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C12000， Japanese brand C1201, Chinese brand TP1
Because trace phosphorus elements of 0.004-0.012% are added to the composition, it is suitable for use in welding products.
The conductivity is over 90%, higher than that of C12200.
If there are welding requirements and high conductivity products are needed, C12000 can be chosen
| GB | ISO | ASTM | JIS |
| TU1 | Cu-OF | C10200 | C1020 |
| T2 | Cu-ETP | C11000 | C1100 |
| TP1 | Cu-DLP | C12000 | C1201 |
| TP2 | Cu-DHP | C12200 | C1220 |
| GB | Composition(%) | ||||
| Cu | P | O | Other | ||
| TU1 | 99.97 | 0.002 | less than 0.002 | balance | |
| T2 | 99.9 | – | – | balance | |
| TP1 | 99.9 | 0.004-0.012 | – | balance | |
| TP2 | 99.9 | 0.015-0.040 | – | balance | |
| ASTM | Composition(%) | ||||
| Cu | P | O | Other | ||
| C10200 | 99.95 | 0.001-0.005 | – | balance | |
| C11000 | 99.9 | – | – | balance | |
| C12000 | 99.9 | 0.004-0.012 | – | balance | |
| C12200 | 99.9 | 0.015-0.040 | – | balance | |
| Grade（China） | Grade（Japan） | Temper | Thickness/mm | Tensile Strength Rm(N/mm2) | Elongation A1 1.3% | Hardness HV |
| T2 T3 TU1 TU2 TP1 TP2 | C1100 C1020 C1220 | O60 | more than 0.15 | no less than 195 | no less than 30 | no less than 70 |
| H01 | 215-295 | no less than 25 | 60-95 | |||
| H02 | 245-345 | no less than 8 | 80-110 | |||
| H04 | 295-395 | no less than 3 | 90-120 | |||
| H06 | no less than 350 | no less than 110 |
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