EN 3889:2001

Overview

EN 3889:2001 is a European Standard developed by CEN, specifying requirements for Steel FE-WM3801 (X5CrNiCu17-4) as a filler metal for welding, specifically tailored for aerospace applications. This standard is part of the broader aerospace series and aligns with EN 4258 for material standardization and EN 4500-5 for drafting rules. It ensures quality, consistency, and suitability of this steel filler metal when applied in the manufacture and repair of aerospace components.

Key Topics

• Material Designation: The standard focuses on Steel FE-WM3801, identified with the chemical composition X5CrNiCu17-4, combining chromium, nickel, copper, and other alloying elements for enhanced performance in aerospace welding.
• Chemical Composition:
  • Carbon (C), Silicon (Si), Manganese (Mn), Phosphorus (P), Sulfur (S), Chromium (Cr), Molybdenum (Mo), Nickel (Ni), Copper (Cu), Niobium/Tantalum (Nb/Ta), and iron (Fe) content precisely defined.
• Form and Production: Filler metals are supplied as cold drawn wire and filler rods, melted by an air melting method to ensure material purity.
• Technical Specification Compliance: This steel filler metal meets the technical specifications outlined in EN 3879, guaranteeing quality for aerospace welding.
• Heat Treatment and Delivery Conditions: The standard specifies cold drawing and annealing processes, with designated delivery codes to maintain material properties during transportation.
• Testing and Inspection: Includes uniformity in batch production, material verification, dimensional checks, and defect inspections based on relevant accompanying standards.
• Product Qualification: Qualification procedures are performed in accordance with EN 2043, requiring agreement between manufacturer and purchaser to ensure compliance and suitability.

Applications

Steel FE-WM3801 (X5CrNiCu17-4) filler metal, compliant with EN 3889:2001, is primarily used in:

• Aerospace Industry Welding: It serves as an essential welding filler metal for the joining and repair of critical aerospace components requiring high strength, corrosion resistance, and mechanical reliability.
• Structural Components: Suitable for assembling structural parts where durability and precision weld integrity are mandatory.
• High-Performance Alloy Fabrication: The chemical composition supports enhanced weldability and alloy performance under demanding aerospace conditions.
• Manufacturing and Maintenance: Used in both original manufacturing processes and in-service maintenance, ensuring longevity and safety of aerospace equipment.

Related Standards

• EN 4258: Aerospace series - General organization of metallic materials standardization.
• EN 4500-5: Aerospace series - Specific drafting and presentation rules for steel materials.
• EN 3879: Aerospace series - Technical specification for filler metals used in welding.
• EN 2043: Aerospace series - General requirements for semi-finished metallic product qualification.

These intertwined standards collectively support strict quality assurance protocols, material traceability, and uniformity to meet aerospace industry demands.

Keywords: EN 3889:2001, Steel FE-WM3801, X5CrNiCu17-4, aerospace welding filler metal, filler metal for welding, aerospace steel standards, welding consumables aerospace, aerospace material standards, EN filler metals, steel welding wire aerospace