SIST EN 4376:2016

Aerospace series - Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) solution treated and precipitation treated - Bar and section, De ≤ 200 mm

This European Standard specifies the requirements relating to:
Heat resisting alloy NI-PH2601 (NiCr19Fe19Nb5Mo3)
Solution treated and precipitation treated
Bar and section
De  200 mm
for aerospace applications.

Luft- und Raumfahrt - Hochwarmfeste Legierung NiCr19Fe19Nb5Mo3 (2.4668) lösungsgeglüht und ausgehärtet - Stangen und Profile, De ≤ 200 mm

Série aérospatiale - Alliage résistant à chaud NiCr19Fe19Nb5Mo3 (2.4668) mis en solution et précipté - Barres et profilés, De ≤ 200 mm

La présente norme spécifie les exigences relatives à :
Alliage résistant à chaud NiCr19Fe19Nb5Mo3 (2.4668)
Mis en solution et précipité
Barres et profilés
De ≤ 200 mm
pour les applications aérospatiales.

Aeronavtika - Toplotno odporna zlitina NiCr19Fe19Nb5Mo3 (2.4668), žarjena v topilu in utrjena - Palice in profili, De ? 200 mm

Ta evropski standard določa zahteve glede
toplotno odporne zlitine NiCr19Fe19Nb5Mo3 (2.4668),
žarjene v topilu in utrjene –
palice in profili
De ≤ 200 mm
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 20-Apr-2016
• ICS: 49.025.01 - Materials for aerospace construction in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 31-Mar-2016
• Due Date: 05-Jun-2016
• Completion Date: 21-Apr-2016
• Ref Project: EN 4376:2016 - Aerospace series - Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) solution treated and precipitation treated - Bar and section, De ≤ 200 mm

Overview

EN 4376:2016 is a CEN (European) aerospace material standard that specifies requirements for the heat‑resisting nickel‑based alloy NiCr19Fe19Nb5Mo3 (EN number 2.4668, also referenced as NI‑PH2601) in bar and section form with an outside diameter (De) ≤ 200 mm. The standard covers solution treated and solution + precipitation treated delivery conditions intended for aerospace applications and sets rules for chemical composition, production method, heat treatment, mechanical properties and inspection.

Key topics and requirements

• Material designation and chemistry: Alloy identified as NiCr19Fe19Nb5Mo3 (2.4668) with specified ranges for Ni, Cr, Fe, Nb, Mo and other elements (full composition tables are in the standard).
• Form and production: Covers wrought bars and sections with De ≤ 200 mm produced by consumable electrode remelting.
• Delivery conditions: Two main conditions - solution treated (code W) and solution + precipitation treated (code U). Heat‑treatment parameters and sequencing are defined; precipitation treatment commonly referenced at around 620 °C, with guidance that if furnace cooling rates fall outside specified ranges the precipitation time at 620 °C shall be increased (to ≥ 18 h).
• Mechanical and high‑temperature properties: Specifies proof stress (Rp0.2), tensile strength (Rm), elongation and rupture stress at ambient and elevated temperature (e.g., 650 °C). Example values are provided in the standard (e.g., Rp0.2 up to ~1 035 MPa; Rm up to ~1 270 MPa depending on condition).
• Microstructure and quality: Requirements for homogeneous microstructure, grain size limits, external/internal defect classification and allowable cladding thickness are referenced to EN 4700‑2.
• Testing and inspection: Testpiece orientation, hardness, bending and notch/unnotched rupture testing protocols are specified or cross‑referenced.
• Qualification and conformity: Product qualification and semi‑finished product qualification follow EN 2043 and general aerospace standard organization rules (EN 4258, EN 4500‑003).

Applications and practical use

EN 4376:2016 is intended for use wherever a heat‑resisting nickel‑based alloy in bar/profile form is required for aerospace components exposed to high temperatures. Typical practical uses include specification, procurement and quality control of material supplied for high‑temperature structural applications, engine components and other aerospace parts where corrosion resistance and mechanical strength at elevated temperature are critical.

Who uses this standard

• Aerospace materials engineers and designers specifying high‑temperature alloys
• Manufacturers of bars, sections and wrought components
• Purchasing and quality assurance teams verifying supplier compliance
• Certification and testing laboratories performing material qualification

Related standards

• EN 4700‑2 - Steel and heat resisting alloys: wrought products - technical specification - bar and section
• EN 2043 - Aerospace series: general requirements for semi‑finished product qualification
• EN 4258 - Organization of aerospace metallic material standards
• EN 4500‑003 - Rules for drafting heat resisting alloy material standards

Keywords: EN 4376:2016, NiCr19Fe19Nb5Mo3, 2.4668, NI‑PH2601, heat resisting alloy, solution treated, precipitation treated, aerospace materials, bar and section, De ≤ 200 mm.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Toplotno odporna zlitina NiCr19Fe19Nb5Mo3 (2.4668), žarjena v topilu in utrjena - Palice in profili, De ? 200 mm49.025.01Materiali za letalsko in vesoljsko gradnjo na splošnoMaterials for aerospace construction in generalICS:Ta slovenski standard je istoveten z:EN 4376:2016SIST EN 4376:2016en,fr,de01-maj-2016SIST EN 4376:2016SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4376
March
t r s x ICS
v {ä r t wä r s English Version
Aerospace series æ Heat resisting alloy
solution treated and precipitation treated æ Bar and sectioná De 
t r r mm Série aérospatiale æ Alliage résistant à chaud précipté æ Barres et profilésá De 
t r r mm
Luftæ und Raumfahrt æ Hochwarmfeste Legierung ausgehärtet æ Stangen und Profileá De 
t r r mm This European Standard was approved by CEN on
t z June
t r s vä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
v u y xã t r s x ESIST EN 4376:2016

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