Why Koprex is a Leading Copper Strip Manufacturer in India
Koprex has established itself as a leading copper strip manufacturer in India by delivering premium-quality copper strips that meet the evolving needs of modern industries. Backed by years of manufacturing expertise, advanced production technology, and strict quality control, we supply copper strips that offer outstanding electrical conductivity, dimensional accuracy, and long-term durability.
From electrical and electronics to transformers, renewable energy, automotive, and infrastructure projects, businesses across India trust Koprex for reliable copper strip solutions. Our commitment to international quality standards, customized manufacturing capabilities, and timely delivery has made us the preferred partner for OEMs, contractors, engineers, and industrial buyers.
Whether you require standard copper strips or custom-made solutions, Koprex combines technical expertise, precision manufacturing, and customer-focused service to deliver products that consistently exceed industry expectations.
What is a Copper Strip?
A copper strip is a flat, elongated piece of copper available in coil form or cut lengths, produced by rolling copper billets or ingots into thin, uniform sections. Owing to copper's exceptional electrical conductivity, thermal performance, and corrosion resistance, copper strips are widely used across electrical, industrial, and construction sectors. They are manufactured in varying thicknesses, widths, and tempers to suit diverse application requirements — from delicate electronic components to heavy-duty earthing installations.
At Koprex, our copper strips are manufactured using high-purity copper cathodes and processed under strict quality control, ensuring every strip we deliver performs reliably under demanding operating conditions.
Advanced Copper Strip Manufacturing Process
At Koprex, every copper strip is manufactured using advanced production techniques to ensure superior quality, dimensional accuracy, and consistent performance. Our manufacturing process begins with high-purity copper cathodes that are carefully processed using modern rolling technology.
The production process includes precision hot and cold rolling, controlled annealing, accurate slitting, surface finishing, and thorough inspection at every stage. This ensures every copper strip delivers excellent electrical conductivity, corrosion resistance, and mechanical strength for demanding industrial applications.
By combining advanced manufacturing technology with experienced quality control professionals, Koprex delivers copper strips that consistently meet ASTM, BS, DIN, and IS standards.
Types of Copper Strips We Manufacture
Koprex offers a comprehensive range of copper strips to address varied industrial needs:
- Bare Copper Strips – Ideal for earthing, grounding, and general electrical applications where uncoated conductivity is required.
- Flexible Copper Strips – Designed for applications requiring bendable, low-resistance connections such as busbar links and flexible connectors.
- Tinned Copper Strips – Coated with tin for enhanced corrosion resistance, commonly used in harsh or outdoor environments.
- Copper Earthing Strips – Engineered specifically for lightning protection and electrical grounding systems.
- Thin Copper Strips / Foils – Used in electronics, EMI shielding, and precision fabrication.
- C11000 Copper Strips (ETP Copper) – Electrolytic tough pitch copper strips valued for excellent conductivity.
- C10100 / C10200 Oxygen-Free Copper Strips – High-purity, oxygen-free strips suited for critical electrical and vacuum applications.
- C12200 Copper Strips (DHP Copper) – Deoxidized high phosphorus copper strips known for good weldability and corrosion resistance.
Copper Strip Specifications
| Parameter | Details |
|---|---|
| Standard Compliance | ASTM B152, ASTM B370, BS EN 1652, DIN 17670, IS 191 |
| Material | Pure Copper / Oxygen-Free Copper |
| Width Range | 5 mm – 1250 mm |
| Thickness Range | 0.03 mm – 25 mm |
| Length | Coil form or cut lengths up to 6000 mm |
| Temper | Soft (Annealed), Half-Hard, Full-Hard, Extra Hard |
These specifications allow Koprex to serve customers with highly specific project requirements, from micro-thin foils to heavy-gauge earthing strips.
Copper Strip Grades Available
Koprex stocks and supplies copper strips across multiple internationally recognized grades, including:
- C10100 – Oxygen-Free Electronic Copper
- C10200 – Oxygen-Free Copper
- C10300
- C10800
- C11000 – Electrolytic Tough Pitch Copper
- C11400
- C11600
- C12200 – Phosphorus Deoxidized Copper (DHP)
- C14200 / C14420
- C22000 (CuZn10) – Copper Alloy Strip
Each grade offers a distinct balance of conductivity, formability, and corrosion resistance, allowing customers to select the right material for their specific application.
Chemical Composition of Copper Strips
| Element | Percentage (%) | Function |
|---|---|---|
| Copper (Cu) | 99.90 – 99.99 | Provides high conductivity and ductility |
| Phosphorus (P) | 0.01 – 0.04 | Improves corrosion resistance |
| Iron (Fe) | 0.02 max | Trace element influencing strength |
| Lead (Pb) | 0.05 max | Enhances machinability |
| Zinc (Zn) | 0.05 max | Adds strength in select alloys |
Mechanical Properties of Copper Strips
| Property | Value |
|---|---|
| Tensile Strength | 210 – 300 MPa |
| Yield Strength | 100 – 200 MPa |
| Elongation | 30 – 50% |
| Hardness (Vickers) | 40 – 100 HV |
| Density | 8.96 g/cm³ |
| Electrical Conductivity | Up to 97–101% IACS |
These properties make Koprex copper strips ideal for applications demanding both mechanical resilience and superior electrical performance.
Applications of Copper Strips
Copper strips from Koprex are trusted across a wide spectrum of industries:
- Electrical Earthing & Grounding – Reliable fault-current dissipation and safety compliance for industrial and residential installations.
- Transformers & Switchgear – Used in windings, connectors, and control panels for stable electrical performance.
- Renewable Energy (Solar Power) – Employed in solar panel interconnections and grounding systems.
- Automotive Industry – Used in wiring harnesses, connectors, and electrical assemblies.
- Oil & Gas and Petrochemical Plants – Corrosion-resistant strips for hazardous environment installations.
- Ship Building & Marine Applications – Durable strips resistant to saline and humid conditions.
- Aerospace Components – Precision strips for lightweight, high-conductivity assemblies.
- Fertilizer & Chemical Plants – Reliable grounding and bonding solutions in corrosive atmospheres.
- Busbars & Flexible Connectors – Low-resistance current-carrying links in power distribution systems.
Industries That Trust Koprex Copper Strips
- Electrical & Power Distribution
- Transformer Manufacturing
- Renewable Energy & Solar Projects
- Automotive Industry
- Electronics Manufacturing
- Infrastructure Projects
- Oil & Gas Plants
- Chemical & Fertilizer Industries
- Marine & Shipbuilding
- OEM Manufacturing
Koprex supplies premium-quality copper strips to a wide range of industries across India. Our products are trusted for their consistent quality, high conductivity, and reliable performance in demanding environments.
Our copper strips are widely used in:
With extensive industry experience, Koprex understands the unique requirements of every sector and delivers customized copper strip solutions accordingly.
Why Koprex is a Leading Copper Strip Manufacturer in India
Koprex has earned the trust of customers across India by consistently delivering high-quality copper strips that meet international quality standards. Our focus on innovation, precision manufacturing, and customer satisfaction makes us a preferred partner for industries requiring dependable copper strip solutions.
Premium Quality Raw Materials
We manufacture copper strips using high-purity copper that provides exceptional electrical conductivity, mechanical strength, and corrosion resistance.
Advanced Manufacturing Technology
Our modern manufacturing facility utilizes precision rolling, annealing, slitting, and inspection processes to ensure uniform dimensions and superior product quality.
International Quality Standards
All products are manufactured in compliance with ASTM, BS, DIN, and IS standards, ensuring reliable performance across diverse industrial applications.
Customized Manufacturing Solutions
We produce copper strips in customized widths, thicknesses, lengths, tempers, and grades according to customer specifications.
Strict Quality Inspection
Every production batch undergoes conductivity testing, tensile strength testing, hardness testing, dimensional inspection, and visual quality checks before dispatch.
Reliable Nationwide Supply
Our efficient logistics network enables us to deliver copper strips across India with secure packaging and timely delivery schedules.
Experienced Technical Support
Our experienced team helps customers select the right copper strip grade, temper, and dimensions to achieve optimum performance for every application.
Copper Strip Testing & Quality Assurance
Quality is at the core of every copper strip Koprex manufactures. Our testing protocols include:
- Tensile Strength Testing – Confirms mechanical properties fall within specified engineering limits.
- Hardness Testing – Validates suitability for the intended temper and application.
- Conductivity Testing – Ensures strips meet or exceed IACS conductivity benchmarks.
- Dimensional Inspection – Verifies thickness and width tolerances for precision-critical uses.
This rigorous approach ensures that every Koprex copper strip performs reliably, whether deployed in a rooftop earthing system or a high-precision transformer assembly.
Premium Quality Standards
Quality is the foundation of every copper strip manufactured at Koprex. Our production processes follow internationally recognized standards to ensure every product delivers consistent performance and reliability.
Our quality commitment includes:
- ASTM Standard Compliance
- BS Standard Compliance
- DIN Standard Compliance
- IS Standard Compliance
- Precision Dimensional Inspection
- Electrical Conductivity Testing
- Mechanical Property Testing
- Surface Finish Inspection
- Batch Traceability
- Final Quality Approval Before Dispatch
This rigorous quality management system ensures customers receive copper strips that consistently meet their technical and performance requirements.
Copper Strip Sizes and Availability
Koprex maintains extensive stock to support both bulk industrial orders and smaller custom requirements:
- Strip & Foil Thickness: 0.030 mm to 3.00 mm
- Sheet Thickness: 0.30 mm to 3.00 mm
- Width Range: 10 mm to 450 mm (strips), up to 1250 mm (sheets)
- Coil Weight: Up to 2–3 tons depending on dimensions
- Cut Lengths: Up to 6000 mm on request
This flexibility allows Koprex to fulfill orders for everything from delicate electronic foils to heavy-duty industrial earthing strips.
Choose Koprex for Premium Copper Strip Solutions
Koprex continues to be one of the leading copper strip manufacturers in India by combining advanced manufacturing technology, premium-quality raw materials, strict quality standards, and customer-focused service. Our ability to manufacture customized copper strips in various grades, dimensions, and tempers enables us to serve industries with precision-engineered solutions that deliver long-term performance.
Whether your requirement is for electrical grounding, transformer manufacturing, renewable energy projects, automotive applications, or industrial power distribution, Koprex provides dependable copper strip solutions backed by technical expertise and reliable delivery.
Contact Koprex today to discuss your copper strip requirements, request a quotation, or learn more about our complete range of copper products. Our experts are ready to help you find the right solution for your project.
Frequently Asked Questions
1. What are copper strips used for?
- Copper strips are widely used in electrical earthing, grounding systems, transformer windings, switchgear, busbars, solar power installations, automotive electrical components, electronics, and industrial power distribution. Their excellent electrical conductivity and corrosion resistance make them suitable for demanding applications.
2. What grades of copper strips does Koprex supply?
- Koprex supplies copper strips in multiple international grades, including C10100, C10200, C10300, C10800, C11000 (ETP Copper), C11400, C11600, C12200 (DHP Copper), C14200, C14420, and C22000 (CuZn10). We also provide customized grades based on project requirements.
3. What sizes of copper strips are available?
- Koprex manufactures copper strips in thicknesses ranging from 0.03 mm to 25 mm, widths from 5 mm to 1250 mm, and lengths up to 6000 mm. Copper strips are available in both coil form and cut lengths, with custom dimensions available on request.
4. Why should I choose Koprex as a copper strip manufacturer in India?
- Koprex offers premium-quality copper strips manufactured from high-purity copper, strict quality control, customized sizes, international standard compliance (ASTM, BS, DIN & IS), competitive pricing, fast delivery, and reliable technical support for industrial applications across India and overseas.
5. What industries use Koprex copper strips?
- Koprex copper strips are widely used in electrical and power distribution, transformer manufacturing, renewable energy (solar), automotive, electronics, construction, oil & gas, petrochemical plants, shipbuilding, aerospace, and chemical industries.
6. Are Koprex copper strips manufactured according to international standards?
- Yes. Koprex manufactures copper strips in compliance with international standards such as ASTM B152, ASTM B370, BS EN 1652, DIN 17670, and IS 191. Every product undergoes strict quality inspections to ensure consistent performance and dimensional accuracy.
7. Can Koprex manufacture custom-size copper strips?
- Yes. Koprex offers customized copper strips in various thicknesses, widths, lengths, and tempers to meet specific customer requirements. We support both small custom orders and bulk industrial production with quick turnaround times.
8. What tests are performed on Koprex copper strips?
- Every copper strip undergoes comprehensive quality testing, including electrical conductivity testing, tensile strength testing, hardness testing, dimensional inspection, and visual quality checks. This ensures the products meet required engineering and industry standards.
9. What is the difference between bare copper strips and tinned copper strips?
- Bare copper strips provide maximum electrical conductivity and are commonly used for earthing and grounding systems. Tinned copper strips are coated with a thin layer of tin, offering enhanced corrosion resistance, making them ideal for outdoor, marine, and high-humidity environments.
10. Does Koprex supply copper strips across India?
- Yes. Koprex supplies copper strips to customers across India, including Delhi, Mumbai, Chennai, Bengaluru, Hyderabad, Pune, Ahmedabad, Kolkata, and other major industrial locations. We also export copper strips to international markets with secure packaging and timely delivery.