Specifications

Cylinder material C20 C45 ST ST52
size range(I.D): 30mm~500mm
ID tolerance: ISO H8
Roughness:0.4 micron
Straightness: 0.8/10

Cold-Drawn Steel Tube of high-precison used hydraulic ram amd pneumatic liner actuator

 

Biggest manufacturer in china.
size range(I.D): 40mm~400mm
ID tolerance: ISO H8
Roughness:0.4 micron
Straightness: 0.8/1000

Biggest  manufacturer for cyliner tube in china.

the size range(I.D): 63mm~250mm

The tolerance of O.D:  According to DIN 2391( EN10305-1) 

I.D: ISO H8.

Roughness:0.4 microns(max), average: less than 0.2 micron

The max length: 9m.

Straightness: 0.8/1000 or better.  

Delivery condition: ST52 BKS, E355 SR.

Certificate: EN10204 3.1

Steel grade: ST 45,ST 52, E355,SAE1026,SAE1045 STKM13C and etc

 

Note :The chinese grade 20# 45# 16Mn 27SIMn

Standard: GB/T8716-88  Gb/T3639-2000  DIN 2391 EN10305