SIST EN 4326:2002

• Abstract:

  This standard specifies the requirements relating to:; Heat resisting alloy CO-WH4102 (CoCr28W20Ni5V1); Filler metal for welding; Wire and rod; for aerospace applications.; This material is suitable for the manufacture of pre-forms.

• 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 4326:2001 - Aerospace series - Heat resisting alloy CO-WH4102 (CoCr28W20Ni5V1) - Filler metal for welding - Wire and rod

• Refers: SIST EN 4258:2024 - Aerospace series - Metallic materials - General organization of standardization - Link between types of European Standards and their use
• Effective Date: 28-Jan-2026

SIST EN 4326:2002 is the Slovenian adoption of EN 4326:2001 from SIST for aerospace materials. It specifies requirements for heat resisting alloy CO-WH4102 (CoCr28W20Ni5V1) used as filler metal for welding in wire and rod form. The material is intended for aerospace applications and is stated to be suitable for the manufacture of pre-forms.

What does SIST EN 4326:2002 specify?

SIST EN 4326:2002 specifies the requirements for an aerospace welding filler metal made from heat resisting alloy CO-WH4102. It covers the wire and rod product form, the allowed manufacturing routes, the delivery condition and the quality checks tied to acceptance.

The document is organized around a short front section, the scope, normative references, and a requirements table that covers material designation, form, production method, dimensions, delivery condition, inspection items and product qualification. The standard relies on referenced aerospace material standards for several acceptance and qualification details.

What are the key requirements of SIST EN 4326:2002?

The standard identifies the material as CO-WH4102 (CoCr28W20Ni5V1) and sets chemical composition limits for the listed elements. In practice, this is the chemistry that the supplier has to control and document for the alloy to be accepted for aerospace use.

SIST EN 4326:2002 states that the alloy is air melted. It also allows the product to be supplied as cast or extruded wire or rod, with limit dimensions given in the requirements table. For a buyer, that means the manufacturing route and size range are part of the ordered product definition, not just the alloy name.

The standard gives the delivery condition as cast or extruded and annealed, with delivery condition code U. That matters because the supplied state affects handling, welding behavior and how the material is checked on receipt.

SIST EN 4326:2002 points to EN 3879 as the technical specification for the filler metal. The same reference is used for control of external defects, residual stress, internal defects, batch uniformity, marking inspection and dimensional inspection. In practice, these checks support traceability and show whether the supplied wire or rod matches the aerospace specification.

The requirements table also lists the property and test headings used for qualification and control, including proof stress, tensile strength, elongation, hardness, shear strength, bending, impact strength and stress-rupture-related properties. The standard uses these headings to structure what has to be evaluated, while the detailed methods and criteria are handled through the referenced documents.

SIST EN 4326:2002 requires product qualification according to EN 2043, with the qualification programme agreed between manufacturer and purchaser. For procurement and quality teams, this is the point where the approval plan has to be set before routine supply starts.

What terms does SIST EN 4326:2002 define?

• CO-WH4102 (CoCr28W20Ni5V1) - the heat resisting alloy named by the standard, used as the material designation for procurement and qualification.
• Filler metal for welding - material added during welding to join parts, supplied here as wire or rod.
• Wire and rod - the two product forms covered by the standard, so the buyer orders the filler metal in a defined physical shape.
• Air melted - a melting route stated for the alloy, identifying how the base material is produced.
• Cast or extruded - the permitted production routes for the supplied product, which affect form, traceability and processing history.
• Delivery condition code U - the code used for the supplied state “cast or extruded and annealed.”
• Product qualification - the approval process used to confirm that the material meets the aerospace requirements before regular supply.

Who uses SIST EN 4326:2002?

SIST EN 4326:2002 is used by aerospace material suppliers, welding filler metal manufacturers, purchasing teams, quality managers and inspection laboratories. It is also relevant to aerospace fabricators who need a controlled filler metal for welding and to define what has to be checked on receipt and during qualification.

What changed in SIST EN 4326:2002 from the previous edition?

SIST EN 4326:2002 is the Slovenian standard identical to EN 4326:2001.

Which standards are used with SIST EN 4326:2002?

• EN 2043 - provides the framework for semi-finished product qualification used for product approval.
• EN 3879 - gives the technical specification for aerospace welding filler metal and is used for defects, residual stress, batch uniformity, marking and dimensional inspection.
• EN 4258 - describes the general organization of aerospace metallic material standards.
• EN 4500-3 - sets the drafting and presentation rules used for heat resisting alloy material standards.

What does the SIST EN 4326:2002 document contain?

The document contains a material requirements table rather than a long set of separate tests. It lists the alloy designation, composition items, melting method, allowed product forms, production route, limit dimensions and delivery condition.

It also includes inspection and qualification entries that point to EN 3879 and EN 2043. These entries are used for acceptance checks, traceability, dimensional control and approval of the material for aerospace supply.

The table structure covers the property headings normally needed for welding filler metal control, including strength, ductility, hardness and rupture-related properties. For a reader, this shows what kind of evidence has to be available when the material is ordered, tested or qualified.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Heat resisting alloy CO-WH4102 (CoCr28W20Ni5V1) - Filler metal for welding - Wire and rodLuft- und Raumfahrt - Hochwarmfeste Legierung CO-WH4102 (CoCr28W20Ni5V1) - Schweißzusatz - Draht und StäbeSérie aérospatiale - Alliage résistant a chaud CO-WH4102 (CoCr28W20Ni5V1) - Métal d'apport de soudage - Fil et baguetteAerospace series - Heat resisting alloy CO-WH4102 (CoCr28W20Ni5V1) - Filler metal for welding - Wire and rod49.025.15Neželezove zlitine na splošnoNon-ferrous alloys in generalICS:Ta slovenski standard je istoveten z:EN 4326:2001SIST EN 4326:2002en01-januar-2002SIST EN 4326:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4326June 2001ICS 49.025.15English versionAerospace series - Heat resisting alloy CO-WH4102(CoCr28W20Ni5V1) - Filler metal for welding - Wire and rodSérie aérospatiale - Alliage résistant à chaud CO-WH4102(CoCr28W20Ni5W1) - Métal d'apport de soudage - Fil etbaguetteLuft- und Raumfahrt - Hochwarmfeste Legierung CO-WH4102 (CoCr28W20Ni5V1) - Schweißzusatz - Draht undStäbeThis 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 4326:2001 ESIST EN 4326:2002

Page 2EN 4326:2001ForewordThis 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 Eu
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