CDS Line Tubes are a high-quality seamless cold drawn precision tube purpose-built for hydraulic and pneumatic applications. Manufactured to E235 (ST37.4) grade and normalised to improve suitability for bending, these hydraulic steel tubes offer excellent working pressure capability across a range of wall thicknesses — making them a reliable choice for oil and water conveying lines and general hydraulic system plumbing.
All CDS hydraulic tubes are E235 annealed, cad plated, shot, oiled and capped, and meet International Standards. Externally, each tube carries a chrome-free (CF6) Zinc coating of 8–12 micron, subsequently passivated or chromated, and combined with a temporary corrosion protection inhibitor for resistance against white corrosion.
Stocked in 6000mm lengths and available cut to order, FPD can supply CDS Line Tubes fast from local stock.
Note: Cold Drawn Seamless steel tube is not suitable for load-bearing applications.
Specifications
- Steel grade: E235 (ST37.4)
- Delivery condition: +N (Normalised)
- Outside Diameter (Imperial): 1/4" to 1 1/2"
- Wall thickness: 1mm to 5mm
- Stocked lengths: 6000mm (cut to order available)
- External coating: Chrome-free (CF6) Zinc, 8–12 micron; passivated or chromated
- Factor of Safety: 3:1 (per ASTM A179/A179M)
- Tensile Strength (min): 350MPa
- Yield Strength (min): 235MPa
Hydraulic tubes from stock — cut to order and delivered fast. Contact FPD for sizing and availability.





