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Honed Tubes for Hydraulic/ Pneumatic Cylinder

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. This tubing is ready to use for hydraulic cylinder applications without further ID processing.

Grade:

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

Size range

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 0.4u

Type:

cold drawing, normalizing treatment, honing.

Chemical composition(%)

Si(Max)	Mn (Max)	C Max)	P (Max.)	S (Max)
0.55	1.60	0.22	0.025	0.25

Mechanical properties:

Tensile strength Min	Yield Point Min	Elongation % Min
580 N/mm2	420 N/mm2	10

Marking: fsapexsteel, ID, OD

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.

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

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

Tolerance standard:

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