The Different Types of Copper Tubing Copper piping can be found in numerous appliances, such as air conditioners and refrigerators. Whether it’s soft copper or rigid copper, or used for residential purposes or commercial construction, copper pipes are a major part of any project.
Types of Copper and Properties The copper most commonly used for sheet and strip applications complies with ASTM B370. It consists of 99.9 percent copper, and is available in six tempers designated by ASTM B370 as: 060 (soft), H00 (cold rolled), H01 (cold rolled, high yield), H02 (half hard), H03 (three quarter hard), and H04 (hard).
You may be surprised to find two types of copper pipe on the home center shelf, Type L and Type M. The difference is the wall thickness of the copper pipe sizes and therefore the pressure it can handle. The exterior dimensions are identical, meaning you use the same copper fittings.