Cold-drawn or cold-rolled precision seamless tubes (gb3639-2000) are precision cold-drawn or cold-rolled seamless tubes used for mechanical structures and hydraulic equipment with high dimensional accuracy and good surface finish.Precision cold-drawn steel tube is a new type of high technology and energy saving product., application of high precision cold drawn precision steel tube to save steel, improve processing efficiency, energy saving and high precision cold drawn pipe is so-called refers to the inner and outer diameter size accuracy (tolerances) strictly, both inside and outside surface roughness, roundness,
straight degree good, uniform wall thickness the essence of the technology of high precision cold drawn pipe production by the main technical indicators have reached or part of a national standard GB8713 -- more than 88 international standard ISO4394 / I - 1980 (E).For details, please refer to the following table: the main technical indicators and standard comparison table actually
meet the requirements of gb8713-88 ISO4394/I inner diameter dimensional tolerance H8 H9 H10 H8 H10 H10 H9 H9 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 H10 straightness 0.3/1000 A: 0.5/1000 B: 1/1000 C: 1.5/1000 wall thickness %10 wall thickness %5 wall thickness deviation roundness 0.04 no provisions.
Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.
has more than ten years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.
We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel coiled pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.
Edit by Ms. Vicky of CSPG
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