Seamless mechanical tubing for machined components, hydraulic cylinders, bearings and structural applications where strength and concentricity matter.
Mechanical tubes are seamless tubes made for machining and engineering rather than fluid pressure. ASTM A519 covers carbon and alloy mechanical tubing, and EN 10297 covers seamless circular tubes for mechanical and general engineering use. They give consistent wall thickness and concentricity, which reduces waste when parts are turned or bored.
Protek Pipes supplies hot finished and cold drawn mechanical tubes for hydraulic cylinders, bearings, shafts, bushings, rollers and structural parts. Send your outside diameter, wall thickness and condition and we will confirm what can be supplied.
Specifications
| Standards | ASTM A519, EN 10297, DIN 2391 |
|---|---|
| Size range | Custom OD and wall (sample range) |
| Type | Seamless |
| Documents | Mill test certificates on request |
Grades available
- ASTM A519 1020 and 1045
- ASTM A519 4130 and 4140
- EN 10297-1 E355 and S355
- Honed and skived tubes (on request)
Typical applications
- Hydraulic cylinders
- Machined parts
- Automotive
- Heavy engineering
Other sizes and wall thicknesses are available on request. Request a quote for mechanical & structural tubes.
FAQ
Mechanical & Structural Tubes FAQs
Cannot find your answer? Our team will help with grade, size and standard selection.
Ask usWhat is the difference between a mechanical tube and a pipe?
Pipes are sized by nominal bore and schedule for carrying fluids, while mechanical tubes are sized by outside diameter and wall thickness for machining and structural use.
Do you supply honed tubes for hydraulic cylinders?
Honed and skived tubing can be sourced on request. Send us the bore size, tolerance and length.
Which conditions are available?
Hot finished, cold drawn, normalised and stress relieved conditions can be discussed based on your application.
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