EN 2157-3:1993

Aerospace series - Steel - Forging stock and forgings - Technical specification - Part 3: Pre-production and production forgings

The present standard specifies the particular requirements for steel forgings produced from forging stock complying with EN 2157-2. This standard shall be used in conjunction with EN 2157-1. This standard also applies to pre-production forgings intended for the qualification of the method of manufacture and inspection.

Luft- und Raumfahrt - Stahl - Schmiedevormaterial und Schmiedestücke - Technische Lieferbedingungen - Teil 3: Ausfallmuster- und Serienmusterstücke

Diese Norm legt die Sonderanforderungen für Schmiedestücke aus Stahl fest, die aus Schmiedevormaterial nach EN 2157-2 gefertigt sind. Diese Norm ist in Verbindung mit EN 2157-1 anzuwenden. Diese Norm gilt ebenfalls für Ausfallmuster-Schmiedestücke zur Qualifikation von Fertigungs- und Prüfverfahren.

Série aérospatiale - Acier - Produits destinés à la forge - Pièces forgées et pièces matricées - Spécification technique - Partie 3: Pièces types et pièces de série

La présente norme définit les exigences particulières pour les pièces forgées et matricées en acier, fabriquées à partir des produits destinés à la forge, répondant à EN 2157-2. La présente norme doit être utilisée en conjonction avec EN 2157-1. La présente norme s'applique aussi aux types destinés à qualifier les méthodes de fabrication et de contrôle.

Aerospace series - Steel - Forging stock and forgings - Technical specification - Part 3: Pre-production and production forgings

General Information

• Status: Published
• Publication Date: 19-Aug-1993
• Withdrawal Date: 27-Feb-1994
• ICS: 49.025.10 - Steels
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 20-Aug-1993
• Completion Date: 20-Aug-1993
• Ref Project: SIST EN 2157-3:2001 - Aerospace series - Steel - Forging stock and forgings - Technical specification - Part 3: Pre-production and production forgings

Overview

EN 2157-3:1993 is a CEN aerospace series technical specification that defines the particular requirements for steel forgings produced from forging stock complying with EN 2157-2. It is intended to be used in conjunction with EN 2157-1 and covers both pre-production forgings (used to qualify manufacturing and inspection methods) and production forgings for aerospace applications.

The standard establishes a consistent framework for suppliers, manufacturers and quality teams to ensure that forgings meet agreed requirements for aerospace components. The published document also notes reproduction restrictions in the original source copy.

Key Topics

• Scope and applicability: Requirements apply to steel forgings manufactured from EN 2157-2 forging stock and reference EN 2157-1 for general provisions.
• Pre-production forgings: Rules and expectations for trial or qualification forgings used to validate processes, tooling and inspection methods before full production.
• Production forgings: Acceptance criteria, documentation and controls for series manufacture to ensure consistent quality and traceability.
• Inspection and qualification: Guidance to support the qualification of manufacturing and inspection procedures, including the role of pre-production samples.
• Traceability and documentation: Emphasis on proper identification of forgings, records for material origin and conformity evidence to support aerospace procurement and quality systems.

Applications

EN 2157-3:1993 provides practical value across the aerospace supply chain:

• Manufacturers: Use the specification to define process qualification steps, establish acceptance criteria for production runs and maintain traceability for steel forgings.
• Quality and inspection teams: Rely on the standard to structure inspection plans, set method qualification requirements and verify conformity during pre-production and production phases.
• Design and procurement: Reference the standard when specifying material sourcing and forging requirements in procurement documents and engineering drawings.
• Certification and regulatory: Supports demonstration of consistent manufacturing and inspection practices required by aerospace regulators and prime contractors.

Benefits include clearer supplier requirements, reduced rework through validated processes, and improved confidence in forging conformity for critical aerospace parts.

Related Standards

• EN 2157-1 - General requirements for forging stock and forgings (use in conjunction with Part 3).
• EN 2157-2 - Forging stock specifications for steel (the source forging stock referenced in Part 3).
• Other aerospace material and process standards as referenced by procurement or regulatory frameworks.

For implementers, EN 2157-3:1993 should be integrated into quality plans, process qualification protocols and supplier contracts to ensure consistent, auditable production of steel forgings for aerospace use.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Steel - Forging stock and forgings - Technical specification - Part 3: Pre-production and production forgingsLuft- und Raumfahrt - Stahl - Schmiedevormaterial und Schmiedestücke - Technische Lieferbedingungen - Teil 3: Ausfallmuster- und SerienmusterstückeSérie aérospatiale - Acier - Produits destinés a la forge - Pieces forgées et pieces matricées - Spécification technique - Partie 3: Pieces typ
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