Ultra-Low Oxygen for High-Temperature Stability
Our OFHC copper rod stands out for one critical property. The oxygen content is extremely low. This matters more than most people realize. Oxygen in copper creates problems at high temperatures. It causes internal oxidation. It also leads to hydrogen embrittlement. These issues occur during welding, brazing, or high-temperature processing. Our OFHC rod resists these problems. The low oxygen content also improves conductivity. Electrons move more freely through oxygen-free copper. This makes a real difference in high-performance applications. Our customers in the vacuum equipment industry prefer OFHC. The material outgasses less in vacuum conditions. This maintains the vacuum quality. The product also works well in cryogenic applications. The electrical properties remain stable at very low temperatures.
Special Handling for OFHC Quality
We use strict handling procedures for OFHC material. Contamination can affect the low oxygen content. Our workers follow specific protocols. They use clean handling tools. The storage area keeps the material clean and dry. We also monitor the oxygen content periodically. This confirms we stay within specification. The test involves specialized equipment. Our lab technicians are trained in the procedure. We keep records of all test results. This documentation supports our quality claims. The rod comes in 16mm and 20mm diameters. Both sizes are readily available from stock. The material meets GB/T5585.1-2026 standards.
Technical Specifications
Copper purity reaches Cu≥99.90%. Total impurities stay below 0.10%. Conductivity is ≥97.3% IACS. Resistivity at 20°C stays ≤0.0177 Ω·mm²/m. Density is 8.9 g/cm³. Tensile strength ranges from 220 to 260 MPa. Yield strength exceeds 170 MPa. Hardness is 65 to 90 HV. Elongation is 17% or higher.
Where Low Oxygen Provides an Edge
OFHC copper rod serves the most demanding technical applications. High-end electrical equipment specifies it. Vacuum devices and electron tubes need it. The low oxygen content prevents contamination. Cryogenic equipment also benefits from the stable properties. Semiconductor manufacturing uses OFHC for critical connections. The material resists the high-temperature cycles of processing. Our customers include scientific instrument manufacturers. Aerospace applications also rely on OFHC. The product meets strict quality standards. Export orders continue to grow. Customers appreciate the documented quality. The low oxygen content gives them confidence in the material.
Order and Production Information
We start production right after order confirmation. Standard sizes ship within one week. Custom sizes take one to two weeks. The minimum order is 1000 kilograms. Mixed specifications are allowed. We welcome third-party inspection at our factory. Our raw material inventory stays well-stocked. We accept USD, EUR, and CNY.
Technical Parameters
|
Parameter |
Value |
|
Material Grade |
T2 Copper (OFHC) |
|
Copper Purity |
Cu≥99.90% |
|
Standard |
GB/T5585.1-2026 |
|
Electrical Conductivity |
≥97.3% IACS |
|
Resistivity (20°C) |
≤0.0177 Ω·mm²/m |
|
Density |
8.9 g/cm³ |
|
Tensile Strength |
220–260 MPa |
|
Yield Strength |
≥170 MPa |
|
Hardness |
65–90 HV |
|
Elongation |
≥17% |
|
Stock Sizes |
Φ6, Φ8, Φ10, Φ18, Φ20, Φ22 |
Hot Tags: ofhc copper rod, China ofhc copper rod manufacturers, suppliers, factory
