consisting of polyetheretherketone with 55 % continuous glass fibres by volume (PEEK–GF55) for aerospace applications, which is presupposed to be used in a further thermal moulding process for forming parts described in EN 4714 1).
This document specifies the requirements of a thermoplastic composite stock shape material (e.g. tape, rod etc.) consisting of polyetheretherketone with 55 % continuous glass fibres by volume (PEEK–GF55) for aerospace applications, which is presupposed to be used in a further thermal moulding process for forming parts described in EN 4714 1).
EN 4718:2022 is classified under the following ICS (International Classification for Standards) categories: 49.025.40 - Rubber and plastics. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN 4718:2022 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-2022
Aeronavtika - Polietereterketon s 55 % neprekinjenih steklenih vlaken (PEEK-
GF55) - Zaloga materiala - Specifikacija materialov
Aerospace series - Polyetheretherketone with 55 % continuous glass fibre by volume
(PEEK-GF55) - Stock shape material - Material specification
Luft- und Raumfahrt - Polyetheretherketon mit 55 Volumen % (PEEK–GF55) endlos
Glasfaser - Halbfabrikat - Materialspezifikation
Série aérospatiale - Polyétheréthercétone avec 55 % de fibre de verre continue par
volume (PEEK-GF55) - Demi-produit - Spécification de matériau
Ta slovenski standard je istoveten z: EN 4718:2022
ICS:
49.025.40 Guma in polimerni materiali Rubber and plastics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 4718
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 49.025.40
English Version
Aerospace series - Polyetheretherketone with 55 %
continuous glass fibre by volume (PEEK-GF55) - Stock
shape material - Material specification
Série aérospatiale - Polyétheréthercétone avec 55 % de Luft- und Raumfahrt - Polyetheretherketon mit 55
fibre de verre continue par volume (PEEK-GF55) - Volumen % (PEEK-GF55) endlos Glasfaser -
Demi-produit - Spécification de matériau Halbfabrikat - Materialspezifikation
This European Standard was approved by CEN on 25 July 2021.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4718:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Requirements . 5
European foreword
This document (EN 4718:2022) 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 September 2022, and conflicting national standards shall
be withdrawn at the latest by September 2022.
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 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,
Turkey and the United Kingdom.
1 Scope
This document specifies the requirements of a thermoplastic composite stock shape material (e.g. tape,
rod etc.) consisting of polyetheretherketone with 55 % continuous glass fibres by volume (PEEK–GF55)
for aerospace applications, which is presupposed to be used in a further thermal moulding process for
1)
forming parts described in EN 4714 .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. F
...
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