Capillary Tube & Encapsulated Tube
Capillary Tube & Encapsulated Tube
Tubeplus’ Capillary Tubes offer precision manufacturing and superior corrosion resistance for chemical injection, pressure sensing, and hydraulic control. Encapsulated Tubes add a protective polymer layer for enhanced durability in deep wells and extreme conditions.
With rigorous quality control and global supply capabilities, Tubeplus ensures reliable performance, improving well safety and operational efficiency, making it a trusted fluid transport solution for the oil and gas industry.

Specifications Of Capillary Tube & Encapsulated Tube
Standard
ASTM A269
ASTM A249
ASTM A789
ASTM B704
ASTM B705
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Materials
Austenitic Stainless Steel: 304/L, 316/L, 316Ti
Duplex Stainless Steel: 2205/S32205, 2507/S32750
Nickel Alloy: Alloy 625, Alloy 825
…
Specifications
Outer Diameter:
Welded: 3.18mm – 88.9mm
Seamless: 6.35mm – 25.4mm
Wall Thickness:
Welded: 0.4mm – 3mm
Seamless: 0.89mm – 3mm
Length:
Welded: ≤10,000m/coil
Seamless: 120kgs/coil
…

Specifications Of Seamless Tube & Pipe
Standard
ASTM-A312
ASTM-A790
ASTM-B167/163
ASTM-B444
ASTM-B622
ASTM-B423
EN10216
GOST
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Materials
Austenitic: 300 Series…
Duplex Steel: S31803/ S32750…
Nickel Alloy: 600/ 800/c Series…
Cobalt Alloy: Alloy 188/ L-605/ 6B…
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Specifications
Outer Diameter:8mm-711mm
Wall Thickness:1mm-50mm
Length:≤20m
…
