Specification for Fluxes for Brazing and Braze Welding

Description

This Specification prescribes requirements for the classification of brazing fluxes used with brazing or braze welding filler metals and is essential to today’s purchaser and welding professionals. Fifteen fluxes for brazing and braze welding are classified according to the filler metal, form, and activity temperature range. Classification is in accordance with a new classification system that employs the designator “FB” to indicate fluxes for brazing and braze welding applications. In addition to selected tests for each classification, major topics include general requirements, testing procedures, and packaging requirements. The Appendix suggests some general application guidelines. Content: Front Matter • Statement on Use of AWS American National Standards • List of Tables • List of Figures • Table of Contents • 1. Scope •Part A. General Requirements 2. Classification • 3. Acceptance • 4. Certification 5. Units of Measure and Rounding-off Procedure •Part B. Tests, Procedures, and Requirements 6. Summary of Tests • 7. Retests 8. Test Specimen • 9. Flux Sample 10. Filler Metal 11. Water Content Test 12. Particle Test 13. Adherence Test 14. Sodium Glare Test 15. Fluidity Test (for All Fluxes Except FB3-E and FB3-K) 16. Fluxing Action Test 17. Flow Test 18. Life Test •Part C. Manufacture, Identification, and Packaging• 19. Method of Manufacture 20. Forms 21. Packaging 22. Marking of Packages Appendix: Guide to AWS Specification for Fluxes for Brazing and Braze Welding