Grade A copper must conform to the chemical composition of one of the following standards:
- BS EN 1978:1998 – Cu-CATH-1
- GB/T 467-2010 – Cu-CATH-1
- ASTM B115-10 – cathode Grade 1
Deliverable under the shape of Cathodes, with a tolerance of +/-2%.
All copper deliverable against LME contracts must be of an LME-approved brand.
Quality: BS EN 1978:1998 Copper Cathodes (Cathode grade designation Cu-CATH-1)
| Element |
Composition, % maximum |
| Cu |
– |
| Ag |
0.0025 |
| As |
0.0005(1) |
| Bi |
0.00020(2) |
| Cd |
(1) |
| Co |
(3) |
| Cr |
(1) |
| Fe |
0.0010(3) |
| Mn |
(1) |
| Ni |
(3) |
| P |
(1) |
| Pb |
0.0005 |
| S |
0.0015(4) |
| Sb |
0.0004(1) |
| Se |
0.00020(2) |
| Si |
(3) |
| Sn |
(3) |
| Te |
0.00020(2) |
| Zn |
(3) |
| Sum of elements listed in this table class=’uk-table’ other than Cu |
0.0065 |
- (As + Cd + Cr + Mn + P + Sb) maximum 0.0015%
- (Bi + Se + Te) maximum 0.0003%, hoặc (Se + Te) maximum 0.00030%
- (Co + Fe + Ni + Si + Sn + Zn) maximum 0.0020%
- The Sulphur content shall be determined on a cast sample
Quality: GB/T 467-2010 Copper Cathode
(High-Purity Copper Cathode (Cu-CATH-1)
| Element Group |
Impurity Element |
Content, not more than |
Total content of element group, not more than |
| 1 |
Se |
0.00020 |
0.00030 |
0.00030 |
| Te |
0.00020 |
| Bi |
0.0020 |
|
| 2 |
Cr |
– |
0.0015 |
| Mn |
– |
| Sb |
0.0004 |
| Cd |
– |
| As |
0.0005 |
| P |
– |
| 3 |
Pb |
0.0005 |
0.0005 |
| 4 |
S |
0.0015 |
0.0015 |
| 5 |
Sn |
– |
0.0020 |
| Ni |
– |
| Fe |
0.0010 |
| Si |
– |
| Zn |
– |
| Co |
– |
| 6 |
Ag |
0.0025 |
0.0025 |
| Where the total content of the impurity elements listed |
0.0065 |
Quality: ASTM B115-10 Standard Specification for Electrolytic Copper Cathode (Cathode Grade 1)
| Element |
Composition, % maximum |
Group Total, % maximum |
| Se |
0.0002 |
0.0003 |
| Te |
0.0002 |
| Bi |
0.00010 |
| Sb |
0.0004 |
|
| Pb |
0.0005 |
|
| As |
0.0005 |
|
| Fe |
0.0010 |
|
| Ni |
0.0010 |
|
| Sn |
0.0005 |
|
| S |
0.0015 |
|
| Ag |
0.0025 |
|
| Maximum allowable total |
0.0065 |
|
