Precision Cold Drawn Tube

Cold Drawn Seamless Tube (CDS Tube) is widely used as mechanical tubing in various industries.  Seamless cold drawn tube is manufactured from alloy steel and carbon steels for structural or other mechanical purpose including machining or heat treating, in which close tolerances, smooth finish, or certain physical properties are important factors.

PRODUCT PROCESSING: RAW MATERIALS- COLD DRAWN/ROLLED- HEAT TREATMENT (BKS)- HONED – PACKING.

Below is the chemical composition & mechanical properties of the main steel grades for precision cold drawn seamless tubes.

CHEMICAL COMPOSITION(%)MECHANICAL PROPERTIES

• Superior surface finish
• High yield strength
• Dimensional accuracy and excellent micro-structure uniformity
• Enhanced machinability
• High strength to weight ratio
• Tight tolerances, resulting in reduced machine time
• Possible spiraling eccentricity inherent in product
• Flexible order quantity: we accept small quantity orders, even if there is only one piece of hydraulic cylinder tubing we can produce and supply.
• Good weld ability: The weld ability of our honed steel tubing is very good, this is quite helpful for manufacturing the cylinders.

1.Extensive production experience: more than 20 years manufacturing experience for honed tube and chrome plated rod, in Australia, Peru, Chile, Thailand, Singapore,Columbia,Canada, Mexico,US,Saudi Arabia,Brazil, India, Iran, Indonesia and other countries have long-term buyers.

2.Advanced production equipment: cold drawing machine, honing machine, skiving & roller burnishing machine, straightening machine, polishing machine, heat treatment furnace, grinding machine, etc. We have professional technicians do regular scheduled maintenance on these machines to guarantee them work well.

3.High quality raw material: our raw material mainly from some famous steel mills, such as TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.

4.High precision: Honed Tube, inside surface roughness 02-0.4 um, straightness max 0.5/1000, strict tolerance DIN2391 H8. Skived & Roller Burnished Tube, inside surface roughness under 0.2 um, straightness max 0.2/1000, strict tolerance DIN2391 H8. Chrome Plated Rod, chrome layer 10 micron to 100 micron, strict tolerance ISO f7.

5.Strict quality control: we have professional in-house QC to inspect all products. We will do Chemical Composition Test, Mechanical Property Test, Dimension Inspect, Roughness Test, Chrome Layer Test and other tests in need before delivery.

6.Safe packing: an-rust oil on tubes and rods before delivery. Plastic caps on both ends to protect tube inside surface. Then be packed with seaworthy package or in wooden case.