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Help CenterHONED AND BURNISHED TUBE H8
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Specifications
HONED AND BURNISHED TUBE H8Material C20 C45 St52
size range(I.D): 30mm~500mm
ID tolerance: ISO H8
Roughness:H7 H8
DIN2391 precision steel tube honed
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
DIN2391 precision steel tube honed DIN2391 precision steel tube honed
DIN2391 precision steel tube honed DIN2391 precision steel tube honed
DIN2391 precision steel tube honed DIN2391 precision steel tube honed
DIN2391 precision steel tube honed DIN2391 precision steel tube honed
DIN2391 precision steel tube honed DIN2391 precision steel tube honed
Hydraulic Cylinder Honed Tube/Honed Tube/Burnished Tube
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
High precision cold drawn tube(ready to honed tube) can also be supplied
Send Inquiry to This Supplier
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