1.Product Name: top material ASTM a53b precision honed polished steel carbon tube

2.Outer Diameter: 30-250mm
3.Wall Thickness: 2-30mm
4.Material Grade: 20# 45# 16Mn 25Mn 27SiMn E355
5.Package: Standard export packing or as client’s request
6.Delivery Condition: BK/BKW/BKS/GBK/NBK
7.Delivery Time: Within 20-30 days after receiving payment or as client’s request
8.Trade Terms: FOB Yantai, Qingdao, or as client’s request
9.Payment Terms: T/T or L/C or as client’s request
10.Supply Ability: 500 metric tons/per month

Our Company

Yantai Xinpeng Steel Pipe Co., Ltd. mainly produces various specifications of cold drawn,rolled precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely used in such industries as hydro-cylinder, automobile, engineering machinery, textile machinery, printing machinery, oil drilling, etc.

Our Main products

1.Seamless steel tube

Widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can also offer ascustomized seamless steel tube.

ld drawn/rolled seamless steel tube

Grade: 20#  45#  16Mn  25Mn  27SiMn  E355  SAE1026

Standard: GB/T8713  GB/T3639  DIN2391  EN10305  ASTMA519

Range: 30-300mm

Length: 11m(max)

The cold process can change the thickness of tube to meet client's request and offer better mechanical property. 

 3. SRB&Honed seamless steel tube

ID Tolerance: H8  H9

ID Roughness: RA0.4micron(max)

Length: 6m(max)

Inner roughness: Ra0.2-0.8um

Straightness: 1:1000 or customized

This process can improve the roughness of the inner tube to 0.2-0.8um and make inside tube more smooth which can be used for cylinder directly.

Our Process

Equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine.

Mechanical property

Chemical composition

Packing&Shipping

Packing:

1.standard export packing with plastic foam and wooden cartons

2.or as client's request

Shipping:

Within 20-30 days after receiving your payment or as client's request

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

Our Certificate

Strictly according to system verified ISO9001:2008, all our products are in high quality control and tight tolerance to satisfy every client without quality problem.

Our Service

 1.High quality products.

Adhere to the verified system ISO9001, we offer various specifications of percision steel tube with 100% quality guarantee.

2.Perfect service

(1)Product with surface protection and also can be arranged as client' s request.

(2)24 hours online reply

(3)treat every client as friend

Xinpeng is a reasonable choice:

1.Professional Export Experienced sales team

Our sales team must pass professional product training and we all have rich export practice experience.

2.Fast delivery and short shipping schedule         

Once deposit reaches, we will arrange the products as soon as possible without delay;

Professional shipping company to arrange the shortest schedule to your destination.

There are many stock in our warehouse.(seamless steel pipe, cold drawn/rolled steel pipe, honed/SRB steel pipe and so on)

If you are interested in our products, pls don’t hesitate to contact us, and we’ll do our best for you !