304 316l Micro Medical Grade Capillary Tube Thin Wall Stainless Steel Pipe
A stainless steel capillary tube is a small-diameter, thin-walled tube made from stainless steel, typically used in various precise and specialized applications. These tubes are known for their small outer diameters and very narrow inner diameters. They are often used in situations where high precision and control over fluid or gas flow are essential.
Model
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Stainless Steel Capillary Tubes / Pipes
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Standard
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ASTM, ASME, EN, JIS, DIN, GB/T etc
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Material Grade
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304 (0Cr18Ni9)
304L (00Cr18Ni10)
316 (0Cr17Ni12Mo2)
316L (0Cr17Ni14Mo2)
321, 409, 409L, 430
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Diameter
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a) Outer Diameter: 0.1mm - 80.mm
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b) Wall Thickness: 0.05mm - 2.0mm
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c) Length: ≤ 500mm Or in coil
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Tolerance
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a) Outer Diameter: +/- 0.01mm
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b) Thickness: +/- 0.01mm
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c) Length: +/- 0.1mm
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Surface Treatment
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Polishing, Annealing, Mirro surface, Bright, Pickling
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Type
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Welded, Seamless
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Shape
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Round, Square, Irregular
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Application
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Medical treatment, petroleum, aerospace, medical equipment, air conditioning, chemical industry, electronics, accessories, food machinery, power generation, pharmaceutical and other fields.
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Packaging
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In bundles with waterproof material, in wooden cases
Please send details packing to us if you have other requirements
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Here are some key points about stainless steel capillary tubes:
1. Material: Stainless steel is the preferred material for capillary tubes due to its corrosion resistance, durability, and ability to withstand high and low temperatures. Common stainless steel grades used include 304, 316, and 316L.
2. Small Diameter: Capillary tubes have very small outer and inner diameters. The inner diameter can range from less than 0.1 mm to a few millimeters, depending on the specific application.
3. Thin-Walled: These tubes typically have thin walls, allowing for precise control of fluid or gas flow. The thin walls also make them flexible and suitable for applications where flexibility is required.
Manufacturing Technique

Stainless steel welded pipe production process:
Raw material - silting - welding pipe - trimming - polishing - inspection (spray printing) - packaging - shipping (warehouse) (decorative welded pipe). Raw material - Slitting - Welding pipe Heat treatment - Correction - Straightening - End trimming - Pickling - Water pressure test - Inspection (printing) - Packaging - Shipping (warehouse) (Pipe for industrial piping of welded pipe).
Processing Services
Support for processing special-shaped capillaries.
Processing range: precision tube cutting, chamfering, tube expansion,tube shrinkage, side hole, sealing (round or flat), coil, thread, bending,etc.
