non-secondary NBK mild carbon sealmess steel pipe

About our company:

Yantai Xinpeng Steel Pipe Co.,Ltd,located in (APEC)Science&Technology Industrial Park,Zhifu district,Yantai.Established in Dec1992,with registered capital of 5 million Yuan.Our company mainly produces various specifications of cold finished precision steel pipe,which are widely used in hydraulic and pneumatic cylinder for automobile,engineering machinery,textile machinery,printing machinery,oil drilling and other field.

In 2002,our company was equipped one set advanced CNC skived and roller burnished machine SRB-6000mm,several powerful honed machine,combined cold drawn,cold rolling,heat treatment and SRB process to produce the best quality products.our company has passed ISO9001 verified from 2008.

Commodity Description:

Delivery condition:

1.NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again

Product Process:

Application:

Our workshop and products:

Our Certificate:

High Efficiency Service

1.365Days *24Hours phone and email in service.

2.Your inquiry will be replied in 24 hours

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