Cobalt-chromium tubes are high-performance metal tubes manufactured primarily from cobalt-chromium alloys, often alloyed with molybdenum, nickel, and tungsten to enhance their corrosion resistance, strength, and hardness. Known for their outstanding resistance to both acidic and alkaline environments, these alloy tubes also offer excellent mechanical strength and wear resistance. Their exceptional material properties make them a preferred choice for demanding applications across medical devices, aerospace systems, petrochemical processing, power generation, and precision engineering.
Available Grades: L605
Outer Diameter: 6 mm - 150 mm, or customizable
Wall Thickness: > 5 mm, or customizable
Length: 100 mm and above (customizable)
| Density | 8.3-8.9 g/cm³ |
| Melting Point | 1310-1495 ℃ |
| Coefficient of Thermal Expansion (CTE) | 12.5-14.2µm/m·°C (20-250°C) |
| Thermal Conductivity | 14-69 W/m·K |
| Specific Heat Capacity | 20 J/kg·K |
| Hardness | HRC 30-55 |
| Tensile Strength | ≥700 MPa (e.g., medical-grade L605 in annealed condition) |
| Yield Strength | ≥550 MPa |
| Elongation | ≥3.0% - 15% |
- High tensile strength (≥700 MPa)
- Excellent machinability (annealed elongation ≥35%)
- Outstanding corrosion resistance (corrosion rate
- Good thermal and electrical conductivity (thermal conductivity: 12.3–23.9 W/m·K; electrical conductivity: ~20% IACS)
- Exceptional wear resistance (hardness: HRC 40–55; wear rate is only 1/10 that of 304 stainless steel)
- Strong creep resistance (retains high strength at 760°C)
- Medical: Used in coronary stents (e.g., L-605 alloy tubes), providing radial strength and promoting rapid endothelialization for vascular repair
- Aerospace: Applied in rocket engine nozzles serving as injector components capable of withstanding oxidation in liquid oxygen/kerosene flame environments
- Precision instruments: Utilized as thermocouple protection tubes, cobalt-chromium-tungsten alloy tubes resist vibration and wear at temperatures up to 1200°C
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- Raw material purity is verified through spectrographic analysis, and key production processes are monitored in real time.
- Finished products undergo 100% inspection, with a pass rate of over 99%.
- Products comply with applicable standards, including ASTM and GB, and have obtained ISO, TÜV, CE, RoHS, and other certifications.
Strict Quality Control -
Reliable DeliverySmall-batch orders are delivered within 10–30 days, while large-volume orders usually take around 60 days, helping ensure on-time delivery.
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- With over 20 years of industry experience, DLX Alloy provides customized alloy solutions, adjusting material specifications and chemical compositions according to customer requirements and offering professional technical support.
- Standard and custom are available for fast prototyping, with standard samples ready in 7–10 days.
- Sample testing supports small-batch testing and validation, helping customers verify material performance through actual test data and reduce trial-and-error costs during R&D.
Customization and Sample Support