Harris Products Group, SSBF1, Brazing Flux, Paste, Black, 1 lb, 1050 F-1700 F (566 C-925 C)

Stay-Silv® black paste brazing flux is an all-purpose, high-temperature, homogenous flux for use in silver brazing. It is formulated to provide smooth flux application, even coverage, and excellent protection during brazing. The addition of boron extends the active life of the flux enabling it to withstand longer heating cycles. This makes it an ideal choice for induction brazing where intense localized heating is a factor, or heavy parts that often require longer heating time. Stay-Silv black flux is recommended for brazing copper and copper alloys, (except aluminum bronze), steel, and other ferrous base metals. Stay It is often used in brazing stainless steel, nickel alloys, and tungsten carbide. Stay-Silv black flux is used with many high silver brazing filler metals of the AWS A5.8 BAg classifications and ISO 17672 class Ag alloys. It is also suitable for use with many phosphorus-copper-silver alloys, (AWS BCuP and ISO CuP), for brazing copper to brass. Black flux turns clear, (transparent), close to brazing application temperature. This is a useful indicator in timing braze wire application.

Features

• Turns clear close to brazing application temperature indicating prime braze wire application
• Can also be used with many phosphorus-copper-silver alloys
• High-temperature, all-purpose black flux for silver brazing
• Conforms to the EU RoHS directive
• Formulated for applications where the work is subjected to rapid, localized heating.
• Recommended for brazing copper, copper alloys (except aluminum bronze), steel, stainless steel, nickel alloys, tungsten carbide and other ferrous base metals
• Use with stainless steel, carbide, heavy parts, prolonged heating cycles.
• Provides smooth flux application,even coverage and excellent protection during brazing
• Activity range of 1050°F-1700°F (566°C-925°C)
• Ideal for applications where large amounts of refractory oxides may form

Applications

• Stainless steel
• Carbides
• Silver brazing
• Heavy parts

• Active Temperature Range: 1050 F-1700 F (566 C-925 C)
• Size: 1 lb.
• Material: Paste flux
• Chemical Composition: Water 15-25%; Potassium Borates 50-75%; Potassium Fluorides 10-20%; Boric Acid 1-3%; Boron 1-3%
• Color: Black
• Classification: AWS A5.31 FB3 C; AMS 3411; Federal Spec O-F-499 Type B; EN 1045 Type FH12
• RoHS Compliant: No
• Country of Origin: US
• Made in USA: Yes
• Warranty: 1 Year
• Shelf Life: 2 years from date of manufacture

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