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H8 H9 Honed Tube for Hydraulic Cylinder
H8 H9 Honed Tube for Hydraulic Cylinder
Specifications
Place of Origin :
CN
Brand Name :
ZGL
Certification :
ISO9001:2001
Model Number :
smls
Description

Hydraulic Cylinder Honed Tube/Honed Tube/Burnished Tube
hydraulic cylinder honed tubes Grade: ST 52,ST52.3,CK45,E355,16Mn,STKM13C,SAE1020,SAE1026,SAE1045

Metric size: 40 to 1000mm

Inch size: 1.5" to 20"

Length: max 12 Meter

Straightness: < 0.5 mm/m
Tolerance OD: DIN 2391

Tolerance INT: ISO H7, H8, H9

Roughness(Ra): < 0.8 Micron

Type: BK+S,high precision cold drawn,seamless honed,burnished

HONED TUBES FOR HYDRAULIC & PNEUMATIC CYLINDERS

1. MATERIAL SPECIFICATION AND REF. DOCUMENT

ST52,BK+S,DIN2391 OR Equivalent

2. CHEMICAL COMPOSITION (%)

C (Max) Mn(Max) Si(Max) S(Max) P(Max)

0.22 1.6 0.5 0.035 0.035

3. MECHANICAL PROPERTIES

Elongation(Min) Y.S (Min.) UTS (Min.)

≥15 470 N/MM2 580 N/MM2

4. SUPPLY CONDITION

Cold drawn seamless steel tube, stress relieved and honed or skived roller burnished

5. SURFACE ROUGHNESS

Ra = 0.4~0.8Micron

6. TOLERANCES ON INNER DIA

ISO H8

7.TOLERANCES ON WALL THICKNESS

≤ Dia120 +/-10 % of wall thickness

≥ Dia120 +/-10 % of wall thickness

8. STRAIGHTNESS

≤1 mm/M

9. OD TOLERANCE

≤ Dia 40 +/-0.2 mm

≥ Dia 40 ≤ Dia 100 +/-0.3mm

≥ Dia 100 +/-0.5mm

10. LENGTH AND CUT TOLERANCE

Length ≤ 500mm , +2mm

> 500mm ≤ 2000mm, +3mm

> 2000mm ≤ 5000mm, +5mm

> 2000mm ≤ 7000mm, +10mm

11. TUBE ENDS

Tube ends shall be cut nominally square to the axis and free from burs

12. APPEARANCE

Tube shall have a smooth internal and external surface consistent with cold working

process, tube inner surface should be free from rust, scratches and other surface

irregularities.

13. CERTIFICATION

Material certificates will be send to u if want.

14. PACKING

Anti rust oil to be applied on material and both ends closed by plastic cap and

bundled by steel strips,braiding parcel.

15. SCOPE

Hydraulic cylinder tube for swivel crane, injection machine and construction

machine application

Processing

Cylinder diameter

Length /mm

Straightness

Size accuracy

Wall thickness/mm

Inner bore

roughness

Cold-drawn

ID30~OD250

≤13M

0.3~1.0mm/m

H9-H11

±8%

0.8~1.6um

Honed tube

ID50~OD325

≤10M

0.3~1.0mm/m

H7-H9

±8%

0.4~0.8um

Mechanics performance

Material

Tensile

strength

Yield

strength

Elongation

Hardness

Ck20

510 σ N/mm2

500σsN/mm2

5δs%

175HB

Ck45

660 σN/mm2

630σsN/ mm2

4δs%

207HB

ST52

580σ N/mm2

420σsN/ mm2

10δs%

190HB

27SiMn

840σ N/mm2

805σsN/ mm2

7.5δs%

230HB

Product tags

honed tube for hydraulic cylinder

,

hydraulic cylinder honed tube

,

honed hydraulic cylinder
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H8 H9 Honed Tube for Hydraulic Cylinder

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Product Detail
Place of Origin :
CN
Brand Name :
ZGL
Certification :
ISO9001:2001
Model Number :
smls
Contact Supplier
H8 H9 Honed Tube for Hydraulic Cylinder

Shandong Liaocheng ZGL Metal Products Co., Ltd.

Verified Supplier
14 Years
Shandong, Liaocheng
Since 2008
Business Type :
Manufacturer
Main Products :
API seamless steel pipe, Big Size Honed Tube, DIN seamless steel pipe
Total Annual :
1000000-1500000
Employee Number :
500-600
Certification Level :
Verified Supplier
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