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0.025mm 6N/7N High-purity Super Fine Insulated/Bare OCC Copper Wire for Audio

Basic Information
Place of Origin: Tianjin, China
Brand Name: Ruiyuan
Certification: ISO9001/ISO14001 /UL/SGS
Model Number: 0.025mm
Minimum Order Quantity: 1
Detail Information
Conductor Material: Copper 6N/7N Diameter: 0.025mm
Insulation Material: Enameled Rated Voltage: /
Application: Audio Conductor Type: Solid
Type: Insulated Product Name: OCC Copper Wire
Standard: IEC/JIS/NEMA Conductor: OCC 6N/7NCopper
Solderability: Yes Packing: Carton
Delivery Time: 7-10days Feature: Rapid Signal Transmission
MOQ: 5kg Payment: T/T, Paypal, Etc.
Highlight:

0.025mm OCC copper wire

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6N/7N insulated audio wire

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high-purity bare copper wire


Product Description

0.025mm high-purity super fine OCC copper wire for audio applications
High-Vacuum Continuous Casting Equipment

Our production begins with high-vacuum continuous casting equipment, ensuring exceptional purity and a uniform single-crystal structure in every OCC copper wire.

High-vacuum continuous casting equipment used for OCC copper wire production
Continuous casting line for high-purity oxygen-free copper wire manufacturing
Production Process

From continuous casting to ultra-fine drawing, each stage is tightly controlled to preserve the integrity of the single-crystal copper structure.

Ultra-fine copper wire drawing process for audio-grade OCC wire
Precision drawing machinery producing 0.025mm super fine copper wire
Single Crystal Copper vs. OFC Copper Fracture Comparison

The fracture surfaces below illustrate the structural difference between single crystal copper and ordinary oxygen-free copper (OFC).

Fracture surface of single crystal copper wire showing uniform grain structure

Single crystal copper fracture

Fracture surface of ordinary OFC copper wire showing polycrystalline grain boundaries

OFC fracture

Surface Quality After Ultra-Fine Drawing

After being drawn into ultra-fine wire, single crystal copper maintains a smoother, more uniform surface than ordinary OFC copper.

Surface of single crystal copper after being drawn into ultra-fine wire

Surface of single crystal copper after being drawn into ultra-fine wire

Surface of ordinary OFC after being drawn into ultra-fine wire

Surface of ordinary OFC after being drawn into ultra-fine wire

Mechanical Properties: Single Crystal Copper vs. Polycrystalline Copper
Sample Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Vickers Hardness (HV) Reduction of Area (%)
Single Crystal Copper 128.31 83.23 48.32 65 55.56
OFC Copper 151.89 121.37 26 79 41.22
Mechanical testing of single crystal copper wire samples
Tensile strength and elongation measurement of ultra-fine copper wire
Vickers hardness testing on single crystal and OFC copper wire
Multi-Scenario Applications

Our 0.025mm high-purity OCC copper wire is engineered for demanding audio environments, delivering reliable signal transmission across a wide range of installations.

  • High-end home theater systems
  • High-end HiFi audio systems
  • KTV wiring
  • Car audio systems
  • Multimedia audio-visual rooms
  • Cinemas and banquet halls
  • Lecture halls and multimedia classrooms
  • Gyms, hotels, and restaurants
  • Office meeting rooms
  • Concert and multi-channel sound systems
OCC copper wire used in high-end home theater audio systems
Super fine OCC copper wire applied in HiFi speaker wiring
OCC copper wire installation in multimedia audio-visual room
Ultra-fine copper wire for car audio and multi-channel sound systems
High-purity OCC copper wire for concert and banquet hall audio systems
Company Profile

Ruiyuan was established in 2002 and has been focusing on different kinds of high-quality wires: enameled round copper wire, rectangular enameled copper triple insulated wire, silk covered Litz wire, OCC wire, and self-bonding wire.

All of our products are UL and RoHS certified, in line with industry standards including IEC60317, JIS C 3202, NEMA, and NW82. Ruiyuan has a heritage of innovation, along with advancements in enameled wire, our company has grown through an unwavering commitment to integrity, service, and responsiveness to our customers. We look forward to being your most trusted partner.

Ruiyuan wire manufacturing facility and company profile
Frequently Asked Questions

1. Can I get a sample for testing before placing a bulk order?

Of course. Samples can be offered to you free of charge, but express costs should be undertaken by the buyer.

2. What is your lead time?

Small sample orders take 3–5 working days; large orders should be completed within 15 working days after order confirmation.

3. What are your trade terms?

EXW, CPT, FOB, CIF, DDU, and DDP are all acceptable.

4. What are your payment terms?

T/T, D/P, D/A, L/C, and PayPal.

5. What express services do you offer?

FedEx, DHL, TNT, and UPS with great discounts of up to 80%.

Contact Details
Rebecca Li

Phone Number : +8613920472299

WhatsApp : +8615516180251