Nickel Alloy Capillary Pipe

Overview

Nickel Alloy Capillary Pipe is a high-performance material composed of high-purity nickel and appropriate amounts of chromium, molybdenum, and other alloying elements, with excellent corrosion resistance, high-temperature stability, and mechanical strength. It is widely used in aerospace, chemical, medical, and other fields, used to manufacture tiny pipes and components that need to maintain precise conduction and structural stability in extreme environments. Our company has more than ten years of production and export experience in non-ferrous metal products, and can provide customers with high-quality nickel wire, nickel targets, rods, valve parts, and other pure nickel and nickel alloy products. If you are interested, please feel free to contact us by email.

Nickel Alloy Advantages

  • Excellent corrosion resistance can effectively resist a variety of corrosive media, especially in high-temperature corrosive environments.
  • High temperature strength, low thermal expansion coefficient, stable structure and performance in extreme temperature environments, suitable for continuous high temperature conditions such as heat exchange and furnace tubes.
  • It maintains excellent tensile strength and ductility at room temperature and high temperature, and can maintain good toughness even in low temperature environments, making it suitable for vibration and impact conditions such as aerospace.
  • Excellent forming and processing performance, suitable for drawing ultra-fine diameter (up to 0.1mm or less) capillaries to meet the needs of medical and electronics miniaturization.

Dimension

Grade Ni200/Inconel 718/Hastelloy C22/C276
OD 0.1mm-10mm
ID 0.08mm-6mm
WT 0.05mm-1.5mm
Length 100mm-6000mm
Surface finish Ra≤0.4–0.8 μm
Tensile strength 600-1200 MPa
Delivery time 25 days
Certification ISO 9001
Grade Core corrosion resistance properties
 
Precision drawing / capillary machining
 
Most suitable application scenario
 
Inconel 625 Resistance to pitting, crevice corrosion, and chloride ion stress corrosion; Antioxidant, acid, and alkali resistance Excellent, ultra-fine, thin-walled aerospace, oil and gas, seawater, chemical fluid transportation, precision instrument pipes
Inconel 718 High temperature oxidation resistance, medium corrosion resistance, super creep resistance Good for high-precision thin-walled pipes Aviation hydraulics, engine lines, high temperature sensor casings, high pressure capillary tubes
Monel 400 Resistant to seawater, hydrofluoric acid, and salt water; Excellent reducibility environment Excellent, easy to cold draw, suitable for fine capillary tubes Marine equipment, seawater systems, refrigeration/heat exchange capillaries
Hastelloy C276 All-round corrosion resistance: resistant to strong oxidation/reducing acids, chlorine, wet chlorine, and organic acids Good and can be made into precision thin-walled pipes Strong chemical corrosion, pharmaceutical, high-purity fluid/chromatography capillary
Nickel 200/201 Pure nickel, resistant to strong alkali, fluorine gas, and a high-purity environment Excellent, easy to draw ultra-fine capillary Electronics, semiconductors, high-purity gases, strong alkali environments, electromagnetic shielding capillaries

Application

  1. Petrochemicals: Key components for pipelines, valves, and pumps handling corrosive media such as strong acids and alkalis.
  2. Aerospace: Precision conduits for fuel systems, hydraulic control, and environmental control systems.
  3. Electronics: Thermocouple protective sheaths, special conduits in high-precision electronic components, and semiconductor manufacturing equipment.
  4. Medical Equipment: Interventional catheters, endoscopic instruments, sensor sheaths.
  5. Energy & Power: Nuclear power plant control rod drive mechanisms, instrument piping, hot-end components of gas turbines.
  6. Precision Instruments: Separation columns and transfer lines for analytical equipment such as chromatographs and mass spectrometers.
  7. Marine Engineering: Corrosion-resistant piping for underwater exploration equipment and seawater desalination systems.

Process

(1) Pipe billet preparation: Use high-quality seamless thick-walled pipes as the initial pipe blank. These billets are typically made from high-purity raw materials through vacuum melting, forging, and hot perforation.
(2) Cold drawing/cold rolling: The pipe billet is drawn (cold drawn) or rolled on a rolling mill (cold rolling) through a series of dies with gradually reducing pore size at room temperature, to achieve diameter reduction and wall reduction.
(3) Intermediate annealing: usually solution treatment, that is, the pipe is heated to a specific high temperature and then cooled quickly to eliminate internal stress, restore plasticity, and prevent the material from cracking in subsequent processing.
(4) Finishing treatment: Through surface treatment such as pickling, cleaning, and lubrication coating, strict dimensional testing, non-destructive testing, and mechanical property testing are carried out to ensure that its inner and outer diameter tolerances, wall thickness uniformity, surface finish, and other indicators meet strict requirements.

Pictures

Nickel Capillary Tube

Capillary Tube

Packing

packing1 packing7