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* This model is one of our top recommendations.
Description
Cold-rolled precision seamless steel pipe (GB3639-2000) is a kind of high-quality seamless steel pipe specially used for precision mechanical structures, hydraulic equipment or steel casing. This kind of steel pipe is characterized by its high dimensional accuracy and good surface finish.
Let's take a look at what is cold-rolled precision seamless steel pipe. Cold-rolled precision seamless steel pipe is a kind of seamless steel pipe made by cold rolling process. In this process, the steel pipe is rolled in a non-oxidizing atmosphere to prevent the surface of the steel pipe from being oxidized, thus maintaining its original performance and quality.
This kind of steel pipe has high dimensional accuracy. This means that whether it is the length, diameter or wall thickness of the steel pipe, it can be accurate to the millimeter level. This high precision size makes this steel pipe ideal for use in precision mechanical structures and hydraulic equipment. In these equipment, the dimensional accuracy of the steel pipe directly affects the operating efficiency and stability of the equipment.
This kind of steel pipe has a good surface finish. This means that the surface of the steel pipe is very smooth, without any defects. This high finish surface can not only improve the beauty of the steel pipe, but also improve the corrosion resistance and wear resistance of the steel pipe. Therefore, this steel pipe is very suitable for the production of steel casing.
Cold-rolled precision seamless steel pipe (GB3639-2000) is a kind of seamless steel pipe with high dimensional accuracy and good surface finish. The excellent properties of this steel pipe make it ideal for use in precision mechanical structures, hydraulic equipment or steel casings.

Parameter
Product Type | Pipe/Tube |
Pipe Process Type | Seamless: Hot rolled, cold drawn, cold rolled, etc. |
Standard | DIN, BS, EN, ISO, GB, AISI, SAE, GOST, IS, KS, ANSI, AFNOR, UNI, CSA, AS/NZS. |
Specification and Grades | Carbon Steel: |
Wall Thickness | 0.1-100MM |
Outside Diameter | 9.53-1016MM(ROUND) |
Length | 6M/12M/According to customer’s requirement |
Application | Firefighting,Water Supply, Construction Industry, Municipal Engineering ,Petrochemical.etc |
Package | Export Seaworthy Package |

Quality advantage
* All products go through strict quality inspections before leaving the factory.
* I’m confident you’ll be satisfied with the sample quality once received.
* We only use 100% brand-new raw materials.
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Zhishang Steel Co., Ltd
Zhishang Steel, specializing in domestic steel products trade, warehousing, processing and other services. The team has four service teams: Shandong Zhishang Steel Co., LTD., Shandong Zhiyiheng Trading Co., LTD., Tai 'an Zhishang Economic and Trade Co., LTD., Shandong Zhishang Steel Structure Co., LTD. Mainly engaged in steel coil, coated, stee···








