Honed Tube

Honed tube is well known as hydraulic cylinder tube in many industries. This is because honed tubes are the most important materials of manufacturing hydraulic cylinders. And as this kind of tubing is usually honed in tube inside diameter, it is known as honed ID tubing also.

The honed tubes suitable for various kinds of Precision Mechanical Tube, Honed Cylinder Tubing and Hydraulic Cylinder, Construct use Multi Joint Tube, Steel Axis Pipe, Injection Machine and Robotic Arm.

Honed Tube For Hydraulic Cylinder

Quality Standards

Seamless Honed Tubes (Steel) with a micro-finish and highly accurate in bore size within tolerance H7 or equivalent.

  • DIN 2391 Seamless Precison Steel Tubes
  • EN10305 Steel Tubes for Precision Applications Seamless Cold Drawn Tubes
  • ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
  • JIS G3445 Carbon Steel Tubes for Machine Structural Purposes

Grade: ST 52, ST52.3, CK45, E355, 16Mn, STKM13C, SAE1020, SAE1026, SAE1045

Hard chrome plated tube rod

Hard Chrome Plated Tube Rod has same properties as normal coated rod with the chrome coating on the outer surface. It reduces your system weight 50%-60% due to the hollow design.

 

Size range:

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

  • Inside diameter from 40 to 1000mm, Max length 20 meters.
  • Straightness: 0.5 /1000
  • Tolerance EXT: DIN 2391
  • Tolerance INT: ISO H8
  • Roughness(Ra): 0.2 to 0.4µ

Type:

  • cold drawing
  • normalizing treatment
  • honing.
Tolerance standard:

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

This will provide long piston seal life and prevent failure of the cylinder. The tube material is selected on the basis of application & working pressure.

The seamless tube for hydraulic cylinders, obtained from high quality cold drawn tubes, available in a wide dimensional range.

  • Length: unfixed length or fixed length
  • Package: banding with steel strips, braiding parcel at outside
  • Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.

Related honed tube


Chemical composition(%)

Grade

C

Si

Mn

P

S

Cr

Mo

St 45 (DIN1.0408)

0.21 max

0.35 max

0.40 min

0.025 max

0.025 max

/

/

St 52 (DIN1.0580)

0.22 max

0.55 max

1.60 max

0.025 max

0.025 max

/

/

E355

0.22 max

0.55 max

1.60 max

0.025 max

0.025 max

/

/

1020

0.18-0.25

/

0.30-0.60

0.040 max

0.050 max

/

/

1026

0.22-0.28

/

0.60-0.90

0.040 max

0.050 max

/

/


Mechanical Properties( T=20°C if not differently stated ):

Grades

Delivery Conditions

Tensile Strength Rm (Mpa)

Elongation in the longitudinal direction Al (%)

St 45

+A (GBK)

390 min

21 min

St 52

+A (GBK)

490 min

22 min

E355

+A (GBK)

450 min

22 min

1020

+A (GBK)

390 min

21 min

Product Processing: Raw materials- Cold drawn/rolled- Heat treatment (BKS)- Honed - packing.

Processing Way

Cylinder Barrel ID (mm)

Max Length (mtr)

Straightness (mm/mtr)

ID Tolerance

Wall Thickness Tolerance (mm)

ID Roughness (μm)

Cold Drawn

40-320

12

0.2-0.5

H8-H10

±5%

0.8-1.6

Cold Rolled

12-100

12

0.2-0.5

H8-H10

±5%

0.8-1.2

Cold Drawn+Honed

40-500

8

0.2-0.3

H7-H9

±5%

0.2-0.8

Cold Drawn-SRB

40-400

7

0.2-0.3

H8-H9

± 5%

0.2-0.4

Deepth Drilling-Honed

320-1100

8

0.2-0.3

H7-H9

±8%

0.2-0.8

Deepth Drilling-SRB

320-600

7

0.2-0.3

H8-H9

±8%

0.2-0.4

Impact test: -20℃, 27 J (only for special requirement)

High precision cold drawn tube(ready to honed tube) can also be supplied.

Hydraulic cylinder

A Hydraulic cylinder (also called a linear hydraulic motor) is a echanical actuator that is used to give a unidirectional force through a unidirectional stroke. It has many applications, notably in engineering vehicles.

  • OEM in accordance with client's drawing or requirement.
  • Certificate by CCS, BV, GL, Lloyd’s, DNV, etc.
  • Working Pressure:from 70 bar to 700 bar
Equivalent Standards 
EN 10305-1 Material
No.
DIN 2391 STAS AFNOR BS UNI EN 10025 JIS GOST 19281-89 AISI SAE ASTM
E355 1.0580 St52-3 OL52-3 E36-4 4360-50D Fe510 SM490A 17G1S 1024

E355+SR (EN 10305-1) / St52-3 BK+S (DIN 2391)



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