Take either an SOS pad or a wire brush and rough up both the inside of the brass fitting and outside of copper pipe, put the copper pipe into the fitting and solder around it.
Yes, you can either solder them or fit mechanical (threaded) fittings.
Certainly look up Flagg Flow T.P Fittings T.P thread-less copper fittings will FIT on schedule 40/80 /120 Brass pipe Ideally it should be brazed but soldering will hold domestic water pressures Also many solder fittings ARE CAST BRASS rather then wrought copper
Always and only solder.
*Yes you can solder brass, as long as it isn't the decorative polished brass. They have used brass fittings in plumbing for years and years. It has the same characteristics as copper.
Any pipe dope will work but Teflon tape is a lot cleaner.
Yes, brass can be soldered to copper using a soldering iron and appropriate soldering techniques.
No, pure brass is difficult to solder with plumbing solder because it has a high melting point and poor wettability with typical lead-based solders. It is recommended to use an appropriate flux and solder with a higher silver content for better adhesion and conductivity when soldering pure brass.
For basic plumbing fittings, either copper or brass fittings is your best bet. Copper is more for just water lines, and brass is for various uses, but more expensive. Sites like DrillSpot.com are great places to start looking.
Copper fittings, electromagnets, electric wires, lead-free solder (alloyed with tin), integrated circuits.
Brass is an alloy of Copper and Zinc. Originally solder is an alloy of Tin and Lead. Lead-free solders in commercial use may contain tin, copper, silver, bismuth, indium, zinc, antimony, and traces of other metals.
Pneumatic fittings are typically made from a type of brass known as yellow brass, which contains copper and zinc. This alloy is favored for its excellent corrosion resistance, strength, and machinability, making it suitable for high-pressure applications. Some fittings may also use red brass, which has a higher copper content for added durability. The choice of brass can depend on the specific requirements of the pneumatic system, including pressure ratings and environmental conditions.
The compound symbol for solder can vary depending on the specific composition. Common solder compounds include tin-lead solder (Sn-Pb) and lead-free solder such as tin-silver-copper (Sn-Ag-Cu) or tin-copper (Sn-Cu).