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20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube

Jiangsu New Heyi Machinery Co., Ltd
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    Buy cheap 20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube from wholesalers
     
    Buy cheap 20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube from wholesalers
    • Buy cheap 20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube from wholesalers

    20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube

    Ask Lasest Price
    Brand Name : HY
    Certification : ISO9001:2008
    Price : Negotiation
    Payment Terms : L/C, T/T
    Supply Ability : 30tons a day
    Delivery Time : 30days
    • Product Details
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    20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube

    20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube


    Detailed Product Description

    Telescopic Cylinder Tube and Piston Tube

    Our precision seamless tubes are suitable for the manufacture of pistons, telescopic cylinder. We can

    supply hard chrome plating for the telescopic cylinder tube as well, and the technical delivery conditions

    refer to the next page. A comparison of tubular piston rods versus solid piston rods of the same diameter

    based on identical compressive, bending and torsional stresses show that the annular cross section

    permits appreciable weight saving. By cold drawing, the tube piston rods have the decisive advantage of

    more higher mechanical properties than the hot finished piston rods.


    Chemical Composition


    Grade

    C

    Si

    Mn

    P

    S

    Cu

    Ni

    Cr

    Mo

    CK20

    0.17-0.24

    0.17-0.37

    0.35-0.65

    ≤0.035

    ≤0.035

    ≤0.25

    ≤0.30

    ≤0.20

    /

    CK45

    0.42-0.50

    0.17-0.37

    0.35-0.65

    ≤0.035

    ≤0.035

    ≤0.25

    ≤0.30

    ≤0.20

    /

    ST52(16Mn)

    ≤0.20

    ≤0.55

    1.00-1.60

    ≤0.035

    ≤0.035

    ≤0.25

    ≤0.30

    ≤0.20

    /

    42CrMo4

    0.38-0.45

    0.15-0.40

    0.60-0.90

    ≤0.035

    ≤0.035

    /

    /

    0.90-1.20

    ≤0.25


    Mechanical property

    Grade

    Tensile Strength(MPa)

    Yield strength(MPa)

    Elongation %

    Remark

    CK20

    ≥580

    ≥480

    15

    CDS+KS

    CK45

    ≥620

    ≥520

    15

    CDS+KS

    ST52(16Mn)

    ≥580

    ≥520

    16

    CDS+KS

    42CrMo4

    ≥980

    ≥850

    14

    I.H.+Q.T.

    CDS: Cold Drawn Seamless

    BKS: Stress Relieved Annealed

    I.H.+Q.T.: Induction Hardened + Quench and tempered



    Telescopic Cylinder Tube OD Chrome Plated Requirements:

    Chrome Thickness

    20-30 micron

    Surface Roughness

    Ra≤0.2 micron and Rt≤2 micro

    OD Tolerance

    ISO f7 on the diameter

    Ovality

    Half of the tolerance ISO f7

    Straightness

    ≤0.2mm/m

    Surface Hardness

    850-1150HV (vickers)

    Cohesion

    No cracks,breaking or detaching after thermic shock

    (warming up at 300 celius degrees and coolng in water)

    Porosity

    Tested according to ISO 1456/1458 and result according to

    ISO4540 rating 8-10

    Salt Spray Test

    Test in natural salt spray according to ISO 9227/AST M B117 96

    hours and result evaluation according to ISO4540 rating 8-10

    Tolerance on ID

    ID mm

    Values of tolerances are in microns

    H7

    H8

    H9

    H10

    30

    +21

    +33

    +52

    +84

    >30-50

    +25

    +39

    +62

    +100

    >50-80

    +30

    +46

    +74

    +120

    >80-120

    +35

    +54

    +87

    +140

    Quality 20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube for sale
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