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42CrMo4 Shock Absorber Hollow Piston Rod Hard Chrome Plating

    Buy cheap 42CrMo4  Shock Absorber Hollow Piston Rod Hard Chrome Plating from wholesalers
     
    Buy cheap 42CrMo4  Shock Absorber Hollow Piston Rod Hard Chrome Plating from wholesalers
    • Buy cheap 42CrMo4  Shock Absorber Hollow Piston Rod Hard Chrome Plating from wholesalers

    42CrMo4 Shock Absorber Hollow Piston Rod Hard Chrome Plating

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    Brand Name : HY
    Certification : IS09001:2008
    Price : Negotiation
    Supply Ability : 30tons a day
    Delivery Time : 30days
    • Product Details
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    42CrMo4 Shock Absorber Hollow Piston Rod Hard Chrome Plating

    Custom Hollow Shock Absorber Boom Hydraulic Cylinder Pistons Rods

    Name
    Piston Rod
    Diameters
    6-300mm
    Length
    100mm-1200mm
    Steel grade
    DIN CK45 JIS 45C ASTM 1045 SAE 1045 AISI 1045
    Tolerance
    ISO f7
    Chrome thickness
    20μm(min)
    Hardness of the chrome layer
    850HV(min)
    Roughness
    Ra 0.2μm(max)
    Straightness
    0.2/1000mm
    Mechanical Properties(ck45)
    Yield strength≥20Mpa
    Tensile strengh≥80 Mpa
    Elongation≥5%

    Supply condition
    1. Hard chrome plated
    2. Induction hardened
    3. Quenched & Tempered
    4. Induction hardened with Q&T



    Detailed Description
    1.CHEMICAL COMPOSITION

    Material

    C%

    Mn%

    Si%

    S%

    P%

    V%

    Cr%

    Ck45

    0.42-0.50

    0.50-0.80

    0.04

    0.035

    0.035



    ST52

    0.22

    1.6

    0.55

    0.035

    0.04



    20MnV6

    0.16-0.22

    1.30-1.70

    0.10-0.50

    0.035

    0.035

    0.10-0.20


    42CrMo4

    0.38-0.45

    0.60-0.90

    0.15-0.40

    0.03

    0.03


    0.90-1.20

    40Cr

    0.37-0.45

    0.50-0.80

    0.17-0.37




    0.80-1.10


    2.MECHANCIAL PROPERTIES

    Material

    T.S N/MM2

    Y.S N/MM2

    E%(MIN)

    CHARPY

    CONDITION

    CK45

    610

    355

    15

    >41J

    NORMALIZE

    CK45

    800

    630

    20

    >41J

    Q + T

    ST52

    500

    355

    22


    NORMALIZE

    20MnV6

    750

    590

    12

    >40J

    NORMALIZE

    42CrMo4

    980

    850

    14

    >47J

    Q + T

    40Cr

    1000

    800

    10


    Q + T


    3. SUPPLY CONDITION
    Ground and chrome plated
    4. CHROME THICKNESS
    20 to 30 micron
    5. SURFACE ROUGHNESS
    Ra≤0.2 micron and Rt≤2 micro
    6. TOLERANCES ON DIA
    ISO f7 on the diameter
    7.OVALITY
    Half of the tolerance ISO f7
    8. STRAIGHTNESS
    ≤0.2MM/M
    9. SURFACE HARDNESS
    850-1150HV (vickers 100g)
    10.COHESION
    No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling
    in water)
    11 .POROSITY
    Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
    12 CORROSION RESISTANCE
    Test in natural salt spray according to ASTM B 117-72hours
    Results evaluation according to ISO 4540 RATING 7-10
    13. WELDABILITY
    Good
    14. PACKING
    Anti rust oil to be applied on material and each rod to be packed in paper sleeve
    15. CERTIFICATE
    All certificate related with material heat treatment and plating is required


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