Product Description
1.0mm Tinned Copper Wire (Pure Red Copper Core, 3-5μ Tin Coating)
Product Overview
As a high-reliability electrical conductor from Huona New Material,
the 1.0mm tinned copper wire integrates two core advantages: the
ultra-high conductivity of pure red copper (T2 grade) and the
anti-corrosion protection of a precision 3-5μ tin coating.
Manufactured via Huona’s advanced continuous hot-dip tinning
process—equipped with real-time thickness monitoring and
temperature control—the wire ensures the tin layer adheres
uniformly to the 1.0mm solid copper core, no pits or thin spots. It
solves two key pain points of bare copper wire: oxidation-induced
conductivity decline and poor solderability, making it a staple for
electrical connections requiring long-term stability, easy
assembly, and resistance to humid/industrial environments.
Standard & Material Certifications
- Conductor Grade: T2 pure red copper (complies with GB/T 3956-2008; equivalent to
ASTM B33, IEC 60288 Class 1)
- Tin Coating Standard: GB/T 4910-2009, IEC 60317-2 (lead-free: Pb ≤0.005%, Sn ≥99.9%)
- Quality Certifications: RoHS 2.0 compliant, ISO 9001 quality management system, SGS
environmental testing approval
- Manufacturer: Huona New Material (15+ years of copper conductor processing
experience)
Core Performance Advantages
1. Pure Red Copper Conductor: Unmatched Conductivity
- Electrical Conductivity: ≥98% IACS (20℃), far exceeding alloyed copper (e.g., CuNi alloys:
~20% IACS) and aluminum (61% IACS). Ensures minimal voltage drop in
low-voltage circuits (e.g., 12V automotive wiring, 5V USB cables)
and fast signal transmission for sensors.
- Mechanical Ductility: Elongation ≥30% (25℃) and tensile strength ≥200 MPa. Can
withstand repeated bending (180° bend test ≥10 times without
breaking) for wiring in tight spaces (e.g., appliance internal
compartments, PCB edge connections).
2. 3-5μ Precision Tin Coating: Targeted Protection
- Anti-Oxidation Barrier: Dense tin layer blocks air/moisture from contacting copper,
preventing the formation of conductive copper oxide (CuO/Cu₂O).
Even in 80% humidity for 12 months, the wire maintains ≥97% initial
conductivity (vs. bare copper: drops to 85% in 3 months).
- Enhanced Solderability: Tin’s low melting point (232℃) enables "instant wetting" during
soldering—no pre-cleaning or flux activation required. Reduces PCB
assembly time by 40% vs. bare copper (which needs oxide removal via
sanding/chemicals).
- Balanced Thickness Design: 3-5μ thickness avoids two extremes: thinner coatings (<3μ)
can’t cover copper flaws, while thicker coatings (>5μ) make the
wire brittle (prone to cracking during bending).
Technical Specifications
Parameter | Detailed Value |
Nominal Diameter (Overall) | 1.0mm (conductor: ~0.992-0.994mm; tin coating: 3-5μ) |
Diameter Tolerance | ±0.02mm |
Tin Coating Thickness | 3μ (minimum) - 5μ (maximum); thickness uniformity: ≥95% (no spot
<2.5μ) |
Electrical Conductivity (20℃) | ≥98% IACS |
Tensile Strength | 200-250 MPa |
Elongation at Break | ≥30% (L0=200mm) |
Tin Adhesion | No peeling/flaking after 180° bend (radius=5mm) + tape test (3M 610
tape, no tin residue) |
Corrosion Resistance | Passes ASTM B117 salt spray test (48h, 5% NaCl, 35℃) - no red rust,
tin blistering |
Operating Temperature Range | -40℃ (low-temperature flexibility, no cracking) to 105℃ (continuous
use, no tin melting) |
Product Supply & Customization
Item | Specification |
Supply Form | Solid conductor (standard); stranded conductor (custom: 7/0.43mm,
19/0.26mm) |
Spool Configuration | 500m/1000m per spool (spool material: ABS plastic, diameter: 200mm,
core hole: 50mm) |
Surface Finish | Bright tin (default); matte tin (custom, for anti-glare
applications) |
Additional Treatments | Optional insulation (PVC/XLPE/Silicone, thickness: 0.1-0.3mm,
color: black/red/blue) |
Packaging | Vacuum-sealed aluminum foil bag (moisture-proof) + outer carton
(with desiccant, anti-impact) |
Typical Application Scenarios
- Household Appliances: Internal wiring for washing machines (humidity-resistant),
refrigerators (low-temperature flexibility), and microwave ovens
(heat resistance up to 105℃).
- Automotive Electronics: Connector terminals for car batteries (anti-corrosion), sensor
wiring (stable signal), and in-car infotainment systems (low
voltage drop).
- PCB & Consumer Electronics: Through-hole soldering for Arduino/Raspberry Pi boards, USB-C
cable conductors, and LED strip wiring (easy assembly).
- Industrial Control: Wiring for PLC panels (industrial humidity resistance) and
low-voltage power supplies (minimal energy loss).
- Medical Devices: Internal wiring for portable diagnostic tools (lead-free,
compliant with biocompatibility standards) and small medical pumps
(flexible bending).
Quality Assurance from Huona New Material
Every batch of 1.0mm tinned copper wire undergoes three key
inspections:
- Tin Thickness Test: X-ray fluorescence (XRF) analyzer (precision: ±0.1μ) - 5 sampling
points per spool.
- Conductivity Test: Four-point probe tester (accuracy: ±0.5% IACS) - 3 samples per
batch.
- Mechanical Test: Universal testing machine (tensile/elongation) + bend tester
(adhesion) - 2 samples per batch.
Free samples (1m length, 2-3 pieces per specification) and detailed
Material Test Reports (MTR) are available upon request. Our
technical team provides 1-on-1 support for custom requirements
(e.g., insulation material selection for high-temperature
applications, stranded conductor design for flexible wiring).