Copper Ingots
Copper ingots in Cu-ETP, Cu-OF and Cu-DHP with 99.90% to 99.95% copper, for electrical use, alloy making and casting. Made in Jamnagar.
High-Purity Copper Ingots
Cu-ETP, Cu-OF and Cu-DHP copper ingots with 99.90% to 99.95% copper, for electrical use, alloy making and heavy casting.
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Indian standard: IS 191
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European standard: EN 1976 (Cu-ETP, Cu-OF, Cu-DHP)
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American standards: ASTM B5 (C11000), ASTM B170 (C10200), UNS C12200
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Form: Notch-bar ingots and continuous block slabs, 20 to 50 kg
Manufacturing Process
Four controlled steps to a clean copper ingot.
Cathode and Scrap Sorting
LME Grade A copper cathodes and clean copper wire scrap are sorted to remove iron, lead and tin.
Induction Furnace Refining
Melted under a protective cover in medium-frequency furnaces to limit oxygen pick-up.
Deoxidation and Spectro Test
DHP grade is deoxidised with phosphorus. Purity is checked on a spectrometer.
Continuous Mould Casting
Filtered copper is cast in water-cooled moulds into smooth ingots with identification stamps.
Technical Specifications & Data Sheets
Comprehensive chemical composition limits, physical constants, and mechanical properties of commercial and electrical grade Copper Ingots.
1. Chemical Composition Analysis
| Grade | UNS | Reference | Copper (% min) | Phosphorus (%) | Oxygen (%) |
|---|---|---|---|---|---|
| Cu-ETP | C11000 | IS 191, ASTM B5, EN 1976 | 99.90 | None | 0.02 to 0.04 |
| Cu-DHP | C12200 | IS 191, EN 1976 | 99.90 | 0.015 to 0.040 | None |
| Cu-OF | C10200 | ASTM B170, EN 1976 | 99.95 | None | 0.001 max |
2. Physical Properties
| Property | Cu-ETP | Cu-DHP | Cu-OF |
|---|---|---|---|
| Electrical conductivity (% IACS) | 100 min | About 85 | 101 min |
| Density (g/cm³) | 8.91 | 8.94 | 8.94 |
| Melting point | 1083 °C | 1083 °C | 1083 °C |
3. Packaging and Ingot Dimensions
| Ingot type | Weight | Size (L × W × H) | Bundle weight | Packaging |
|---|---|---|---|---|
| Notched bar ingot | 20 to 25 kg | 600 × 100 × 75 mm | 1000 kg (1 tonne) | Steel strapped, wooden pallet |
| Continuous block slab | 30 to 50 kg | 700 × 120 × 90 mm | 1000 to 1250 kg | Export shrink wrap and steel bands |
Where it is used
Key downstream manufacturing sectors reliant on pure copper ingots.
Electrical and power distribution
Remelted and cast into busbars, transformer parts and switchgear parts, and drawn into wire rod.
Alloy foundries
Raw material for brass, phosphor bronze, aluminium bronze and gunmetal.
HVAC and heat exchangers
DHP copper is used for refrigeration tubing, cooling plates and heat exchanger pipes.
Plumbing and valve fittings
Raw material for water valves, sanitary hardware and pipe fittings.
Automotive and electrical
Motor parts, battery connectors and radiator cores.
Chemical and process equipment
Reaction vessels, kettles and electrodes, where heat transfer and corrosion resistance matter.