High-Purity C10100 Oxygen-Free Copper Tube - China Suppliers & Factory for HVAC, Plumbing, and Heat Exchange Applications
Oxygen-free copper tube
Product features:
High purity, high elongation, high corrosion resistance.
Material Standards
Material:
C10100 oxygen-free copper
Copper content:
≥ 99.99%
Applicable standards:
ASTM B187, GB/T 1527, GB/T 2040
Physical Properties
Density:
8.96 g/cm³
Melting point:
1083℃
Thermal conductivity:
386 W/(m·K)
Electrical conductivity:
≥ 101% IACS
Hardness:
Soft state (annealed) / Semi-hard / Hard state selectable
Tensile strength:
Soft state 200~250 MPa
Elongation:
≥ 30% (soft state)
Capillary copper tubes are copper tubes with extremely thin inner and outer diameters. They are widely used in household refrigerators, electric freezers, high-precision instruments, electronic equipment and instruments, etc. The material commonly used is high-quality copper such as TP2 and TU1, which has excellent thermal conductivity and corrosion resistance.
Application Scenarios:
① Refrigeration system:
Capillary copper tubes are widely used in small-sized Freon refrigeration devices with a capacity of less than 10KW. By changing the length and diameter, they can meet different working conditions and cooling capacity requirements.
② Gas transportation:
Applicable to water cooling projects and environmental protection projects, etc.
③ Daily life:
In building water supply systems, capillary copper tubes are widely used due to their good thermal conductivity and high low-temperature strength.
Features of C10100 oxygen free copper:
| Feature | Benefit |
|---|---|
| High Purity (≥99.9% Cu) | Ensures maximum conductivity and consistent performance |
| Excellent Thermal Conductivity | 386 W/(m·K) — 7x higher than steel, ideal for heat exchangers and AC systems |
| Superior Corrosion Resistance | Naturally forms a protective oxide layer; lasts 50+ years in water systems |
| Outstanding Ductility | Easily bent, flared, and welded without cracking — reduces installation time |
| Antimicrobial Properties | Kills 99.9% of bacteria on contact; safe for drinking water and medical use |
| 100% Recyclable | Eco-friendly; recyclable without loss of performance |
Frequently Asked Questions (FAQ)
What is C10100 oxygen-free copper?
C10100 is a high-grade oxygen-free copper with a purity level of at least 99.99%. It offers excellent electrical and thermal conductivity, making it ideal for high-precision electrical and heat-exchange applications.
What are the main applications of capillary copper tubes?
They are widely used in small-scale refrigeration systems (under 10KW) like refrigerators and freezers, gas transportation lines, water cooling projects, and high-precision instruments.
Why is the high thermal conductivity of these tubes beneficial?
With a thermal conductivity of 386 W/(m·K), these tubes transfer heat approximately 7 times faster than steel, which greatly improves the energy efficiency of HVAC and cooling systems.
Do these copper tubes comply with international standards?
Yes, our oxygen-free copper tubes are manufactured to comply with major international and national standards, including ASTM B187, GB/T 1527, and GB/T 2040.
Are these tubes easy to bend and install?
Yes, they feature outstanding ductility (with elongation ≥ 30% in the soft state), allowing them to be easily bent, flared, and welded without cracking, which simplifies the installation process.



