annealed mild carbon steel pipes

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

Our Certificate:

Company & workshop:

Yantai Xinpeng Steel Pipe Co., Ltd,established in Dec 1992, with registered capital of 5 million Yuan, we have more than 20 years experience in manufacturing and exporting steel pipe. Our company mainly produces various specifications of cold finished precision steel pipe, which are widely used in hydraulic Pneumatic cylinder for automobile, engineering machinery, textile machinery, printing machinery, oil drilling and other field.

Our company are equipped with JLB250T hydraulic cold drawn set,LED120 cold rolling set, annealing surface, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine. Strictly comply with ISO9001 System, assure the best quality of the products.

 Our Service:

1. High Efficiency

1).7 Days *24Hours phone and email in service.

2).Your inquiry will be replied in 24 hours

2. High Quality

1). Well-trained and qualified staff to answer all your questions

2). We are Alibaba VIP golden supplier