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DIN2391 Precision BKS Cold Rolled Honed Tube Steel Price
Feb 04, 2017

1.Product name:  DIN2391 Precision BKS Cold Rolled Honed Tube Steel Price

2.Outer diameter: 30-250mm

3.Thickness: 2-30mm

4.ID tolerance: H8  H9 or as client's request

5.Package: standard package with plastic bags or wooden cartons or as client's     request

6.Delivery time: within 20-30 days after receiving payment or as client's request

7.Trade term: FOB Yantai, Qingdao or as client's request

8.Payment term: T/T or L/C or as client's request

9.Application: hydraulic cylinder for heavy machine,printing machine, engineering machine, excavator, textile machine, oil drilling and other field

10.Origin: China

Products of carbon tube


1.Seamless steel pipe and carbon steel tube

Widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 E355 and AISI 1020. We can also offer as customized seamless steel tube.

2.cold drawn steel pipe/cold rolled steel tube

Grade: 20#  45#  16Mn  25Mn Q345 27SiMn  E355  ST52 STKM11A STKM13A STKM13C

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. Honed steel pipe&SRB steel tube

ID Tolerance: H8  H9 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 inside tube more smooth which can be used for cylinder directly.

4.Hydraulic cylinder steel tube