bright annealed Cold seamless carbon steel tube st37.4

Yantai Xinpeng Steel Pipe Co,.Ltd. is one of the best suppliers of the precision tube and hydraulic cylinder tube in North of China.Our company mainly produces various 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.

Xinpeng Have passed ISO9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.

Commodity:

Michanical Performance:

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:

Our Advantage:

1. High quality seamless steel tube with competitive price. 
2. Wide excellent experiences with after-sale service. 

3. Samples can be provided as your requirements. 
4. Professional packing teams which keep every packing safety. 
5. Every process will be checked by responsible QC which insures every product's quality.
6. Every process can be produced as to our clients' requirements.

7. Any questions can be answered in time after you told us.

8. Quick respond to your inquiry.