SIST EN 3964:2002

Aerospace series - Copper CU-BU9001 - Filler metal for brazing - Wire

This standard specifies the requirements relating to:
Copper CU-BU9001
Filler metal for brazing
Wire
for aerospace applications.

Luft- und Raumfahrt - Kupfer CU-BU9001 - Hartlot in Form von Draht

Diese Norm legt die Anforderungen an:
Kupfer CU-BU9001
Hartlot in Form von
Draht
für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Cuivre CU-BU9001 - Métal d'apport de brasage - Fil

Aerospace series - Copper CU-BU9001 - Filler metal for brazing - Wire

General Information

• Status: Published
• Publication Date: 31-Dec-2001
• ICS: 49.025.15 - Non-ferrous alloys in general
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2002
• Due Date: 01-Jan-2002
• Completion Date: 01-Jan-2002
• Ref Project: EN 3964:2001 - Aerospace series - Copper CU-BU9001 - Filler metal for brazing - Wire

Overview

SIST EN 3964:2002 is a European standard developed by CEN specifically for the aerospace industry. It defines the requirements for Copper CU-BU9001 filler metal wire used in brazing applications. This standard addresses the chemical composition, manufacturing process, and technical specifications necessary to ensure consistent quality and performance in aerospace manufacturing. The copper filler metal defined in this standard is critical for joining various metal components reliably in aerospace assemblies.

Key Topics

• Material Specification: Copper CU-BU9001 is the designated filler metal base material. It must have a minimum copper content of 99.92%, with tight limits on impurities such as phosphorus, aluminum, and lead to guarantee high purity and optimal brazing characteristics.

• Form and Dimensions: The filler metal is supplied in wire form, produced through cold drawing, rolling, or extrusion. The wire diameter can be up to 5 mm, with strict dimensional tolerances to support precision in aerospace manufacturing processes.

• Manufacturing Processes: The copper wire must be melted in an inert gas atmosphere or vacuum to avoid contamination and ensure uniformity. It is then cold formed and cleaned to prepare it for brazing.

• Technical Requirements: SIST EN 3964:2002 aligns with other aerospace standards such as EN 3875 for quality control measures including inspection for external defects, thermal analysis, wettability testing, batch uniformity, and marking. These ensure the filler metal's high-quality performance under aerospace operating conditions.

• Delivery Conditions: The wire can be delivered "as manufactured" or annealed, depending on aerospace application requirements, ensuring flexibility to meet different operational stresses or handling needs.

Applications

SIST EN 3964:2002 copper filler metal wire is designed primarily for aerospace brazing, serving as a reliable braze filler in:

• Joining ferrous and nickel-base alloys which are common in aerospace components.
• Bonding copper-base alloys in aerospace structural assemblies.
• Use in manufacturing aircraft engines, frames, and critical aerospace equipment, where strong, corrosion-resistant, and thermally stable joints are essential.
• Supporting high-precision joining techniques in aerospace manufacturing where quality and consistency are mandated.

Related Standards

SIST EN 3964:2002 integrates and complements several key aerospace series standards, including:

• EN 2043: Governs general requirements for semi-finished metallic products qualification.
• EN 3875: Provides technical specifications and test methods for filler metals for brazing.
• EN 4258: Defines the organizational framework for aerospace metallic material standards.
• EN 4500-6: Details drafting and presentation rules for filler metal material standards.

These standards work in synergy to support a harmonized approach to metallic materials specification and quality assurance in the aerospace industry.

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By adhering to SIST EN 3964:2002, aerospace manufacturers ensure the use of high-purity copper filler metal wire that consistently meets stringent requirements for brazing performance, enabling the production of safe, durable, and high-performing aerospace structures. This standard is essential for engineers and manufacturing specialists involved in aerospace brazing processes seeking reliable materials compliant with European regulatory expectations.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Copper CU-BU9001 - Filler metal for brazing - WireLuft- und Raumfahrt - Kupfer CU-BU9001 - Hartlot in Form von DrahtSérie aérospatiale - Cuivre CU-BU9001 - Métal d'apport de brasage - FilAerospace series - Copper CU-BU9001 - Filler metal for brazing - Wire49.025.15Neželezove zlitine na splošnoNon-ferrous alloys in generalICS:Ta slovenski standard je istoveten z:EN 3964:2001SIST EN 3964:2002en01-januar-2002SIST EN 3964:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3964June 2001ICS 49.025.15English versionAerospace series - Copper CU-BU9001 - Filler metal for brazing- WireSérie aérospatiale - Cuivre CU-BU9001 - Métal d'apport debrasage - FilLuft- und Raumfahrt - Kupfer CU-BU9001 - Hartlot in Formvon DrahtThis European Standard was approved by CEN on 2 May 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3964:2001 ESIST EN 3964:2002

Page 2EN 3964:2001ForewordThis European Standard has been prepared by the European Association of Aerospace Manufacturers(AECMA).After inquiries and votes carried out in accordance with the rules of this Association, this Standard hasreceived the approval of the National Associations and the Official Services of the member countries ofAECMA, prior to its presentation to CEN.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by December 2001, and conflicting national standards shall bewithdrawn at the latest by December 2001.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Por
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