Aerospace series - Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) - Filler metal for brazing - Powder or paste

This standard specifies the requirements relating to:
Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3)
Filler metal for brazing
Powder or paste
for aerospace applications.

Luft- und Raumfahrt - Nickelbasislegierung NI-B41202 (NiCr14Fe5Si5B3) - Hartlot in Form von Pulver oder Paste

Série aérospatiale - Alliage base nickel NI-B41202 (NiCr14Fe5Si5B3) - Métal d'apport de brasage - Poudre ou pâte

Aerospace series - Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) - Filler metal for brazing - Powder or paste

General Information

Status
Published
Publication Date
31-May-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-Jun-2001
Due Date
01-Jun-2001
Completion Date
01-Jun-2001
Ref Project
EN 3920:2001 - Aerospace series - Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) - Filler metal for brazing - Powder or paste

Overview

EN 3920:2001 (CEN) is an aerospace series standard that specifies the requirements relating to the nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) used as a filler metal for brazing in powder or paste form. The document is targeted at aerospace applications where high-reliability brazed joints are required. It defines the material designation and scope for procurement, quality control and application of this specific Ni-based brazing alloy.

Key Topics and Requirements

While the standard itself sets the formal requirements for NI-B41202, typical technical topics and requirements addressed include:

  • Material identification: alloy designation NI-B41202 / NiCr14Fe5Si5B3 and intended brazing filler-metal use.
  • Physical form: supplied as powder or paste, with specifications for form-dependent handling and application.
  • Chemical composition: confirmation that the filler metal conforms to the NiCr14Fe5Si5B3 composition (nickel-chromium-iron-silicon-boron system).
  • Manufacturing and quality control: requirements for consistent production, batch traceability, and conformity to aerospace manufacturing practices.
  • Packaging and labeling: correct identification, storage instructions and handling precautions for powder or paste forms.
  • Inspection and testing: acceptance criteria and test methods to verify composition, physical condition and suitability for brazing (e.g., cleanliness, contamination limits).
  • Safety and handling: recommendations for safe use, storage and transport of powder or paste brazing filler metals (including contamination control).

Note: EN 3920:2001 provides the formal specification; precise test methods, numerical limits or process parameters are in the standard text.

Applications

EN 3920:2001 is used where reliable, high-temperature brazed joints are required in aerospace systems. Typical applications include:

  • Brazing of airframe and engine components exposed to elevated temperatures and corrosive environments
  • Assembly and repair of turbomachinery, ducts, and heat exchangers
  • Manufacturing processes where powder or paste filler metals are preferred for precision joining or vacuum/HIP brazing

Who Uses This Standard

  • Aerospace engineers and designers specifying brazing materials
  • Metallurgists and materials engineers responsible for joint integrity
  • Quality assurance and procurement teams verifying supplier compliance
  • Brazing technicians and production managers implementing brazing processes

Related Standards

EN 3920:2001 is part of the aerospace materials series and is typically used alongside other aerospace brazing and materials standards (CEN/EN and industry-specific specifications) to ensure complete process, testing and performance requirements are met.

Keywords: EN 3920:2001, NI-B41202, NiCr14Fe5Si5B3, nickel base alloy, filler metal for brazing, powder paste, aerospace brazing, CEN standard.

Frequently Asked Questions

SIST EN 3920:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) - Filler metal for brazing - Powder or paste". This standard covers: This standard specifies the requirements relating to: Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) Filler metal for brazing Powder or paste for aerospace applications.

This standard specifies the requirements relating to: Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) Filler metal for brazing Powder or paste for aerospace applications.

SIST EN 3920:2001 is classified under the following ICS (International Classification for Standards) categories: 49.025.15 - Non-ferrous alloys in general. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 3920:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Nickel base alloy NI-B41202 (NiCr14Fe5Si5B3) - Filler metal for brazing - Powder or pasteLuft- und Raumfahrt - Nickelbasislegierung NI-B41202 (NiCr14Fe5Si5B3) - Hartlot in Form von Pulver oder PasteSérie aérospatiale - Alliage base nickel NI-B41202 (NiCr14Fe5Si5B3) - Métal d'apport de brasage - Poudre ou pâteAe
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