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Copper Rods – ETP, DHP & High-Conductivity Copper Rods Manufacturer
Product Overview
Copper Rods manufactured by R V Metal Corporation are produced using high-purity Electrolytic Tough Pitch (ETP – C11000) and Deoxidized High Phosphorus (DHP – C12200) copper, ensuring superior electrical conductivity, excellent machinability, and outstanding corrosion resistance. These rods are widely used across electrical, switchgear, earthing, grounding, manufacturing, automotive, and industrial engineering sectors. Available in round, square, hexagonal, and rectangular profiles with precise dimensional tolerances, our copper rods deliver consistent performance in applications requiring high current flow, structural rigidity, or precision machining. Strict quality control, certified testing, and compliance with IS, ASTM, BS, and IEC standards make our rods suitable for OEMs, fabricators, panel builders, and engineering industries worldwide.
Technical Specifications
| Parameter | Specification | Remarks |
|---|---|---|
| Material Grades | C11000 (ETP Copper), C12200 (DHP Copper) | Other custom grades available on request |
| Manufacturing Process | Extruded / Drawn / Rolled | Depends on size and required finish |
| Shapes Available | Round, Square, Hex, Rectangle, Custom Profiles | Profiles made as per OEM drawings |
| Diameter/Size Range | 4 mm to 200 mm | Larger sizes supplied on special order |
| Length | 1000 mm / 2000 mm / 3000 mm / Custom Lengths | Tolerance ±2 mm or as per standard |
| Surface Finish | Bright Drawn, Mill Finish, Polished | Anti-oxidation coating available |
| Temper | Annealed (O), Half Hard (H02), Hard (H04 / H08) | Tempers vary by application (electrical/mechanical) |
| Electrical Conductivity | ≥ 97% IACS (ETP), ≥ 85% IACS (DHP) | Verified as per ASTM B193 |
| Dimensional Tolerances | As per ASTM B187 / IS 4171 / EN Standards | Precision tolerance rods for electrical OEMs |
| Testing | Chemical, Mechanical, Eddy Current, Hardness | MTC supplied with every batch |
Chemical Composition
| Element | C11000 (ETP Copper) | C12200 (DHP Copper) | Remarks |
|---|---|---|---|
| Copper (Cu) | ≥ 99.90% | 99.90% min (Cu + Ag) | High purity for electrical and mechanical applications |
| Oxygen (O) | 0.02 – 0.04% | Deoxidized — Residual Cu₂O only | ETP contains oxygen; DHP is fully deoxidized |
| Phosphorus (P) | — | 0.015 – 0.040% | Added to improve weldability & corrosion resistance |
| Silver (Ag) | 0.002% max | 0.002% max | Silver counted in total Cu |
| Other Impurities | 0.03% max total | 0.03% max total | Strict control ensures conductivity & performance |
| Conductivity | ≥ 101% IACS | 85–90% IACS | ETP used for electrical; DHP used for industrial |
UNS Codes & Grades
| UNS Code | Grade Name | Common Designation | Typical Applications |
|---|---|---|---|
| C11000 | ETP Copper (Electrolytic Tough Pitch) | ETP Rod / EC Grade Copper | Electrical conductors, bus bars, switchgear, earthing rods |
| C10200 | OFHC Copper (Oxygen-Free High Conductivity) | Oxygen-Free Rod | High-end electronics, vacuum components, semiconductor parts |
| C12200 | DHP Copper (Deoxidized High Phosphorus) | Commercial Copper Rod / Plumbing Rod | Brazing rods, plumbing parts, gas lines, fittings, HVAC components |
| C12000 | DLP Copper (Deoxidized Low Phosphorus) | DLP Rod | General engineering, heat exchangers, forming & deep draw parts |
| C10300 | OF (Oxygen-Free) | OF Rod | Transformer windings, magnet coils, precision electrical components |
Mechanical, Physical & Fabrication Properties
| Property | C11000 (ETP Copper) | C10200 (OFHC Copper) | C12200 (DHP Copper) | C12000 (DLP Copper) |
|---|---|---|---|---|
| Electrical Conductivity (% IACS) | ≥ 101% | ≥ 101% (Highest purity) | 85–90% | 85–90% |
| Thermal Conductivity (W/m·K) | 390 | 390–400 | 320–350 | 320–350 |
| Tensile Strength (MPa) | 200–240 MPa | 200–240 MPa | 200–260 MPa | 200–260 MPa |
| Yield Strength (MPa) | 70–100 MPa | 70–100 MPa | 60–110 MPa | 60–110 MPa |
| Elongation (%) | 35–45% | 35–45% | 30–45% | 30–45% |
| Hardness (HV) | 45–85 HV | 45–85 HV | 50–90 HV | 50–90 HV |
| Melting Point (°C) | 1083°C | 1083°C | 1083°C | 1083°C |
| Fabrication — Cold Working | Excellent | Excellent | Good | Good |
| Fabrication — Hot Working | Good | Good | Excellent | Excellent |
| Brazing | Excellent | Excellent | Excellent (preferred for brazing) | Good |
| Weldability | Fair | Good | Excellent | Good |
Common Names & International Identifiers
| Copper Grade | Common / Trade Names | International Identifiers | Typical Applications |
|---|---|---|---|
| C11000 (ETP Copper) |
Electrolytic Tough Pitch Copper ETP Rod High-Conductivity Copper Rod |
UNS: C11000 ISO: Cu-ETP DIN: CW004A BS: C101 / C103 JIS: C1100 |
Electrical conductors, earthing rods, busbars, switchgear, extrusions |
| C10200 (OFHC Copper) |
Oxygen-Free High Conductivity Copper OFHC Rod High Purity Copper Rod |
UNS: C10200 ISO: Cu-OF DIN: CW008A BS: C103 JIS: C1020 |
High-vacuum systems, cryogenic equipment, electronics, semiconductor |
| C12200 (DHP Copper) |
Deoxidized High Phosphorus Copper Copper DHP Rod Plumbing / HVAC Grade Rod |
UNS: C12200 ISO: Cu-DHP DIN: CW024A BS: C106 JIS: C1220 |
HVAC, refrigeration, plumbing fittings, brazed components, heat exchangers |
| C12000 (DLP Copper) |
Deoxidized Low Phosphorus Copper Low-Residual Phosphorus Rod Semi-Deoxidized Copper Rod |
UNS: C12000 ISO: Cu-DLP DIN: CW023A BS: C105 JIS: C1201 |
Welding rods, cookware components, formed parts, general engineering |
Standards & International Equivalents
| Copper Grade | ASTM Standards | EN / DIN Standards | BS (British Standards) | JIS / ISO Standards |
|---|---|---|---|---|
| C11000 (ETP Copper) |
ASTM B152 – Copper Sheet, Strip & Plate ASTM B187 – Copper Rod, Bar & Shapes ASTM B170 – Oxygen-Free & ETP Copper Rod |
EN 13601 – Copper Rod for Electrical Purposes DIN EN 13601 – CW004A (Cu-ETP) |
BS C101 / C103 – High Conductivity Copper |
JIS H3100 – C1100 ISO 1634 – Cu-ETP |
| C10200 (OFHC Copper) |
ASTM B152 – OFHC Copper Plate/Sheet ASTM B187 – OFHC Rod & Bar ASTM B170 – OFHC Rod for Electrical Conductors |
EN 13601 – CW008A (Cu-OF) DIN 1787 – Oxygen-Free Copper Rod |
BS C103 – Oxygen-Free Copper |
JIS H3100 – C1020 ISO 1635 – Cu-OF |
| C12200 (DHP Copper) |
ASTM B68 – Seamless Copper Tube (DHP) ASTM B75 – General Purpose Copper Tube ASTM B743 – Copper Tubes & Rods (DHP) |
EN 1057 – Copper for Plumbing (Cu-DHP) EN 12449 – Seamless Copper Tubes |
BS C106 – Deoxidized High Phosphorus Copper |
JIS H3300 – C1220 ISO 1636 – Cu-DHP |
| C12000 (DLP Copper) |
ASTM B152 – Deoxidized Low Phosphorus Copper ASTM B187 – Rod & Bar (DLP) |
EN 1652 – CW023A (Cu-DLP) DIN 17666 – Deoxidized Copper |
BS C105 – DLP Copper |
JIS H3100 – C1201 ISO 1636 – Cu-DLP |
Applications
| Industry | Application | Description / Usage Area |
|---|---|---|
| Electrical Industry | Busbars, Conductors, Earthing Rods | Used for high conductivity applications such as switchgear components, power distribution, grounding, and heavy electrical duty parts. |
| Electronics & Telecom | Connectors, Terminals, Contact Pins | Precision-drawn rods provide excellent conductivity and stability required for communication systems and PCB components. |
| HVAC & Refrigeration | Expansion Rods, Valve Components | Used in control valves, compressors, and expansion devices where high thermal transfer and dimensional accuracy are essential. |
| Automotive Industry | Fuse Terminals, Radiator Parts, EV Bus Components | Applied in fuel injector systems, EV charging systems, battery connectors, and heat-dissipation components. |
| Machining & Industrial | Fasteners, Screws, Industrial Parts | High-machinability copper grades (like C11000/C13000) used for bolts, nuts, gears, bearings, and custom CNC components. |
| Plumbing & Gas | Fittings, Flanges, Couplings | Copper rods are forged into high-strength plumbing fittings due to corrosion resistance and durability. |
| Construction | Architectural Hardware | Used in decorative elements, grounding grids, lightning protection, and handcrafted copper architectural components. |
| Renewable Energy | Solar Terminals, Battery Busbars | High-conductivity rods enable efficient power transfer in solar PV systems and energy storage units. |
| Marine Industry | Corrosion-Resistant Components | Used in marine hardware requiring superior resistance to seawater and atmospheric corrosion. |
Standard Copper Rods Dimensional Chart
| Rod Diameter (mm) | Cross-sectional Area (mm²) | Theoretical Weight (kg/m) | Available Grades | Temper |
|---|---|---|---|---|
| 6 mm | 28.27 | 0.252 | C11000 (ETP), C12200 (DHP), C10200 (OFHC) | Soft / Half Hard / Hard |
| 8 mm | 50.27 | 0.449 | C11000, C12200, C12000 | Soft / Hard |
| 10 mm | 78.54 | 0.701 | C11000, C12200, C10200 | Half Hard / Hard |
| 12 mm | 113.10 | 1.009 | C11000, C12000 (DLP), C12200 | Soft / Half Hard |
| 16 mm | 201.06 | 1.795 | C11000, C10200, C12200 | Hard |
| 19 mm | 283.53 | 2.531 | C11000, C12000, C12200 | Soft / Hard |
| 20 mm | 314.16 | 2.802 | C11000, C10200, C12200 | Half Hard / Hard |
| 25 mm | 490.87 | 4.375 | C11000, C10200 (OFHC), C12200 | Soft / Hard |
| 30 mm | 706.86 | 6.300 | C11000, C10200, C12000 | Half Hard |
| 32 mm | 804.25 | 7.170 | C11000, C12200 | Hard |
| 40 mm | 1256.64 | 11.197 | C11000, C10200 | Hard / Annealed |
| 50 mm | 1963.50 | 17.480 | C11000, C12000, C12200 | Hard |
| 63 mm | 3117.25 | 27.757 | C11000, C10200 | Hard |
| 75 mm | 4417.86 | 39.326 | C11000, C12200 | Hard |
| 80 mm | 5026.55 | 44.776 | C11000, C10200 | Hard / Annealed |
| 100 mm | 7853.98 | 69.975 | C11000, C10200 (OFHC) | Hard |
Round Copper Rod – Dimensional & Weight Chart
| Diameter (mm) | Area (mm²) | Weight (kg/m) | Available Grades | Temper |
|---|---|---|---|---|
| 6 | 28.27 | 0.252 | C11000, C12200, C10200 | Soft / HH / Hard |
| 8 | 50.27 | 0.449 | C11000, C12200, C12000 | Soft / Hard |
| 10 | 78.54 | 0.701 | C11000, C12200, C10200 | HH / Hard |
| 12 | 113.10 | 1.009 | C11000, C12000, C12200 | Soft / HH |
| 16 | 201.06 | 1.795 | C11000, C10200, C12200 | Hard |
| 19 | 283.53 | 2.531 | C11000, C12000, C12200 | Soft / Hard |
| 20 | 314.16 | 2.802 | C11000, C10200, C12200 | HH / Hard |
| 25 | 490.87 | 4.375 | C11000, C10200, C12200 | Soft / Hard |
| 30 | 706.86 | 6.300 | C11000, C10200, C12000 | HH |
| 32 | 804.25 | 7.170 | C11000, C12200 | Hard |
| 40 | 1256.64 | 11.197 | C11000, C10200 | Hard / Annealed |
| 50 | 1963.50 | 17.480 | C11000, C12000, C12200 | Hard |
| 63 | 3117.25 | 27.757 | C11000, C10200 | Hard |
| 75 | 4417.86 | 39.326 | C11000, C12200 | Hard |
| 80 | 5026.55 | 44.776 | C11000, C10200 | Hard |
| 100 | 7853.98 | 69.975 | C11000, C10200 | Hard |
Hex Copper Rod – Dimensional & Weight Chart
| Across Flats (mm) | Area (mm²) | Weight (kg/m) | Available Grades | Applications |
|---|---|---|---|---|
| 6 | 93.53 | 0.838 | C11000, C12200 | Electrical lugs, terminals |
| 8 | 166.27 | 1.490 | C11000, C12000 | Fasteners, earthing |
| 10 | 259.80 | 2.327 | C11000, C10200 | Switchgear parts |
| 12 | 374.11 | 3.353 | C11000 | Heavy connectors |
| 16 | 665.09 | 5.958 | C10200, C11000 | Machined components |
| 19 | 938.73 | 8.409 | C11000 | Industrial bushings |
| 22 | 1254.66 | 11.242 | C11000, C12000 | Transformers |
| 25 | 1623.75 | 14.543 | C11000 | Electrical bars |
Square Copper Rod – Dimensional & Weight Chart
| Side (mm) | Area (mm²) | Weight (kg/m) | Available Grades | Temper |
|---|---|---|---|---|
| 6 | 36 | 0.322 | C11000, C12200 | Soft / HH |
| 8 | 64 | 0.573 | C11000, C12000 | Half Hard |
| 10 | 100 | 0.896 | C11000, C10200 | Hard |
| 12 | 144 | 1.292 | C11000 | Hard |
| 16 | 256 | 2.293 | C11000, C12200 | Hard |
| 20 | 400 | 3.584 | C11000, C10200 | Hard |
| 25 | 625 | 5.600 | C11000 | Hard |
| 30 | 900 | 8.064 | C11000, C12000 | Hard |
Round Rod vs Square Rod vs Hex Rod – Engineering Comparison
| Parameter | Round Rod | Square Rod | Hex Rod |
|---|---|---|---|
| Conductivity | Highest (uniform cross-section) | Moderate | High |
| Machinability | Good | Very Good | Excellent |
| Use Case | Electrical, earthing, switches | Machined blocks, terminals | Fasteners, connectors |
| Cost | Lowest | Medium | Slightly higher |
| Precision | High | High | Very High |
Copper Rod Grade Comparison
| Grade | UNS | Conductivity | Hydrogen Embrittlement Risk | Best For |
|---|---|---|---|---|
| DHP | C12200 | 85–90% IACS | No | Plumbing, HVAC coils, fittings |
| DLP | C12000 | 85–90% IACS | Low | General industrial use |
| ETP | C11000 | 100% IACS | Yes (dangerous for HVAC) | Busbars, electrical applications |
| OFHC | C10200 | 101% IACS | No | Vacuum systems, high-purity electronics |
- All weights are theoretical and may vary ±3% based on tolerances.
- ETP (C11000) is NOT recommended for refrigeration—risk of hydrogen embrittlement.
- OFHC (C10200) must be used when oxygen-free copper is required.
- DHP (C12200) is the standard grade for bending, flaring and HVAC manufacturing.
- Dimensional tolerances as per ASTM B187 / IS 191 / EN standards.
