China manufacturer inner burnished hydraulic cylinder steel pipe

1.Seamless steel tube and carbon steel tube

Widely used in oil,drilling, gas, 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.precision steel tubes

cold drawn steel tube/cold rolled steel pipe

Grade: 20#45#16Mn25Mn Q345 27SiMnE355ST52 STKM13A STKM13C

Standard: GB/T8713GB/T3639DIN2391EN10305ASTMA519

Range: 30-300mm

Length: 11m(max)

The cold process can remove the oxide layer outside to improve surface and offer better mechanical property, also can change ID,OD,WT to meet every client request.

3. Honed steel tube&SRB steel pipe

ID Tolerance: H8H9 or as client's request

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 tube for cylinder using directly.

4.Hydraulic cylinder steel tube  

Hydraulic cylinder tube inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proofing

1. The smaller outer diameter

2. High precision to do small batch production

3. Cold drawn finished products of high precision, good surface quality

4. The steel pipe transverse area is more complex

5. Steel pipe is superior performance, dense metal

Carbon Steel Tube	Cold drawn Tube
Cold Drawn Steel Tube	Honed /SRB Tube

Xinpeng Have 6 workshop Total 

1.  Raw Material warehouse. Good stock situation can assure regular clients' order smoothly. 

2. Pretreatment Workshop. Have included the pickling, Phosphating,Saponificating Process.

    All Approved by Environmental protection of government.

3. Cold drawn/rolled workshop . have equipped with 4sets cold rolled machine, 2 sets cold drawn machine. 

4. Anneal workshop. (included other equipment as straightening machine and so on) 

5. SRB/Honing workshop.

6. polished workshop with finished product warehouse. 

Xinpeng have passed ISO9001:2015 verified.

Better quality System control best quality .

We have our own Labroarty on the mechanical test and UT testing! 

Qualiry Team 15 persons , Target of us is 3000PPM!

1.Transportation: By Sea

20' FCL (means the length than 5,800mm)
40' FCL (means the length than 11,800mm)
2.Bulk cargo (means the quantity is more than 200MT)
3.With regards to other length or quantity, it should be taken by clients themselves
4.Delivery time: 25-35days to the dispatch port after receipt of T/T or L/C at sight.
5.Optional: wooden box; caps; vanished coating.
6.Payment: T/T or L/C at sight, T/T 100% in advance (If order less than 3MT)
7.Price item: FOB, CFR, CNF, C&F, CIF
8.Origin: China
9.Third party inspection: BV, SGS, Lloyds. The Expense needs to stand by clients.

1. 24hours service via phone ,wechat alibaba trade manager. 

2. Good package and best container method.

3. Professional explanation with professional online service

4. Factory manufacturer can assure the best quality. 

5. Good delivery time as 15-30 days .

6. 3 years product assurance after usuage.

7. Good quality process in our own factory,

   each lot tube have their own 5 years'life card.

we always do our best to make deal with any clients, welcome to inquiry at any time!