- High Temperature Flux Tenacity 20 from Johnson Matthey

Johnson Matthey Tenacity™ No.20 Flux Powder is a high temperature brazing flux suitable for use with copper based brazing filler metals. Typically Tenacity #20 is used for brazing or bronze welding of mild steel and copper components with brass type brazing filler metals such as Argentel™.
Tenacity # 20 is effective on copper and copper based alloys, mild and low alloy steels and tungsten carbide with alloys melting between 750-950 C.
Conforms to: EN 1045: FH21
Working range: 750-1000C

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