Copper Pins, Copper Electric Pins,Copper Pins for Electric Connectors – Machined & Cold Forged
A1 Metallics is a specialized manufacturer and global exporter of Copper Pins for Electric Connectors, produced via precision CNC Machining and Cold Forging processes. Our copper connector pins are critical components in electrical connector systems, ensuring reliable current transfer, low contact resistance, and mechanical durability. With 25+ years of manufacturing experience and state-of-the-art production facilities in Jamnagar, India, A1 Metallics is your trusted partner for high-quality copper contact pins.
Manufacturing Processes
CNC Machined Copper Pins
Machined copper pins are manufactured on multi-axis CNC lathes and turning centres from copper bar stock. This process delivers exceptional dimensional accuracy, complex geometries, fine surface finishes (Ra 0.4–1.6), and tight tolerances (±0.01mm). Ideal for high-precision connector applications in aerospace, defence, medical, and industrial sectors.
Also known as: CNC turned copper pins | copper machined contact pins | copper lathe-turned pins | precision copper pins | copper screw machine parts
Cold Forged Copper Pins
Cold forged copper pins are produced by cold forming copper rod/wire through dies under high pressure without heating. This process creates a highly dense grain structure, resulting in superior mechanical strength, excellent surface finish, and minimal material waste. Cold forging also enhances conductivity by work-hardening the copper. Ideal for high-volume production of standard connector pins.
Also known as: cold headed copper pins | cold formed copper contacts | impact extruded copper pins | copper press-formed pins | copper cold-worked contact pins
Types of Copper Connector Pins
- Round Copper Contact Pins – Standard male/female connector pins for industrial, automotive, and power connectors
- Flat Copper Blade Pins – Tab and blade-type contacts for PCB and panel connectors
- Spring Copper Pins (Pogo Pins) – Spring-loaded contact pins for test equipment and PCB assemblies
- Hollow Copper Socket Pins (Female) – Machined female contact sockets for multipin connectors
- Threaded Copper Pins – Threaded connector pins for screw-lock applications
- Custom Profile Copper Pins – Non-standard shapes per customer drawing
Related Terms
Copper Contact Pins | Copper Connector Contacts | Copper Male Pins | Copper Female Sockets | Copper Electrical Contacts | Copper Terminal Pins | Copper Plug Pins | Copper Socket Contacts | Copper PCB Pins | Copper Crimp Pins | Copper Insert Pins | Copper Relay Contacts | Copper Switch Contacts | Copper Spring Contacts | High Conductivity Copper Pins | Copper Pogo Pins | Beryllium Copper Pins
Copper Grades & International Equivalents
| Grade | US (UNS) | European (EN) | Indian (IS) | British (BS) | Key Property |
|---|---|---|---|---|---|
| ETP Copper (C11000) | UNS C11000 | CW004A (Cu-ETP) | IS 191 ETP | C101 | High conductivity (100% IACS), standard connector grade |
| Oxygen-Free Copper (C10200) | UNS C10200 | CW008A (Cu-OF) | IS 191 OF | C103 | Ultra-pure, 101% IACS, for sensitive electronics |
| Tellurium Copper (C14500) | UNS C14500 | CW118C (CuTeP) | — | C109 | Free-machining, 95% IACS, excellent for CNC pins |
| Beryllium Copper (C17200) | UNS C17200 | CW101C (CuBe2) | — | — | High strength, spring hardness, fatigue resistant |
| Copper-Chromium (C18200) | UNS C18200 | CW105C (CuCr1) | — | — | High strength with good conductivity for heavy-duty |
| Phosphor Bronze (C51000) | UNS C51000 | CW451K (CuSn5) | IS 407 | PB102 | Spring pins, connectors requiring elasticity |
Specifications
- Diameter Range: 0.5mm – 50mm
- Length Range: 3mm – 300mm
- Tolerances: ±0.01mm (machined), ±0.05mm (cold forged)
- Surface Finish: Bright, Gold Plated, Silver Plated, Tin Plated, Nickel Plated
- Standards: IEC 60512, MIL-C-39012, DIN 41612, IEC 61984
- Thread Options: Metric, UNC, UNF as required
Applications
- Industrial multipole connectors and plugs
- Automotive electrical connectors (EV and HV)
- PCB connectors and backplane connections
- Aerospace and defence connector systems (MIL-spec)
- Medical device connectors
- Power distribution and switchgear contacts
- Test & measurement connector sockets
- Relay and switch contacts
Why Choose A1 Metallics?
- ✅ Dual Manufacturing Capability – Both CNC machining and cold forging in-house for optimal process selection
- ✅ ISO 9001:2015 Certified – Consistent quality with full traceability
- ✅ Wide Material Range – ETP, OFC, Tellurium Copper, Beryllium Copper, Phosphor Bronze available
- ✅ High Volume Production – Millions of pieces per month capability
- ✅ Surface Plating Services – Gold, silver, tin, nickel plating available
- ✅ Tight Tolerances – ±0.01mm achievable with CNC machining
- ✅ Global Supply – Exporting to connector manufacturers across 40+ countries
- ✅ Custom Development – Full prototyping support with FAIR reports
Request a Quote
Looking for precision Copper Pins for Electric Connectors – machined or cold forged? Send us your drawing or sample for a competitive quote from A1 Metallics.
📧 sales@a1metallics.com | 📞 +91-22-43449300/27
