We use cold drawn, cold rolling, and honing producing process to get ultra high precision steel pipe, which can be used on manufacturing hydraulic gas cylinder, Pump barrel and other precise products.

OD: 18~400mm

WT: 1.5~40mm

Grade: 10, 20, 35, 45, Q345-B, 16Mn, 37Mn5, 27SiMn, 20Cr, 40Cr and so on.

Standard: as per GB8713, GB3639

 

Advantages of us

 

1. We get the most advanced fully automatic production lines for cold rolling pipes.

2. Bigger production range from OD 18-400mm, we can meet more of your requests.

3. We provide cutting and chamfer service for cold rolling pipes, saving your time and efforts.

4. You do not need to worry after sale service, we are responsible for any claims raised within one year after selling.

 

FAQ

 

1. What is the production process for cold rolling steel pipes?

 

Inspection on billets-peeling- raw materials chemical inspection-heating-piercing-pickling- cold rolling- removing oil- cutting ends- surface and size inspection-marking- packing

 

• How to solve the wall deviation problem of precision steel pipe?

 When the blank pipe is deviated from the wall and the round steel is perforated, the punching head of the round steel is slightly deviated, the staff who come out of the pipe can not check clearly, or the staff makes mistakes in checking, and the staff does not check carefully when cutting off the redundant pipe head.

 

3.Compared with the general seamless pipe, the characteristics of precision steel pipe?

 A. smaller outer diameter. B. high precision and can be used for small batch production. C. the cold-drawn finished product has high precision and good surface quality. D. The cross area of steel pipe is more complicated with internal impurities. E. the better the steel pipe performance, the denser the metal.