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  • Honed tube
Honed tube

Honed tube

Honed Tube

Honed tube is a type of high precision steel tube material after process with honing machine and cold drawing machine. Due to the precision honed tubes with advantages of inside and external wall without oxide layer, withstand high pressure without leakage, high precision, high finish, cold bending without deformation, flattening without cracks etc, so they are usually used to produce pneumatic or hydraulic components, such as pneumatic cylinder or Hydraulic Cylinder Bore Tube.


Honed tube, is well known as hydraulic cylinder tube in many industries. As this kind of tubing is usually honed in tube inside diameter, it is known as honed ID tubing, burnished tube also.
The honed tubes suitable for various types of Precision Mechanical Tube, Honed Cylinder Tubing and Hydraulic Cylinder, Steel Axis Pipe, Injection Machine, lifting equipment and Crane Robotic Arm.

Wide applications

construction machinery
metallurgical machinery
plastic machinery
opening and closing machinery
mining machinery
road construction machinery
textile machinery and other industries.

Honed Tubes are ready to use for hydraulic cylinder applications without further ID processing.

Specifications

Inside diameter from 40 to 700 mm, Max length 13 meters.
Straightness: 0.5 /1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H8
Roughness(Ra): 0.2 to 0.4µ
E355+SR (EN 10305-1) / St52-3 BK+S (DIN 2391)

Processing forms:

Cold rolled
Cold drawing
NBK/GBK/BKS treatment
Honing/Skived

Tolerance standards

Different sizes of ready to use honed tube are available.


ID(mm)

TOLERANCE(mm)


H7

H8

H9

H10

≦30

+0.021/0

+0.033/0

+0.052/0

+0.084/0

30 - ≦50

+0.025/0

+0.039/0

+0.062/0

+0.100/0

50 - ≦80

+0.030/0

+0.046/0

+0.074/0

+0.120/0

80 - ≦120

+0.035/0

+0.054/0

+0.087/0

+0.140/0

120 - ≦180

+0.040/0

+0.063/0

+0.100/0

+0.160/0

180 - ≦250

+0.046/0

+0.072/0

+0.115/0

+0.185/0

250 - ≦315

+0.052/0

+0.081/0

+0.130/0

+0.210/0

315 - ≦700

+0.057/0

+0.089/0

+0.140/0

+0.230/0


Seamless hydraulic pipe Quality Standards

Seamless Honed Tubes with a micro-finish and highly accurate in bore size within tolerance H8 or equivalent.
DIN 2391 Seamless Precision Steel Tubes
EN10305 Steel Tubes for Precision Applications Seamless Cold Drawn Tubes
ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing
JIS G3445 Carbon Steel Tubes for Machine Structural Purposes
Grade: ST52, ST52.3, CK45, E355, 16Mn, STKM13C, SAE1020, SAE1026, SAE1045



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