Shandong Liaocheng ZGL Metal Products Co., Ltd.
| Place of Origin | CN |
| Brand Name | ZGL |
| Certification | ISO9001:2001 |
| Model Number | smls |
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Product Specification
| Place of Origin | CN | Brand Name | ZGL |
| Certification | ISO9001:2001 | Model Number | smls |
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 |
Company Details
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
1000000-1500000
Employee Number:
500-600
Ecer Certification：
Verified Supplier
Shandong Liaocheng ZGL Metal Products Co, Ltd. is one of the largest manufacturer for Hydraulic Honed Tube,Seamless Steel Pipe in China.Shandong Liaocheng ZGL Metal Manufac... Shandong Liaocheng ZGL Metal Products Co, Ltd. is one of the largest manufacturer for Hydraulic Honed Tube,Seamless Steel Pipe in China.Shandong Liaocheng ZGL Metal Manufac...
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