If the sound is dull then you have annealed the copper properly.
Softening copper sheet.
How to soften copper step 1.
In general copper alloys exhibit increased strength proportional to the amount and the nature of the alloying element.
The easy test to see if it has softened is to tap it with a screwdriver or something similar.
Copper sheets plates are also noted for their high electrical and thermal conductivity and good corrosion resistance.
Copper sheets can also be hammered tooled or embossed for added texture and decorative or functional appeal and come in many thicknesses from very thin copper foil to thick copper plate.
At basic copper we sell pure copper c110 other alloys and tempers available upon request.
110 copper sheet plate is widely known for its architectural applications whereas the familiar green patina appearance is acheived when exposed to the elements copper sheets and plates have excellent hot or cold workability and is ductile when heated.
060 soft h00 cold rolled h01 cold rolled high yield h02 half hard h03 three quarter hard and h04 hard.
Deep drawing coining stretching and bending are common methods used.
12 x12 copper sheet metal lead free 2 16 ounce workable copper sheets for jewelry crafts repairs enameling electrical 4 5 out of 5 stars 31 36 00 36.
However the amount time that you ll need to heat the copper for will increase proportionately with the thickness of the copper.
It consists of 99 9 percent copper and is available in six tempers designated by astm b370 as.
The copper most commonly used for sheet and strip applications complies with astm b370.
Slowly open the valve on the propane torch.
The annealing process can work to soften any piece of copper regardless of its thickness or size.
Storm s copper sheet is manufactured to the astm american society for testing and materials b187 b152 and b283 09 specification standards for copper and copper alloy.
Adjust the flame on the torch so it s an inch to 2 inches long.
Certificate of conformance provided upon request other alloys and tempers available upon request.
Hold the copper firmly.
In brasses bronzes nickel silvers copper nickels and other alloy families strength is increased in proportion to the amount of cold work.
You ll need a very hot but rather gentle flame.
For example you may only need to heat a thin jewelry grade piece of copper for 20 seconds to anneal it.
Our c11000 copper is 99 90 pure copper and 04 oxygen for hard drawn sheet and plate offering high thermal and electrical conductivity with low ground resistance.
They have a bare smooth commercial finish are annealed soft malleable annealed copper is much more pliable and workable than non annealed copper and manufactured to astm b152.
Fill the basin up with cold water and set it near your work station.
It also comes in many alloys that blend other metals with copper.
