AISI 4130 4140 Cylinder Seamless steel tube and pipe

Productation shows

Cold Rolled tube +BK	cold drawn tube +bk	cold drawn tube+BKS

1. Hydraulic Cylinder Tube------Main products of Xinpeng,

( OD polished ra0.8um, ID Honed/SRB ra0.4um)

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 work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

2. Honed tube ----- used in Elevator buffer and Hydraulic Cylinder .

( ID honed, ra0.2-0.8um OD ra3.2um)

This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.

3. Cold finished tube BKS

( OD ID ra1.6-3.2um) (better Mechanical Property)

---- Widely Used. Processing range 30-300mm, biggest length is 11M.

4.Cold Drawn/Rolled Tube +BK  (without anneal, roughness ra0.8-ra1.6um ) 

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. 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!