SIST EN 3875:2017

Aerospace series - Metallic materials, Filler metal for brazing - Technical specification

This European Standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of all forms of filler metal for brazing for aerospace applications. It shall be applied when referred to in the EN material standard unless otherwise specified on the drawing, order or inspection schedule.

Luft- und Raumfahrt - Metallische Werkstoffe, Hartlote; Technische Lieferbedingungen

Série aérospatiale - Matériaux métalliques, Métaux d'apport de brasage - Spécification technique

Aeronavtika - Kovinski materiali, kovinsko polnilo za spajkanje - Tehnična specifikacija

Ta evropski standard opredeljuje zahteve za naročanje, proizvodnjo, preskušanje, pregled ter dobavo vseh vrst kovinskega polnila za spajkanje v aeronavtiki. Uporabljati ga je treba, kadar se nanj sklicuje v standardu EN za materiale, razen če je na skici, v naročilu ali programu pregledov navedeno drugače.

General Information

• Status: Published
• Publication Date: 17-Aug-2017
• ICS: 25.160.50 - Brazing and soldering
• ICS: 49.025.05 - Ferrous alloys in general
• ICS: 49.025.15 - Non-ferrous alloys in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Aug-2017
• Due Date: 16-Oct-2017
• Completion Date: 18-Aug-2017
• Ref Project: EN 3875:2017 - Aerospace series - Metallic materials, Filler metal for brazing - Technical specification

Overview

Standard reference: EN 3875:2017
Title: Aerospace series - Metallic materials, Filler metal for brazing - Technical specification
Organization: CEN / ASD‑STAN

EN 3875:2017 specifies requirements for the ordering, manufacture, testing, inspection and delivery of all forms of filler metal for brazing used in aerospace applications. It applies when invoked by an EN material standard or when specified on drawings, orders or inspection schedules. The standard covers product forms such as braze powder, wire, foil (rolled / amorphous / borided), tape and paste, and sets expectations for health & safety, marking, traceability and expiry for consumable products.

Key topics and requirements

• Scope and product forms: Defines applicable filler-metal types (powder, wire, foil, tape, paste) and delivery conditions.
• Ordering information: Mandatory order data (quantities, delivery dates, material standard number, delivery condition, dimensions/tolerances, packing, special tests).
• Manufacturing control: Requires a manufacturing schedule and compliance with EN 2078 for inspection and test reporting.
• Chemical composition & melting methods: Chemical analysis per cast or powder batch; accepted melting methods include air, vacuum or inert gas melting.
• Testing and release: Manufacturer responsibility for release testing; purchaser may witness tests. Rules for retests, rejection, special tests and a capability clause (reduced testing when sufficient statistical evidence exists). Use of statistical process control may reduce test extent by agreement.
• Traceability: Product must be traceable to the cast production batch and/or heat treatment batch throughout manufacture and delivery.
• Health & safety / documentation: Product must meet local health and safety laws and be supplied with a product safety data sheet.
• Expiry for paste/tape: Manufacturer to guarantee shelf life in original packing - expiry date at least six months after delivery.
• Marking: Examples include adhesive labels (~18 × 18 mm), shrink sleeves or impression stamps for individual lengths of braze wire.

Applications and users

• Applications: Specification for brazing filler materials used in aircraft structures, engine components, avionics housings and other aerospace assemblies where controlled brazing performance, reliability and traceability are required.
• Who uses it: Manufacturers and suppliers of brazing alloys and consumables, aerospace OEMs, subcontractors, inspection & quality engineers, procurement teams and certification bodies.

Related standards

Commonly referenced alongside:

• EN 2032‑1 (designation), EN 2032‑2 (metallurgical coding)
• EN 2078 (manufacturing/inspection schedule & test reports)
• EN 3876–EN 3878 (braze alloy test methods)
• EN 4061–EN 4066 (dimensions for foil, wire, tape, etc.)
• EN 4258 / EN 4259 (series organization and terms)
• EN 4268, EN 9100, EN 9133 and ISO 3954 / ISO 4497

EN 3875:2017 is essential when specifying, producing or procuring aerospace-grade brazing filler metals to ensure consistent quality, full traceability and regulatory compliance.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VSHFLILNDFLMDLuft- und Raumfahrt - Metallische Werkstoffe, Hartlote; Technische LieferbedingungenSérie aérospatiale - Matériaux métalliques, Métaux d'apport de brasage - Spécification techniqueAerospace series - Metallic materials, Filler metal for brazing - Technical specification49.025.15Neželezove zlitine na splošnoNon-ferrous alloys in general49.025.05Železove zlitine na splošnoFerrous alloys in general25.160.50Trdo in mehko lotanjeBrazing and solderingICS:Ta slovenski standard je istoveten z:EN 3875:2017SIST EN 3875:2017en,fr,de01-oktober-2017SIST EN 3875:2017SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3875
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Aerospace series æ Metallic materialsá Filler metal for brazing æ Technical specification Série aérospatiale æ Matériaux métalliquesá Métaux d 5apport de brasage æ Spécification technique
Luftæ und Raumfahrt æ Metallische Werkstoffe æ Hartlote æ Technische Lieferbedingungen This European Standard was approved by CEN on
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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 Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
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t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
u z y wã t r s y ESIST EN 3875:2017

EN 2032-1, Aerospace series — Metallic materials — Part 1: Conventional designation EN 2032-2, Aerospace series — Metallic materials — Part 2: Coding of metallurgical condition in delivery condition EN 2078, Aerospace series — Metallic materials — Manufacturing schedule, inspection schedule, inspection and test report — Definition, general principles, preparation and approval EN 3876, Aerospace series — Test method for metallic materials — Braze alloys – Fusion test1) EN 3877, Aerospace series — Metallic materials — Test method — Determination of solidus and liquidus temperatures by differential thermal analysis of braze alloys1) EN 3878, Aerospace series — Test method for metallic materials — Braze alloys — Flexibility test1) EN 4061, Aerospace series — Amorphous foil in filler metal for brazing — Thickness 25
º a
º 64
— Dimensions1) EN 4062, Aerospace series — Rolled foil in filler metal for brazing — Thickness a
º 1 mm — Dimensions1) EN 4063, Aerospace series — Wire in filler metal for brazing — Diameter 0,6 mm
º D
º 4 mm — Dimensions1) EN 4064, Aerospace series — Tape in filler metal for brazing — Thickness 0,075 mm
º a
º 1,5 mm — Dimensions1) EN 4066, Aerospace series — Borided foil in filler metal for brazing — Thickness 25
º a
º 100
— Dimensions1) EN 4258, Aerospace series — Metallic materials — General organization of standardization — Links between types of EN standards and their use EN 4259, Aerospace series — Metallic materials — Definition of general terms1) EN 4268, Aerospace series — Metallic materials — Heat treatment facilities — General requirements EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defence Organizations EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts ISO 3954, Powders for powder metallurgical purposes — Sampling ISO 4497, Metallic powders — Determination of particle size by dry sieving 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: Definition of general terms, see EN 4259.
1) Published as AECMA Prestandard at the date of publication of this European Standard SIST EN 3875:2017
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