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Home > Metallurgy, Mineral & Energy > Steel & Products > Steel Pipe & Tube > Hydraulic Tubes

Hydraulic Tubes

US$ 600 - 800 MOQ: 10 Tons

Key Specifications

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Standard:

Grade:

Thickness:

4, 80

Contact Supplier Request Quote Chat Now

Shandong Liaocheng Yuanhetai Steel Products Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao or Tianjin

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Thickness 4, 80

Section Shape Round

Outer Diameter 27 - 508 mm

Place of Origin Shandong, China

Secondary Or Not Non-secondary

Application Fluid Pipe

Technique Hot Rolled

Certification API

Surface Treatment Other

Special Pipe API Pipe

Alloy Or Not Non-alloy

Specifications

hydraulic tubes
1. ST52 DIN2391 Honed Tube
2. ID30-500mm WT3-40mm
3. BKS
4.Length 5-5.8M

hydraulic tubes

Hydraulic Cylinder Honed Tube/Honed Tube/Burnished Tube

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