Frequently Asked Questions (FAQ)
What are the primary applications of 304 capillary tubing?
304 capillary tubing, especially in 1.6*0.4mm coiled form, is widely used for medical instruments, precision equipment, and hydraulic control systems due to its high accuracy and corrosion resistance.
What materials and grades are available for these capillary tubes?
We supply a wide range of grades including stainless steel 201, 304, 304L, 316, 316L, duplex steels like 2205 and 2507, as well as nickel alloys like 625 and 825.
Can you provide both seamless and welded capillary tubes?
Yes, we manufacture and supply both seamless and welded stainless steel capillary tubes, allowing you to choose the best option based on your pressure and structural requirements.
What standards do the capillary pipes comply with?
Our products are manufactured in strict compliance with international standards, including ASTM A269, A249, A789, A312, SUS, DIN, JIS, and GB.
What quality tests and inspections are performed on the tubing?
We perform comprehensive testing including Yield Strength, Tensile Strength, Hardness, and Hydrapress Measurement. Third-party inspections and quality certifications are guaranteed for all shipments.
What is the advantage of using bright annealed surface tubing?
Bright annealing provides a clean, smooth, and scale-free surface finish. It keeps the tubing soft and flexible for coiling and bending while ensuring excellent interior cleanliness, which is critical for medical and precision fluid transit.