EN 3952:2001

Aerospace series - Silver base alloy AG-B10001 (AgCu28) - Filler metal for brazing - Wire

This standard specifies the requirements relating to:
Silver base alloy AG-B10001 (AgCu28)
Filler metal for brazing
Wire
for aerospace applications.

Luft- und Raumfahrt - Silberbasislegierung AG-B10001 (AgCu28) - Hartlot in Form von Draht

Diese Norm legt die Anforderungen an:
Silberbasislegierung AG-B10001 (AgCu28)
Hartlot in Form von Draht
für die Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Alliage base argent AG-B10001 (AgCu28) - Métal d'apport de brasage - Fil

Aerospace series - Silver base alloy AG-B10001 (AgCu28) - Filler metal for brazing - Wire

General Information

• Status: Published
• Publication Date: 19-Jun-2001
• Withdrawal Date: 30-Dec-2001
• ICS: 49.025.15 - Non-ferrous alloys in general
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 01-Jun-2017
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 3952:2002 - Aerospace series - Silver base alloy AG-B10001 (AgCu28) - Filler metal for brazing - Wire

Overview

EN 3952:2001 (Aerospace series) defines the requirements for silver‑base brazing alloy AG‑B10001 (AgCu28) supplied as wire for aerospace brazing applications. Prepared under the AECMA/CEN process, this standard establishes composition, production, delivery and testing requirements for a silver‑copper filler metal used to join metallic aerospace components.

Key topics and requirements

• Material designation: Silver base braze alloy AG‑B10001 (AgCu28) - nominally a silver‑copper alloy with ≈28% copper (balance silver).
• Eutectic temperature: specified at 780 °C, important for brazing process selection and joint design.
• Form and production: supplied as wire, produced by cold forming and cleaned; melting may be performed in air or inert gas.
• Delivery condition: can be supplied as manufactured or annealed (heat treatment codes referenced in the standard).
• Testing and inspection: references EN 3875 for the technical specification of filler metals and requires checks for:
  • External defects (visual/acceptance)
  • Thermal analysis / differential thermal analysis (melting behaviour)
  • Wettability / fusion tests (ability to wet and flow)
  • Batch uniformity / material verification
  • Marking and dimensional inspection
• Product qualification: qualification procedures are covered by EN 2043; qualification program to be agreed between manufacturer and purchaser.
• Intended joint materials: typical use is joining carbon steels, low‑alloy steels and austenitic steels.

Applications

• Brazing of assemblies and sub‑assemblies in aircraft structures, engine components and aerospace hardware where a silver‑base filler is required for corrosion resistance, ductility and reliable joint metallurgy.
• Situations requiring a controlled melting range and predictable wetting on steels and stainless steels.
• Production and repair operations in aerospace manufacturing, maintenance, repair and overhaul (MRO) environments.

Who should use this standard

• Aerospace materials engineers and metallurgists selecting filler metals
• Procurement/specification writers and quality managers requiring standardized filler metal supply
• Manufacturers of brazed aerospace components and subcontractors performing brazing
• Test laboratories and conformity assessors verifying filler metal properties and batch compliance

Related standards

• EN 3875 - Aerospace filler metal for brazing: technical specification (tests and inspection)
• EN 2043 - Qualification of semi‑finished products (product qualification program)
• EN 4258, EN 4500‑6 - Series organization and drafting rules for aerospace metallic material standards

Keywords: EN 3952:2001, AG‑B10001, AgCu28, silver base alloy, brazing wire, filler metal for brazing, aerospace brazing, CEN, AECMA, eutectic 780 °C.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2002
Aerospace series - Silver base alloy AG-B10001 (AgCu28) - Filler metal for brazing
- Wire
Aerospace series - Silver base alloy AG-B10001 (AgCu28) - Filler metal for brazing -
Wire
Luft- und Raumfahrt - Silberbasislegierung AG-B10001 (AgCu28) - Hartlot in Form von
Draht
Série aérospatiale - Alliage base argent AG-B10001 (AgCu28) - Métal d'apport de
brasage - Fil
Ta slovenski standard je istoveten z: EN 3952:2001
ICS:
49.025.15 Neželezove zlitine na Non-ferrous alloys in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3952
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2001
ICS 49.025.15
English version
Aerospace series - Silver base alloy AG-B10001 (AgCu28) -
Filler metal for brazing - Wire
Série aérospatiale - Alliage base argent AG-B10001 Luft- und Raumfahrt - Silberbasislegierung AG-B10001
(AgCu28) - Métal d'apport de brasage - Fil (AgCu28) - Hartlot in Form von Draht
This European Standard was approved by CEN on 19 April 2001.
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 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 Management Centre has the same status as the official
versions.
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3952:2001 E
worldwide for CEN national Members.

Page 2
Foreword
This 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 has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, 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 December 2001, and conflicting national standards shall be
withdrawn at the latest by December 2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,
Spain, Sweden, Switzerland and the United Kingdom.

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