Copper Tungsten is sold in bars, plates, rounds and squares. Our stock items of copper tungsten are the 70/30 – 70% tungsten and 30% copper – the most common grade used in EDM applications. We also supply 60/40 and 75/25 grades for specific applications.
Material Grades
| Grade | Description | % | RWMA Class | Density Grams/CC | Elect Cond %IACS | Hardness |
| S5WC | Tungsten Copper | 70/30 | EDM | 14.25 | 44-52 | 90-96 RB |
| S10WC | Tungsten Copper | 75/25 | 11 | 14.80 | 42-50 | 96-99 RB |
| S30WC | Tungsten Copper | 80/20 | 12 | 15.60 | 41-49 | 99-104 RB |
| S20WC | Tungsten Copper | 78/22 | EDM | 15.56 | 48-53 | 90-100 RB |
Decimal Equivelants
| Fraction | Decimal | Fraction | Decimal |
| 1/64 | .015625 | 33/64 | .515625 |
| 1/32 | .03125 | 17/32 | .546875 |
| 3/64 | .046875 | 35/64 | .546875 |
| 1/16 | .0625 | 9/16 | .5625 |
| 5/64 | .078125 | 37/64 | .578125 |
| 3/32 | .09375 | 19/32 | .59375 |
| 7/64 | .109375 | 39/64 | .609375 |
| 1/8 | .125 | 5/8 | .625 |
| 9/64 | .140625 | 41/64 | .640625 |
| 5/32 | .15625 | 21/32 | .65625 |
| 11/64 | .171875 | 43/64 | .671875 |
| 3/16 | .1875 | 11/16 | .6875 |
| 13/64 | .203125 | 45/64 | .703125 |
| 7/32 | .21875 | 23/32 | .71875 |
| 15/64 | .234375 | 47/64 | .734375 |
| 1/4 | .250 | 3/4 | .750 |
| 17/64 | .265626 | 49/64 | .765625 |
| 9/32 | .28125 | 25/32 | .78125 |
| 19/64 | .296875 | 51/64 | .796875 |
| 5/16 | .3125 | 13/16 | .8125 |
| 21/64 | .328125 | 53/64 | .828125 |
| 11/32 | .34375 | 27/32 | .84375 |
| 23/64 | .359375 | 55/64 | .859375 |
| 3/8 | .375 | 7/8 | .875 |
| 25/64 | .390625 | 57/64 | .890625 |
| 13/32 | .40625 | 29/32 | .90626 |
| 27/64 | .421875 | 59/64 | .921875 |
| 7/16 | .4375 | 15/16 | .9375 |
| 29/64 | .453125 | 61/64 | .953125 |
| 15/32 | .46875 | 31/32 | .96875 |
| 31/64 | .484375 | 63/64 | .984375 |
| 1/2 | .500 | 1 | 1.000 |
