Copper Forging, Copper Hot and Cold Forged Parts – Manufacturer & Exporter | Conex Metals

Conex Metals is a leading manufacturer and exporter of copper forged parts, supplying precision copper hot forged components and cold forged copper parts to electrical OEMs, EPC contractors, power utilities, and industrial distributors worldwide. Our copper forgings are produced from high-conductivity electrolytic tough pitch (ETP) copper and oxygen-free copper (OFC) to meet the most demanding mechanical and electrical performance requirements. With ISO-certified manufacturing, tight dimensional tolerances, and comprehensive material traceability, Conex Metals delivers copper forged components for switchgear, transformers, busbars, earthing systems, hydraulic fittings, and heavy electrical infrastructure globally.

Product Overview: Copper Forging & Forged Copper Parts

Copper forging is a manufacturing process that shapes heated or room-temperature copper billets under controlled compressive forces using dies, resulting in components with a refined grain structure, superior mechanical strength, and excellent electrical conductivity. Unlike cast or machined parts, forged copper components exhibit better fatigue resistance, reduced porosity, and consistent density—critical for high-current electrical applications.

Hot Forged Copper Parts

Hot forged copper parts are produced by heating copper billets to 600–900°C and pressing them into precision dies. This process is ideal for manufacturing copper terminal lugs, copper contact tips, copper busbar connectors, copper electrical contacts, copper stud terminals, copper cable end ferrules, copper pivot pins, copper flanges, and copper socket contacts. The elevated temperature increases malleability and allows material flow into complex geometries while maintaining electrical conductivity above 99% IACS. Hot forging is the preferred method for large cross-sections exceeding 50 mm.

Cold Forged Copper Parts

Cold forged copper components are formed at room temperature, utilizing the work-hardening characteristics of copper to achieve tight tolerances and smooth surface finishes. Typical cold forged copper products include copper press-fit contacts, copper rivet contacts, copper relay contacts, copper pin contacts, copper connector shells, copper threaded inserts, copper precision shafts, copper anchor bolts, and copper grounding studs. Cold forging produces near-net-shape parts with excellent repeatability—suitable for high-volume electrical and electronics manufacturing where dimensional accuracy within ±0.05 mm is required.

Copper Forged Electrical Connectors & Terminal Parts

Electrical-grade copper forgings are engineered specifically for high-current and high-voltage applications in power transmission and distribution. Products include copper palm terminals, copper compression lugs, copper bus clamps, copper earthing clamps, copper power line connectors, copper bolted cable connectors, copper transformer terminals, copper switchgear contacts, and copper high-current busbars. These components are forged from C11000 ETP copper or C10200 OFC, ensuring resistivity values below 1.724 µΩ·cm and contact resistance in the micro-ohm range.

Copper Forged Hydraulic & Plumbing Fittings

Copper forgings are extensively used in hydraulic and fluid systems due to copper’s corrosion resistance, pressure integrity, and leak-free sealing. Conex Metals supplies copper forged compression fittings, copper forged elbow fittings, copper tee fittings, copper end caps, copper reducing couplings, copper flare fittings, copper union nuts, copper olive inserts, and copper pressure nipples. These hydraulic-grade copper forged fittings conform to EN 1254, ASTM B61, and DIN 86252 standards and are rated for pressures up to 250 bar depending on wall thickness and alloy grade.

Copper Alloy Forgings – Brass and Bronze

In addition to pure copper forgings, Conex Metals produces forged parts in leaded brass (CW614N), naval brass (CW712R), phosphor bronze (CW451K), silicon bronze, aluminum bronze (CW307G), and beryllium copper (C17200). These copper alloy forgings offer enhanced machinability, wear resistance, or spring properties depending on alloy selection. Brass forged fittings, bronze forged valves, phosphor bronze forged bushings, and aluminum bronze forged bearing housings are standard product categories.

Custom Copper Forged Components

Conex Metals manufactures custom copper forgings to customer drawings, 3D models, or samples. Engineering support is available for die design, material selection, and process optimization. Custom capabilities include multi-cavity forging dies, progressive cold forging, warm forging (300–500°C), backward extrusion forging, upset forging, open-die forging, closed-die drop forging, press forging, and roll forging. Minimum order quantities start from 500 pieces for custom dies, with rapid tooling lead times of 3–4 weeks.

Copper Forged Parts for Earthing & Grounding Systems

Conex Metals produces a comprehensive range of copper forged earthing components including copper earth bars, copper earth clamps, copper rod-to-cable connectors, copper ground plate connectors, copper exothermic weld connectors, copper tape-to-rod clamps, copper parallel groove clamps, copper cable-to-earth rod bolted clamps, and copper bonding connectors. All earthing copper forgings comply with IEC 62305, BS 7430, and IEEE Std 80 for earthing system applications in substations, wind turbines, solar farms, railways, and industrial plants.

Key Features of Conex Metals Copper Forged Parts

• High-conductivity copper: ≥99.9% pure copper, conductivity ≥101% IACS (ETP) or ≥101.5% IACS (OFC)
• Superior mechanical strength: Tensile strength up to 320 MPa (work-hardened cold forgings)
• Dimensional accuracy: Tolerances to ±0.05 mm (cold forged), ±0.2 mm (hot forged)
• Surface finish: Ra 0.8–3.2 µm standard; polished or plated finishes available
• Weight range: 5 grams to 50 kg per piece
• Full traceability: Heat number, material certificate (EN 10204 3.1/3.2)
• Plating options: Tin, silver, nickel, chrome, or bare copper
• ISO 9001:2015 certified manufacturing

High Electrical Conductivity

Copper forged components from Conex Metals are produced from electrolytic copper cathode with a minimum purity of 99.9% Cu + Ag. The forging process preserves and enhances the crystal structure without introducing contaminants, ensuring electrical conductivity above 100% IACS, contact resistance below 10 µΩ, low transition resistance, thermal conductivity of 385 W/m·K, coefficient of thermal expansion 16.5 µm/m·K, and dielectric properties that make them ideal for HV/MV/LV switchgear and power distribution terminals.

Mechanical Strength and Fatigue Resistance

The forging process aligns the grain flow of copper along the contour of the part, dramatically improving mechanical performance over machined-from-bar alternatives. Key mechanical properties include 0.2% proof stress up to 250 MPa, ultimate tensile strength 250–320 MPa, elongation 10–35%, Brinell hardness 60–110 HB, fatigue limit at 10⁸ cycles 90 MPa, impact resistance (Charpy), creep resistance at elevated temperatures, and stress relaxation resistance—all critical for clamped electrical connections operating under vibration and thermal cycling.

Corrosion and Oxidation Resistance

Copper forgings exhibit outstanding resistance to corrosion in atmospheric, soil, and marine environments. The forging process produces a dense, pore-free surface that minimizes oxidation pathways. Conex Metals offers tin-plated copper forgings (5–25 µm), silver-plated copper forgings (3–15 µm), nickel-plated copper forgings (5–20 µm), hot-dip tinned copper components, electrolytic tinning, passivated copper parts, chromate conversion coated copper, and bare polished copper forgings depending on the service environment and contact requirement.

Dimensional Precision and Net-Shape Manufacturing

Precision closed-die forgings minimize secondary machining, reducing cost and lead time. Conex Metals achieves net-shape and near-net-shape copper forgings with flash-free precision die forgings, tight flash line control, coining operations for flat faces, thread rolling on forged shanks, CNC precision turning after forging, surface grinding of seating faces, broaching for internal profiles, and laser marking for part identification—delivering complete finished components from a single supply source.

Plating and Surface Treatment

Surface treatment selection depends on application: tin plating for solderability and contact oxidation prevention, silver plating for high-temperature contacts and microwave applications, nickel plating for wear and chemical resistance. Conex Metals offers electroplating, electroless plating, barrel plating, rack plating, selective plating, brush plating, hot dipping, passivation, chromate treatment, and oxide patination. All plating is RoHS-compliant and REACH-conforming; thickness certification per ISO 2177 and salt spray testing per ISO 9227.

Custom Engineering and Prototyping

Conex Metals provides complete engineering support from concept to production. Services include DFM (Design for Manufacturability) analysis, forging simulation (Deform-3D), die stress analysis (FEA), prototype forging in 2–3 weeks, first article inspection (FAI), PPAP documentation, control plans, FMEA, SPC implementation, and production validation testing—enabling customers to accelerate product development while minimizing tooling risk.

Technical Specifications

Standard Technical Parameters

Raw Material Grades – Copper Forgings

International Equivalent Standards

Product Types & Variants

Applications in Industry

Manufacturing Process

Conex Metals follows a rigorous multi-stage manufacturing process to ensure consistent quality in every copper forging: (1) Raw material procurement and incoming inspection by OES; (2) Billet preparation and heating to 650–870°C for hot forging; (3) Closed-die press forging on 100–2,500 ton hydraulic presses; (4) Flash trimming and in-line inspection; (5) Heat treatment (annealing/stress relief) as required; (6) CNC secondary machining for final dimensions; (7) Surface treatment and plating (tin, silver, nickel); (8) Final CMM inspection, hardness testing, and conductivity verification; (9) Material test report (EN 10204 3.1) issuance and dispatch.

Quality Standards and Certifications

Why Choose Conex Metals for Copper Forged Parts?

Conex Metals combines over two decades of metallurgical expertise with advanced forging capabilities to deliver copper forgings that perform reliably in the most demanding electrical and industrial applications. Our vertically integrated manufacturing ensures consistent quality and competitive pricing at US$ 18.90/Kg.

Frequently Asked Questions

Q1: What is the difference between hot forged and cold forged copper parts?

Hot forging is performed above 600°C producing complex shapes with good surface quality. Cold forging at room temperature produces tighter tolerances (±0.05 mm), better surface finish, and higher hardness. Hot forging suits heavy components over 5 kg; cold forging is preferred for precision high-volume parts.

Q2: What copper grades are available for forging?

Conex Metals forges C11000 (ETP), C10200 (OF), C10100 (OFE), C12200 (DHP), and alloys including CW614N (leaded brass), CW451K (phosphor bronze), CW307G (aluminum bronze), and C17200 (beryllium copper).

Q3: What is the minimum order quantity for custom copper forgings?

Standard items: 100 pieces or 50 kg. Custom copper forgings with new tooling: 500–1,000 pieces. Prototypes (10–50 pieces) available for development at engineering charges.

Q4: What plating options are available?

Bright tin plating (5–25 µm), silver plating (3–15 µm), nickel plating (5–20 µm), electroless nickel, chrome plating, hot-dip tinning, passivation, and phosphate coating. All RoHS-compliant with ISO 2177 thickness certification.

Q5: Do you supply material test reports with copper forgings?

Yes. EN 10204 3.1 MTRs are issued as standard. EN 10204 3.2 (third-party inspection) is available on request. Reports confirm chemical composition (OES) and mechanical properties.

Q6: What tolerances can be achieved on copper forgings?

Hot forged: ±0.2–0.5 mm as-forged, ±0.05 mm after CNC machining. Cold forged: ±0.05–0.1 mm as-forged, ±0.01 mm after coining/grinding.

Q7: Can copper forgings replace copper castings for electrical applications?

Yes. Copper forgings are superior to castings: higher density, zero porosity, better mechanical strength, and superior surface finish. Recommended for current-carrying components and earthing connectors.

Q8: What are the export markets for Conex Metals?

Conex Metals exports to 40+ countries including USA, Germany, France, UK, UAE, Saudi Arabia, South Africa, Australia, Singapore, Brazil, and Mexico.

Q9: What is the lead time for copper forged parts?

Standard items: 1–2 weeks from stock. Custom forgings with existing tooling: 3–4 weeks. New tooling: 4–6 weeks tooling + 2–4 weeks production.

Q10: Are copper forgings RoHS and REACH compliant?

Yes. All copper forgings comply with RoHS 2011/65/EU and REACH Regulation (EC) No 1907/2006. Declarations of conformance provided with each shipment.

Multilingual Equivalent Terms

Related Copper Products from Conex Metals

• Copper Busbars – High-conductivity ETP copper busbars for switchgear, panels, and transformers
• Copper Extruded Parts, Components & Profiles – Complex section profiles and structural copper extrusions
• Copper Parts – Full Product Range – All copper machined, fabricated, and formed components

Request a Quote – Copper Forged Parts

Contact Conex Metals today for a competitive price on copper hot forged parts, cold forged copper components, or custom copper forgings. Our engineering team will assist with material selection, design optimization, and cost reduction. Price from US$ 18.90/Kg – volume discounts available for orders above 500 kg.

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