Atso Tek
Electrolytic Copper Cathode · Cu ≥ 99.994% · ASTM B115

Electrolytic Copper Cathodefor wire rod, conductors, alloys and electronics.

Electrolytic copper cathode manufactured in accordance with ASTM B115, with a minimum copper content of 99.994% and ultra-low impurity levels. Supplied as 100 × 100 cm sheets, 8 mm thick, in bundles of 17 sheets.

  • Minimum 99.994% Cu, impurity limits published element by element
  • Manufactured in accordance with ASTM B115
  • 17 sheets per bundle, approx. 2,414 kg
Bundles of electrolytic copper cathode sheets
/ Datasheet
COPPER≥ 99.994% Cu
STANDARDASTM B115
SHEET100 × 100 cm
BUNDLE≈ 2,414 kg
What is Atso Tek Copper Cathode

High-purity cathode, specified element by element.

Electrolytic copper cathode is the refined sheet that feeds wire rod mills, conductor producers and alloy foundries. Atso Tek supplies it to ASTM B115 requirements with a minimum copper content of 99.994% and a published limit for each impurity, so your QC team can check the sheet against the specification before the first melt.

/01
Copper content
≥ 99.994%
minimum
/02
Standard
ASTM B115
electrolytic copper cathode
/03
Sheet size
100 × 100 cm
8 mm thick
/04
Bundle weight
≈ 2,414 kg
17 sheets × 142 kg
Chemical composition

Copper content and every impurity limit, in one table.

Copper is a minimum; every other element is a maximum, in parts per million. Manufactured in accordance with ASTM B115.

/ Datasheet · Copper Cathode
Copper
%
Symbol
Cu
Limit
≥ 99.994
Arsenic
ppm
Symbol
As
Limit
< 1
Antimony
ppm
Symbol
Sb
Limit
< 1
Iron
ppm
Symbol
Fe
Limit
< 2
Manganese
ppm
Symbol
Mn
Limit
< 0.5
Sulfur
ppm
Symbol
S
Limit
< 15
Oxygen
ppm
Symbol
O
Limit
< 50
Lead
ppm
Symbol
Pb
Limit
< 5
Zinc
ppm
Symbol
Zn
Limit
< 3
Cobalt
ppm
Symbol
Co
Limit
< 2
Nickel
ppm
Symbol
Ni
Limit
< 1
Cadmium
ppm
Symbol
Cd
Limit
< 0.2
Tellurium
ppm
Symbol
Te
Limit
< 1.2
Selenium
ppm
Symbol
Se
Limit
< 0.4
Tin
ppm
Symbol
Sn
Limit
< 1
Bismuth
ppm
Symbol
Bi
Limit
< 1
Silicon
ppm
Symbol
Si
Limit
< 1
Phosphorus
ppm
Symbol
P
Limit
< 1
Chromium
ppm
Symbol
Cr
Limit
< 1
Silver
ppm
Symbol
Ag
Limit
< 10

Note: Source: Atso Tek technical data sheet, Electrolytic Copper Cathode (Cu 99.994% min).

Download technical data sheet (PDF)
Where copper cathode is used

Wire rod, conductors, alloys and electronics.

Suitable for wire rod production, electrical conductors, copper alloys, electronics and other high-purity industrial applications.

/01Copper Cathode
Continuous casting

Wire rod production

Melted and continuously cast into copper wire rod, the feedstock for cable and winding wire drawing.

/02Copper Cathode
Power / Cable

Electrical conductors

Busbar, cable and winding wire, where conductivity depends on keeping impurities low.

/03Copper Cathode
Foundry / Melt shop

Copper alloys

A clean base metal for brass, bronze and other copper alloys, so the alloy chemistry stays predictable.

/04Copper Cathode
High purity

Electronics

Feedstock for the high-purity copper products used across electronics manufacturing.

Compliance and documentation

Documents your QC team and customs broker need.

Every copper cathode shipment ships with the paperwork you need to clear customs and pass incoming inspection.

Standards we ship against
ASTM B115/01

Standard specification for electrolytic copper cathode

Chemical composition/02

Copper content and 19 impurity elements against published limits

Sheet and bundleHow it ships.
/01
Sheet size
100 × 100 cm
8 mm thick
/02
Sheet weight
142 kg
per cathode sheet
/03
Bundle
17 sheets
per bundle
/04
Bundle weight
≈ 2,414 kg
approximate
Buyer questions

What copper cathode buyers ask before the first shipment.

Minimum 99.994% copper, manufactured in accordance with ASTM B115. Each impurity has its own published maximum, for example sulfur below 15 ppm, oxygen below 50 ppm, silver below 10 ppm and lead below 5 ppm. The full 20-element table is on this page and in the technical data sheet.

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