CK45 Hydraulic Cylinder ST52 Honed Steel Tube

--In 1992,Yantai Xinpeng steel pipe established.

--In 2000,Xinpeng is equipped with JLB250T cold drawn machine set, LD120 precision cold rolled machine set,         straightening machine, box heat treat furnaces(8000-10000mm)

--In October 2002, Shandong Penghui Hydraulic Cylinder Co,. LTD. Was established.

--In 2012, Xinpeng have equipped the CNC Skive and roller burnished machine set (6000mm)

--In 2013, Xinpeng equipped several powerful honing machines. Combined cold drawn , cold rolling, heat treatment and SRB and honing process together to product the best quality products. 

What we can provide are seamless pipe, hot rolled pipe, cold rolled pipe, cold drawn pipe, honed pipe, hydraulic cylinder pipe, and so on.

Also called cold finished tube, cold drawn tube, cold rolled tube, honed tube, SRB tube, hydraulic barrel, etc.

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 AISI 1020. We can also offer as customized seamless steel tube.

2.cold drawn steel tube/cold rolled steel tube

Grade: 20#  45#  16Mn  25Mn  27SiMn  E355  ST52 STKM11A STKM13A

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. 

Before cold drawn or cold rolled, we also have pre treatment, such as pickling and phosphating, which can take off the rust on the surface.

 3. Honed steel tube&SRB steel pipe, honed 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.

 By our effers, Xinpeng steel pipe enjoy the high reputation all over the world.

widely used in hydraulic system with precision steel tube, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, roll cage and other field.

1.mainly used for hydraulic cylinder, or hydraulic jack, and hydraulic parts

If used for hydraulic cylinder pipe, supply condition usually are: cold drawn pipe(need to SRB or honed in client's side), cold rolled pipe((need to SRB or honed in client's side), honed pipe, hydraulic cylinder pipe.

2.roll cage and other engineering parts

(1)Manufacturer

1. What is your terms of delivery?
We accept FOB Yantai, Qingdao or as client’s request.   

2.What’s your package?

Usually, we have standard package with plastic bags, or wooden cartons or as client’s request.

3.What about your quality?

Strictly followed by ISO9001 system, all our products are in high quality control and tight tolerance.

4.What about the delivery time?

Usually, we will arrange the cargo within 20-30 days after receiving your payment or as client's request as soon as possible because of the stock.

5. Why buy from your company?

We are professional manufacturer and we can offer competitive pricing, fast turnaround times, quick worldwide delivery, excellent procurement capabilities for even the most difficult-to-find parts, and more than 20 years of combined experience.