Key Specifications/ Special Features:

China Hydraulic Steel PipeST52 / S355JR / E355 Honed Steel Tubing , Precision Steel Tube, Hydraulic Seamless Tube

E-Mail:chinalongyuejixie@126.com

Supply Ability ? 5000 Ton/Tons per Month

Packaging & delivery ?Packaging Details

Standard Seaworthy package or as the customer's requirement.

Port ? Tianjin Port or Qingdao Port

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.

3. SRB&Honed 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.

4.hydraulic cylinder tube, hydraulic tube, cylinder tube