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 pitch pipe guitar violin voice instrument string tuner classic $0.99 End Date: Wednesday May-30-2012 23:28:07 PDT Buy It Now for only: $9.99 Buy It Now | Bid now | Add to watch list |
 LOSS LEADER UKULELE PITCH PIPE FROM KALA KEEP IN TUNE THIS SUMMER $1.00 End Date: Thursday May-31-2012 11:19:40 PDT |
 VINTAGE Kratt SN9 Hawaiian Guitar Pitch Pipe E A E A C E PitchPipe $0.99 End Date: Thursday May-31-2012 19:17:40 PDT |
 NEW NEW YORK PRO GUITAR PITCH PIPE TUNER $2.82 End Date: Wednesday Jun-13-2012 12:26:27 PDT Buy It Now for only: $2.82 Buy It Now | Add to watch list |
 New Pitch Pipe Tuner Plastic White Guitar String Tuning $3.29 End Date: Tuesday May-29-2012 23:05:44 PDT Buy It Now for only: $3.29 Buy It Now | Add to watch list |
 Violin 4 Tone Plastic Pitch Pipe Pitchpipe String Tuner $3.79 End Date: Monday Jun-18-2012 6:15:09 PDT Buy It Now for only: $3.79 Buy It Now | Add to watch list |
 Violin Pitch Pipe Four Tones E A D G Tuner New $3.85 End Date: Thursday Jun-14-2012 22:27:58 PDT Buy It Now for only: $3.85 Buy It Now | Add to watch list |
 New Violin Pitch pipe pitchpipe tuner $3.86 End Date: Tuesday Jun-5-2012 7:50:36 PDT Buy It Now for only: $3.86 Buy It Now | Add to watch list |
 Performance Plus VP4 Pitch Pipe for Violin Mandolin $3.87 End Date: Saturday Jun-9-2012 19:37:56 PDT Buy It Now for only: $3.87 Buy It Now | Add to watch list |
 NEW Violin 4 Tone Pitch Pipe Pitchpipe Plastic Tuner Tuning Amazing $3.89 End Date: Thursday Jun-21-2012 8:24:19 PDT Buy It Now for only: $3.89 Buy It Now | Add to watch list |
 Wm Kratt Co Super Pitch Pipe SN 10 Spanish Guitar $0.99 End Date: Sunday Jun-3-2012 10:38:33 PDT |
 Violin Pitch Pipe Pitchpipe Tuner NEW $3.99 End Date: Thursday Jun-14-2012 23:52:29 PDT Buy It Now for only: $3.99 Buy It Now | Add to watch list |
 NEW ANGEL GUITAR TUNER TUNING PITCH PIPE WITH CASE $3.99 End Date: Monday Jun-18-2012 18:06:13 PDT Buy It Now for only: $3.99 Buy It Now | Add to watch list |
 1 Becker Guitar Pitch Pipe BGPP New item in Package $2.00 End Date: Friday Jun-1-2012 11:37:18 PDT Buy It Now for only: $2.00 Buy It Now | Add to watch list |
 New Cello Pitchpipe pitch pipe $3.39 End Date: Wednesday Jun-6-2012 7:39:46 PDT Buy It Now for only: $3.39 Buy It Now | Add to watch list |
 Violin Mandolin Pitch Pipe Tuner New $2.39 End Date: Friday Jun-1-2012 8:12:18 PDT Buy It Now for only: $2.39 Buy It Now | Add to watch list |
 New Ukulele Pitchpipe Pitch Pipe G C E A tuning $4.39 End Date: Saturday Jun-2-2012 21:42:52 PDT Buy It Now for only: $4.39 Buy It Now | Add to watch list |
 New Ukulele Pitchpipe Pitch Pipe G C E A tuning $4.50 End Date: Tuesday May-29-2012 11:03:42 PDT Buy It Now for only: $4.95 Buy It Now | Bid now | Add to watch list |
 Performnace Plus Ukulele Pitch Pipe C G E A $4.84 End Date: Sunday Jun-17-2012 22:05:43 PDT Buy It Now for only: $4.84 Buy It Now | Add to watch list |
 Becker BGPP Guitar Pitch Pipe $4.93 End Date: Wednesday Jun-13-2012 22:05:15 PDT Buy It Now for only: $4.93 Buy It Now | Add to watch list |
 Musical Instrument Tuning Music Conservarte Guitar Pitch pipe Strings Tone Tune $4.97 End Date: Tuesday Jun-19-2012 9:48:55 PDT Buy It Now for only: $4.97 Buy It Now | Add to watch list |
 Pitch pipe $0.99 End Date: Wednesday May-30-2012 0:04:45 PDT |
 Lauren PP10 Guitar Pitch Pipe $2.99 End Date: Friday Jun-22-2012 8:48:37 PDT Buy It Now for only: $2.99 Buy It Now | Add to watch list |
 Vintage WM Kratt SN 10 Guitar Super Pitch Pipe $0.99 End Date: Monday May-28-2012 7:56:43 PDT |
 Guitar Tuner Acoustic Guitar String Tuning Pitch Pipe $4.99 End Date: Sunday Jun-17-2012 19:20:05 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 Alice Acoustic Guitar String Tuning Pitch Pipe $4.99 End Date: Monday Jun-18-2012 19:58:15 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 bluegrass pitch pipe GDGBD Synchrotone NIB $4.99 End Date: Thursday Jun-21-2012 13:10:03 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 NEW METAL TUNING UKULELE MANDOLIN 4 NOTE PITCH PIPE WASHBURN $5.00 End Date: Thursday Jun-7-2012 3:49:06 PDT Buy It Now for only: $5.00 Buy It Now | Add to watch list |
 Performance Plus Guitar Pitch Pipe $5.09 End Date: Friday Jun-15-2012 1:50:20 PDT Buy It Now for only: $5.09 Buy It Now | Add to watch list |
 Becker BVMPP Violin Mandolin Pitch Pipe $5.11 End Date: Wednesday Jun-20-2012 22:05:17 PDT Buy It Now for only: $5.11 Buy It Now | Add to watch list |
 Winter 1978 Sweet Adelines Pitch Pipe Magazine Vol XXIX 3 Shondells $2.50 End Date: Saturday May-26-2012 8:49:12 PDT Buy It Now for only: $2.50 Buy It Now | Add to watch list |
 New York Pro Violin Pitch Pipe $2.99 End Date: Monday Jun-11-2012 11:17:47 PDT Buy It Now for only: $2.99 Buy It Now | Add to watch list |
 Performance Plus Electric or Acoustic Guitar Pitch Pipe $5.68 End Date: Sunday Jun-17-2012 2:05:32 PDT Buy It Now for only: $5.68 Buy It Now | Add to watch list |
 1928 Marine Band Pitch Pipe Musical Instrument Ad $2.00 End Date: Saturday Jun-2-2012 20:29:01 PDT Buy It Now for only: $2.00 Buy It Now | Add to watch list |
 Ukulele Pitch Pipe Soprano $4.95 End Date: Monday Jun-18-2012 13:23:09 PDT Buy It Now for only: $4.95 Buy It Now | Add to watch list |
 FREY PITCH PIPE A 440 SPANISH GUITAR HARMONICA NEWARK NJ $5.99 End Date: Sunday May-27-2012 19:46:07 PDT |
 Alice 13 Tone Pitch Pipe Tuner Tuning Guitar Black Base $6.39 End Date: Monday May-28-2012 23:38:31 PDT Buy It Now for only: $6.39 Buy It Now | Add to watch list |
 NEW PERFORMANCE PLUS VP4P VIOLIN INSTRUMENT PITCH PIPE COMPACT NEW SALE $3.99 End Date: Thursday Jun-21-2012 13:09:46 PDT Buy It Now for only: $3.99 Buy It Now | Add to watch list |
 Ukulele Pitch Pipe $3.75 End Date: Saturday May-26-2012 10:39:46 PDT Buy It Now for only: $3.75 Buy It Now | Add to watch list |
 13 Tone Guitar Pitch Pipe Tuner Tuning C C With Case $6.56 End Date: Monday May-28-2012 23:46:05 PDT Buy It Now for only: $6.56 Buy It Now | Add to watch list |
 SOPRANO UKULELE TUNING PITCH PIPE UKE TUNER NEW $3.89 End Date: Friday Jun-1-2012 19:06:53 PDT Buy It Now for only: $3.89 Buy It Now | Add to watch list |
 NEW Ukulele Ukelele Pitch Pipe G C E A Tuning $3.99 End Date: Thursday May-31-2012 7:25:16 PDT Buy It Now for only: $3.99 Buy It Now | Add to watch list |
 King Lien Pitch Pipe For Acoustic Or Electric Guitar With Case 6 Pitches NEW $4.99 End Date: Wednesday Jun-13-2012 14:39:52 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 Guitar Pitch Pipe A001P $6.95 End Date: Saturday May-26-2012 19:11:14 PDT Buy It Now for only: $6.95 Buy It Now | Add to watch list |
 New York Pro Violin Pitch Pipe $6.95 End Date: Saturday May-26-2012 19:11:14 PDT Buy It Now for only: $6.95 Buy It Now | Add to watch list |
 Performance Plus Ukulele Pitch Pipe Standard C Tuning $6.95 End Date: Thursday Jun-14-2012 12:34:09 PDT Buy It Now for only: $6.95 Buy It Now | Add to watch list |
 Harris Fast Pitch Electronic Pitch Pipe for Guitar HF EP6 BLUE $6.99 End Date: Saturday May-26-2012 10:47:35 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 Harris Fast Pitch Electronic Pitch Pipe for Guitar HF EP6 PINK $6.99 End Date: Saturday May-26-2012 10:49:34 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 Harris Fast Pitch Electronic Pitch Pipe for Guitar HF EP6 SILVER $6.99 End Date: Saturday May-26-2012 10:51:29 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 Harris Fast Pitch Electronic Pitch Pipe for Guitar HF EP6 GOLD $6.99 End Date: Saturday May-26-2012 10:53:24 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 Harris Fast Pitch Electronic Pitch Pipe for Guitar HF EP6 BLACK $6.99 End Date: Saturday May-26-2012 10:55:50 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 ELECTRIC OR ACOUSTIC GUITAR 6 NOTE PITCH PIPE FOR TUNING $7.00 End Date: Wednesday May-30-2012 10:52:44 PDT Buy It Now for only: $7.00 Buy It Now | Add to watch list |
 NEW METAL 5 STRING BANJO PITCH PIPE $7.00 End Date: Saturday Jun-9-2012 13:20:49 PDT Buy It Now for only: $7.00 Buy It Now | Add to watch list |
 NEW KALA PITCH PIPE FOR UKULELE TUNING SOPRANO CONCERT TENOR A MUST HAVE ACC $4.99 End Date: Wednesday Jun-13-2012 13:34:46 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 FASTPITCH Electronic Pitch Pipe Guitar NEW Grey $5.25 End Date: Saturday May-26-2012 3:47:05 PDT Buy It Now for only: $5.25 Buy It Now | Add to watch list |
 FASTPITCH Electronic Pitch Pipe Guitar NEW Black $5.25 End Date: Saturday May-26-2012 3:47:47 PDT Buy It Now for only: $5.25 Buy It Now | Add to watch list |
 Qwik Tune Automatic Guitar Tuner w Pitch Pipe $3.79 End Date: Saturday May-26-2012 5:52:54 PDT Buy It Now for only: $3.79 Buy It Now | Add to watch list |
 Becker Violin and Mandolin Pitch Pipe Plastic $4.30 End Date: Saturday May-26-2012 18:09:04 PDT Buy It Now for only: $4.30 Buy It Now | Add to watch list |
 VTG BEE POCKET PITCH PIPE MUSICAL INSTRUMENT W CASE $5.00 End Date: Sunday May-27-2012 13:17:49 PDT Buy It Now for only: $5.00 Buy It Now | Add to watch list |
 ACOUSTICELECTRICBASS GUITAR PITCH PIPE TUNER NEW $3.88 End Date: Thursday Jun-14-2012 9:05:02 PDT Buy It Now for only: $3.88 Buy It Now | Add to watch list |
 Becker Pitch Pipe Tuner for Guitar $3.95 End Date: Monday Jun-4-2012 9:19:12 PDT Buy It Now for only: $3.95 Buy It Now | Add to watch list |
 Performance Plus Pitch Pipe Tuner for Violin Mandolin $3.95 End Date: Saturday Jun-9-2012 18:19:23 PDT Buy It Now for only: $3.95 Buy It Now | Add to watch list |
 Conservarte Guitar Pitch Pipe $7.83 End Date: Wednesday Jun-13-2012 22:35:13 PDT Buy It Now for only: $7.83 Buy It Now | Add to watch list |
 Plastic White Guitar String Tuning Pitch Pipe Tuner $7.85 End Date: Tuesday Jun-5-2012 13:16:04 PDT Buy It Now for only: $7.85 Buy It Now | Add to watch list |
 NY PRO CELLO TENOR BANJO Pitch Pipe Tuner ADGC NEW $4.88 End Date: Monday Jun-4-2012 12:42:15 PDT Buy It Now for only: $4.88 Buy It Now | Add to watch list |
 KALA UKULELE Pitch Pipe TUNER Standard G C E A $7.95 End Date: Thursday Jun-14-2012 12:34:09 PDT Buy It Now for only: $7.95 Buy It Now | Add to watch list |
 Vintage German Made Wooden Base Pitch Pipe E A D G B E $3.99 (1 Bid) End Date: Sunday May-27-2012 21:14:56 PDT |
 SOPRANO UKULELE UKE PITCH PIPE TUNER INSTRUCTIONS STAY IN TUNE ALL THE TIME $4.99 End Date: Thursday Jun-14-2012 21:08:57 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 PUERTO RICAN CUATRO PITCH PIPE TUNER w INSTRUCTIONS MAKES TUNING EASY $4.99 End Date: Monday Jun-18-2012 22:03:07 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 Violin Mandolin Pitch Pipe Tuner EADG Instructions NEW $4.99 End Date: Thursday Jun-21-2012 11:58:37 PDT Buy It Now for only: $4.99 Buy It Now | Add to watch list |
 Crystalcello PV10 Violin Pitch Pipe $7.99 End Date: Thursday Jun-14-2012 15:41:22 PDT Buy It Now for only: $7.99 Buy It Now | Add to watch list |
 Four Tone Plastic Pitch Pipe Tuner Fitting for Violin $8.16 End Date: Sunday Jun-10-2012 21:13:21 PDT Buy It Now for only: $8.16 Buy It Now | Add to watch list |
 Chromatic 13 Key Pitch Pipe $8.50 End Date: Tuesday May-29-2012 11:02:13 PDT Buy It Now for only: $9.40 Buy It Now | Bid now | Add to watch list |
 Ukulele Strings Black Nylon GET FREE PITCH PIPE $5.75 End Date: Saturday May-26-2012 10:40:06 PDT Buy It Now for only: $5.75 Buy It Now | Add to watch list |
 Ukulele Strings Clear Nylon GET FREE PITCH PIPE $5.75 End Date: Saturday May-26-2012 10:40:26 PDT Buy It Now for only: $5.75 Buy It Now | Add to watch list |
 Crystalcello PV10 Violin Pitch Pipe $3.99 End Date: Monday Jun-11-2012 21:46:25 PDT Buy It Now for only: $3.99 Buy It Now | Add to watch list |
 Crystalcello PC10 Viola Cello Pitch Pipe $3.99 End Date: Monday Jun-11-2012 21:51:45 PDT Buy It Now for only: $3.99 Buy It Now | Add to watch list |
 Chromatic 13 key Pitch Pipe Pitchpipe C C in case $8.99 End Date: Tuesday Jun-12-2012 17:52:43 PDT Buy It Now for only: $8.99 Buy It Now | Add to watch list |
 TEMPUS CHROMATIC PITCH PIPE A 440 13 KEYS $6.79 End Date: Tuesday Jun-12-2012 6:26:44 PDT Buy It Now for only: $6.79 Buy It Now | Add to watch list |
 Menzel Brand Chromatic Harmonica Pitch Pipe With Case $8.50 End Date: Monday May-28-2012 16:58:46 PDT Buy It Now for only: $8.50 Buy It Now | Add to watch list |
 PITCH PIPE MADE IN INDIA $6.99 End Date: Saturday May-26-2012 11:58:20 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 Mandolin Pitch Pipe 4 Tones G D A E Tuner MP4P NEW $5.77 End Date: Saturday May-26-2012 10:16:19 PDT Buy It Now for only: $5.77 Buy It Now | Add to watch list |
 Violin Pitch Pipe Four Tones E A D G Tuner VP4 NEW $5.77 End Date: Thursday Jun-7-2012 8:01:04 PDT Buy It Now for only: $5.77 Buy It Now | Add to watch list |
 Ukulele Pitch Pipe Four Tones A E C G Tuner UP4P $5.77 End Date: Friday Jun-8-2012 9:44:18 PDT Buy It Now for only: $5.77 Buy It Now | Add to watch list |
 Violin Mandolin Pitch Pipe Four Tones E A D G $5.77 End Date: Friday Jun-8-2012 9:44:22 PDT Buy It Now for only: $5.77 Buy It Now | Add to watch list |
 Super Sensitive Violin Pitch Pipe EADG Part 9240 $7.38 End Date: Friday Jun-8-2012 16:43:34 PDT Buy It Now for only: $7.38 Buy It Now | Add to watch list |
 Guitar Bass Tuning 13 Tones Pitch Pipe F F Tuner w Case $9.92 End Date: Sunday Jun-3-2012 4:57:06 PDT Buy It Now for only: $9.92 Buy It Now | Add to watch list |
 Chromatic Pitch Pipe Music Toner Tool Tuner Bridges Guitar Acoustic Scale $9.95 End Date: Saturday Jun-2-2012 16:28:26 PDT Buy It Now for only: $9.95 Buy It Now | Add to watch list |
 Vintage Frey Music Co Superior Pitch Pipe Spanish Guitar A 440 $9.99 End Date: Friday Jun-1-2012 9:24:50 PDT Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 VTG Pitch Pipe WM Kratt A D F B $9.99 End Date: Friday Jun-1-2012 17:16:43 PDT Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 Pyramid A 440 Pitch pipe viola cello case $9.99 End Date: Friday Jun-8-2012 18:57:06 PDT Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 WM KRATT STAGGERED UKULELE PITCH PIPE $9.99 End Date: Thursday Jun-21-2012 6:01:44 PDT Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 VINTAGE CELLO VIOLA TENOR BANJO PITCH PIPE PYRAMID BRAND $8.00 End Date: Tuesday Jun-5-2012 13:07:49 PDT Buy It Now for only: $8.00 Buy It Now | Add to watch list |
 Chromatic Pitch Pipe with Carrying Case NEW $7.49 End Date: Saturday Jun-9-2012 21:21:49 PDT Buy It Now for only: $7.49 Buy It Now | Add to watch list |
 Round 13 Key F F Pitch Pipe Musical Instrument Tuner $10.46 End Date: Wednesday Jun-13-2012 19:49:40 PDT Buy It Now for only: $10.46 Buy It Now | Add to watch list |
 Tempus CP1 Chromatic Pitch Pipe with Note Selector $6.99 End Date: Sunday Jun-3-2012 14:23:01 PDT Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 Chromatic Pitch Pipe with Carrying Bag NEW $10.59 End Date: Thursday May-31-2012 4:48:28 PDT Buy It Now for only: $10.59 Buy It Now | Add to watch list |
 Chromatic 13 Pitch Pipe Pitchpipe C C with case $7.89 End Date: Wednesday Jun-20-2012 23:13:15 PDT Buy It Now for only: $7.89 Buy It Now | Add to watch list |
 Glaesel Violin Pitch Pipe $10.95 End Date: Monday Jun-18-2012 23:28:11 PDT Buy It Now for only: $10.95 Buy It Now | Add to watch list |
You can also check out Amazon for information on Pitch Pipe.
 Chromatic Pitch Pipe Sale Price: $10.98  Eligible for free shipping!Availability: Usually ships in 24 hours  |
 Kratt Pitch Pipe Tuner - MK2S_52894 List Price: Sale Price: $18.34 You save: $13.01 (41%) Eligible for free shipping!Availability: Temporarily out of stock. Order now and we'll deliver when available. We'll e-mail you with an estimated delivery date as soon as we have more information. Your credit card will not be charged until we ship the item. |
 Kratt Master Key Pitch Pipe F to F List Price: Sale Price: $16.12 You save: $11.33 (41%) Eligible for free shipping!Availability: Usually ships in 2-3 business days |
 Kratt Master Key Pitch Pipe C to C by Kratt List Price: Sale Price: $19.11 You save: $7.84 (29%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
 Mahalo PP-1 Pitch Pipe List Price: Sale Price: $1.75 You save: $0.75 (30%) Eligible for free shipping!Availability: Usually ships in 24 hours |
 Becker BGPP Guitar Pitch Pipe List Price: Sale Price: $2.47 You save: $2.48 (50%) Eligible for free shipping!Availability: Usually ships in 24 hours |
 Kratt Master Key Pitch Pipe C to C List Price: Sale Price: $17.10 You save: $10.35 (38%) Eligible for free shipping!Availability: Usually ships in 2-3 business days |
 ViolinSmart Violin Pitch Pipe Sale Price: $4.99 Eligible for free shipping!Availability: Usually ships in 1-2 business days |
 Performance Plus Guitar Pitch Pipe List Price: Sale Price: $2.00 You save: $1.95 (49%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
 New Violin Pitch Pipe Pitchpipe Tuner Sale Price: $1.35 Eligible for free shipping!Availability: Usually ships in 1-2 business days |
Pvc Pipes and Fittings Products - PVC Pipe For Home Repair
Pvc Pipes and Fittings Products - PVC Pipe For Home Repair - Copper Sheet Buying Guide
We are going to cover some rather technical terms like: alloy, temper, hardness, gauge and finish. Please stick with me through this brief article and you will really know what kind of copper you need for your application.Visit to here now - http://pvcpipefitting.blogspot.com
Alloy. Copper sheet, foil, bar, rod and tube is available in many different alloys. These different alloys give certain physical properties to copper it doesn't usually have, but those new properties often bring new limitations as well. What makes the alloy discussion a little easier is that 99% of the copper sold in the United States is represented by the three alloys listed below.
Most of the copper sold today in the United States is alloy C11000, also known as Electrolytic-Tough-Pitch. Plain and simply, C11000 is 99.9% pure copper. It is an excellent electrical conductor, makes a fine looking kick plate on your front door, does a great job as a back splash in your kitchen, makes a very classy looking rain gutter and adorns some of the finest looking roofs in the world.
Copper used for tube and pipe is usually alloy C12200. You get this alloy by adding a very small amount of phosphorus to pure copper. This makes the copper easier to weld and braze. Unfortunately, it also makes the copper considerably less conductive. Generally speaking, you rarely see this alloy being used for electrical applications, but if you need to weld or braze, this alloy is your best option.
If you are going to turn or machine copper, C14500 is your alloy. If copper is alloyed with a small amount of tellurium it greatly improves the ability of copper to "make chips". Pure copper (alloy C11000) tends to be "gummy" (I apologize for using such a technical term) when machining. This gumminess means you have to slow the machining process down quite a bit. Pure copper is also hard on machine tools, which adds to the expense of machining. C14500 is not quite as conductive as pure copper, but it is relatively close.
An interesting fact about copper alloys, if you add a little zinc to the metal - you get brass.
Temper. Basically, the Temper of a metal refers to its hardness. The two extremes of Temper are denoted as "hard" and "soft". While the Copper Development Association has installed a numbering convention H01(soft) to H04(hard), most people in the industry simply refer to the degree of hardness. "Hey, I'll take some ‘quarter-hard' copper sheet," is really all you have to say to your local copper mill* to call out the Temper.
So, why does anybody even worry about Temper? To a large degree, the hardness of the metal determines the application. If you were to make a beautiful pot rack out of soft Temper copper bars and chose to hang your grandmother's favorite cast iron frying pan on your new creation, the weight of the frying pan could well deform the rack. Bottom line, if your copper project involves supporting any kind of weight, stick to harder Tempers.
On the other hand, if you are interested in making a copper etching or simply forming the copper by hand, you would be much better off with a softer Temper. Softer Tempers are also easier to cut as well. For decorative and craft applications that do not require supporting much weight, soft Temper should be your choice.
One final point about Temper, because of the end use of the product, copper bar is generally available only in the harder Tempers and copper sheet in softer Tempers. This has to do with how the two different forms of the metal are used.
Gauge, Oz. and Inches. Calling out the gauge of the metal is another way of saying the thickness. It is important to keep in mind that with gauge, the larger the number the thinner the material. 30 gauge copper sheet is much thinner than 16 gauge. To make matters even more confusing, the roofing industry measure copper thickness in ounces per square foot! 16 oz copper sheet is a very common size of roofing copper.
Finish. If you have ever walked in the lower level of a fancy department store and happened to see the gorgeous copper pots hanging in the kitchen department, you have seen an unnatural copper finish. Unless copper is treated with a synthetic lacquer, it will not have that deep mirror like finish. Also, if that lacquer finish should ever crack (even a very small one) and air reaches the copper, it will discolor fairly rapidly.
Generally, the finish of copper bar and sheet will provide a dull reflection. Occasionally, the metal will also have a slight waviness to it, although it will be very smooth. Over time the metal will darken with exposure to air. The oxygen in the air is actually corroding the metal. Over a number of years a greenish patina will form on the metal. Most people find the character gained by copper through this corrosion process to be quite attractive. As a matter of fact, you can actually purchase copper that has been treated with chemicals which greatly accelerate the corrosion process. If you want that greenish finish on that copper bay window roof right away, not a problem, chemical engineering has provided the product for you. If you would prefer more of a grayish patina, that's available as well.Pvc Pipes and Fittings Products - PVC Pipe For Home Repair - Copper Sheet Buying Guide .
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