This specification covers the engineering requirements for producing brazed joints using copper as the brazing filler metal. This process has been used typically for joining carbon steels, low-alloy steels, and corrosion and heat resistant steels and alloys. It is not recommended for use on parts which will operate in service over 1000 degrees F (538 degrees C) or requiring high strength joints for service over 700 degrees F (371 degrees C), but usage is not limited to such applications.