This news page covers API 5CT casing and tubing in relation to Cold Drawn Seamless Tubing. The content highlights size and dimension requirements, end-use applications. Buyers can use the page to check whether the product, grade, size range, inspection requirements and delivery details match their inquiry.
Cold Drawn Seamless Tubes (CDS)
Diameters and Wall Thickness
OD: 27MM-720MM
WT: 5MM-10MM
Cold Drawn refers to a part in the seamless tube making the process that creates an end-product that is physically superior to its hot finished counterpart. A Hot Finished Seamless(HFS) tube is a rougher look to it as compared to the sleeker and smoother CDS. Putting a tube through the cold drawn process increases its tolerances and strength, however, HFS does have its benefits.
These seamless tubes are used in applications requiring a lot of strength. Cold Drawn Seamless tubes offer tighter tolerances compared to the alternative Hot Finished Seamless tube, and offers stronger physical properties compared to other mechanical tubing. CDS is popular in the hydraulics, being used to make hollowed chrome plated telescopic cylinders and hydraulic rods. It is also popular for large bore, heavy walled, high pressure hydraulic cylinders. Cold Drawn Seamless tubes also find uses in heavy equipment manufacturing such as cranes and garbage trucks.
Mechanical Cold Drawn Seamless Tubes
Mechanical CDS Tubes are usually used in the manufacturing of large and heavy duty equipment like cranes and garbage trucks. Mechanical CDS tubes are up for the difficult jobs because of the tighter tolerances and superior physical properties of the CDS as compared to other mechanical tubing types. Many of the jobs mechanical CDS tubes are used for, require a material with an immense amount of strength.
Benefits of Cold Drawn Seamless Mechanical Tubing:
·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
Hydraulic Cold Drawn Seamless Tubes
This type of CDS used to make hydraulic rods and hollowed telescopic cylinders that are chrome plated. Hydraulic CDS tubes can vary in size, and the heavy walled seamless tubes are popular because of the high pressure the hydraulic cylinders are able to produce.
Hot Finished Seamless Tubes
Though lacking in the strength and tolerance of a CDS, a hot finished seamless tube does have its benefits. With its rougher finish and wider tolerance range, this is the most cost effective option with great machinability and good for processing techniques.
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