Space product assurance - Processing and quality assurance requirements for hard brazing of metallic materials for flight hardware

This Standard specifies the processing and quality assurance requirements for brazing processes for space flight applications. Brazing is understood as the joining and sealing of materials by means of a solidification of a liquid filler metal. The term brazing in this standard is used as equivalent to soldering, in cases that the filler materials have liquidus temperatures below 450 °C. Brazing and soldering are allied processes to welding and this standard is supplementing the standard for welding ECSS-Q-ST-70-39. This standard does not cover requirements for: • Joining processes by adhesive bonding (ECSS-Q-ST-70-16), • Soldering for electronic assembly purposes (ECSS-Q-ST-70-61), • Soldering used in hybrid manufacturing (ESCC 2566000).