Products of carbon tube
1.Seamless steel tube and carbon tube
Widely 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 also offer ascustomized seamless steel tube.
2.cold drawn steel pipe/ cold rolled steel tube
Grade: 20# 45# 16Mn 25Mn 27SiMn E355 CK45 STKM11A STKM13A
Standard: GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519
The cold process can improve the mechanical property of the pipes and offer better tolerance.
3. Honed Tube&Hydraulic cylinder steel tube
ID Tolerance: H8 H9
ID Roughness: RA0.4micron(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