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Din En Standard E235 E355 Precision Steel Pipe Cold Drawn Carbon Steel Pipe

Outside diameter 5 ~ 200mm.     Length:12M, 6m, 6.4M

Thickness :2.5 ~ 12mm.      Thickness:2 – 120 mm

Specifications:Φ4×0.5 Φ26×1.8 Φ35×10 Φ48×7.0 ect.

Special Pipe:API Pipe, EMT Pipe, Thick Wall Pipe

Standard:AiSi, DIN EN GB3639-83

Certificate:API, JIS        Grade:carbon steel pipe

Material:10#, 20#, 35#, 45#, 20Cr, 40Cr, 42CrMo, GCr15, 16Mn(Q345B), St35, Ck45, St52, 15CrMoG, 12Cr1MoVG, 20CrMo, 42CrMo, 25Mn, 35CrMo, etc.


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Definition of cold drawn precision steel pipe
Cold-drawn precision steel pipe is a kind of high-precision steel pipe material processed by cold-drawing or hot-rolling. Because there is no oxide layer on the inner and outer walls of the precision steel pipe, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no flaring, no cracks in flattening, etc., it is mainly used for the production of pneumatic or hydraulic
Component products, such as cylinders or cylinders, can be seamless tubes.
Cold drawing process: the cold drawing tube has high precision, compared with the traditional hydraulic cylinder cutting process, it has the following characteristics:High production efficiency: it takes 154 hours to produce a cylinder with an inner diameter of 420 mm and a diameter of 12 meters by the traditional method, and it only takes 4 minutes by the cold drawing process.High processing rate: due to the boring head also has a guiding effect, in the process of processing, due to the blank tube weight caused by deformation, resulting in the boring head and boring cutter offset, resulting in waste.Products processed by cold drawing method, the rate of good can only reach about 60%, with the traditional boring method of processing cylinder block, metal utilization rate is only 50%-70%.Using tensile production, metal is not only not cut into iron filings, but can obtain 30% extension, metal utilization rate up to 95%.
advantage:
1. The outer diameter is smaller.
2. High precision and small batch production
3. The cold drawn finished product has high precision and good surface quality.
4. The cross-sectional area of the steel pipe is more complicated.
5. The steel pipe has better performance and the metal is denser

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