Hastelloy c276 capillary tube
As China’s leading supplier of Hastelloy,we specialize in manufacturing precision Hastelloy C276 capillary tubing.
The exceptionally low carbon and silicon content in Hastelloy C276 effectively mitigates multiple risks during welding.
Consequently, this material boasts an outstanding 50-year performance record in various corrosive chemical environments.
Hastelloy C276 capillary tubing falls under the category of small-diameter alloy tubing,presenting higher processing complexity.The production process involves straightening and polishing coiled Hastelloy C276 tubing.Regarding manufacturing techniques,we offer both seamless and welded Hastelloy C-276 capillary tubing.
For polishing processes,we provide multiple options including MP,EP, BA,and AP to meet diverse requirements.
Specification of Hastelloy c276 capillary tube
| Product | Hastelloy c276 capillary tube |
| Working Temperature | -271℃ to 400℃ | -455℉ to 750℉ |
| Dimension Range | Outside Diameter (OD): 0.4 – 16 mm Wall Thickness (THK): 0.1 – 3 mm Length (L): 0.5 – 12 m The size can be customized according to ASME B36.10 / ASME B36.19 |
| Schedules | SCH 5, 10, 40, 80, 160, XXS, XXH |
| Materials | Hastelloy C276 | UNS N10276 | W.Nr.2.4819 | DIN/EN 2.4606 |
| Standards | ASTM B622 / ASME SB 622 / ASTM B626 / ASME SB 626 |
| Surface Finish |
Mechanical Polish Electropolish Bright Annealed Annealed Polish |
| Corrosion Resistance Specifications |
Excellent Resistance To: Chloride Acids Halides Oxidizing Environments Sulfide Stress Cracking |
| Applications | Chemical & Petrochemical Processing Oil & Gas Industry Aerospace Pollution Control Power Generation Marine Medical |
| Our Strength | Over 10 Years Experience Exporting Pipes & Tubings Stock Available In Common Sizes Customized Fabrication Available Package Supplying of Piping Materials Strict QC With PMI Testing For Every Batch Experience in Exporting to the US,Germany,UAE,etc. Third Party Inspection Available |
For more information on Hastelloy c276 tubings and other products, please contact us.
Hastelloy c276 capillary tube Chemical Composition (%)
| Ni | Cr | Fe | Mo | W | Co |
| Balance | 14.5 – 16.5 | 4 – 7 | 15 – 17 | 3 – 4.5 | ≤ 2.5 |
| C | Mn | Si | S | P | V |
| ≤ 0.01 | ≤ 1 | ≤ 0.08 | ≤ 0.03 | ≤ 0.04 | ≤ 0.35 |
Hastelloy c276 capillary tube Mechanical Properties(Typical value range)
| Tensile Strength | Yield strength | Elongation | Hardness |
| ~ 690 – 790 MPa | ~ 283 – 355 MPa | ≥ 40 % | ≤ 90 – 95 HRB |
Manufacturing Process for Hastelloy c276 capillary tube
Manufacturing Hastelloy C276 capillary tubes involves extensive cold working (drawing/rolling) of mother tubes,followed by precise cleaning,heat treatment (annealing & quenching),straightening,cutting,and rigorous inspection,with options for seamless (ASTM B622) or welded (ASTM B626) methods,aiming for tight tolerances and excellent corrosion resistance for high-precision applications.The process focuses on maintaining material integrity and surface finish through steps like electropolishing or bright annealing.
Material Preparation
Start with C276 strip or mother tube (seamless or welded).
Chemical cleaning,degreasing,and end preparation.
Cold Working
Cold Drawing/Rolling:
Repeated passes through dies or rollers to reduce diameter and wall thickness,increasing strength.
Intermediate Annealing:
Heat treatment (around 1150-1175°C) followed by rapid water quenching to restore ductility and corrosion resistance after cold working.
Processing & Finishing
Cleaning:
Thorough cleaning (acid pickling/chemical cleaning) to remove contaminants.
Straightening:
Machines to ensure straightness.
Surface Treatment:
Mechanical Polishing (MP),Electropolishing (EP),or Bright Annealing (BA) for superior internal/external finish.
Purging:
Inert gas (Nitrogen) purging to keep internal surfaces clean.
Cutting & Marking:
Precision cutting to length, then marking for identification.
Quality Control & Testing
Eddy Current Testing (ECT):
Detects surface/subsurface flaws.
Hydrostatic Testing:
Checks for leaks under pressure.
Visual & Dimensional Checks:
Ensures tight tolerances.
Chemical & Mechanical Tests:
Verifies alloy composition and properties.
Key Considerations
Seamless vs. Welded:
Seamless offers high integrity;welded (often TIG) requires post-weld solution annealing to match seamless quality.
Annealing:
Critical for cold-worked parts to regain optimal corrosion resistance,requiring rapid cooling.
Purity:
Essential for applications in chemical,pharma,and medical fields,requiring meticulous cleaning.
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