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35mm - 140mm Chrome Piston Rod Hollow Steel Rod ISO F7 Diameter Tolerance

Categories Chrome Piston Rod
Brand Name: HY
Certification: ISO9001:2008
Place of Origin: China
MOQ: 1 tons
Price: Negotiation
Payment Terms: T/T, L/C
Supply Ability: 30tons a day
Delivery Time: 30days
Packaging Details: Anti rust oil to be applied on material and each rod to be packed in paper sleeve
Material: Micro alloy steel
Product name: Chrome piston rod
Surface condition: Chrome plating
Tensile strength: Not less than 750 MPa
Yield strength: Not less than 520 N/MM2
Diameter tolerance: ISO f7
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    35mm - 140mm Chrome Piston Rod Hollow Steel Rod ISO F7 Diameter Tolerance


    35mm - 140mm Chrome Piston Rod Hollow Steel Rod ISO F7 Diameter Tolerance


    Detailed Product Description


    1. Materialof the goods: CK45, ST52, 20MnV6, 42CrMo4, 40Cr, HY4520, HY4700
    2. Specification length: OD 6mm - 12mm length 1000mm-2000mm

    OD 16mm-35mm length 2000mm-4000mm

    OD 40mm-220mm length 4000mm-8000mm

    OD 250mm-1000mm length 4000mm-8000mm

    3. Tensile strength: Not less than 610 N/MM2

    4. Yield strength: Not less than 355 N/MM2

    5. Advanced inspection apparatus


    Detailed Description


    1. CHEMICAL COMPOSITION(%)


    Material

    C%

    Mn%

    Si%

    S%

    P%

    V%

    Ni

    Cr%

    Mo

    Cu

    ck45

    0.42-0.50

    0.50-0.80

    0.17-0.37

    ≤0.035

    ≤0.035


    ≤0.25

    ≤0.25


    ≤0.25

    ST52

    ≤0.22

    ≤1.6

    ≤0.55

    ≤0.04

    ≤0.04

    0.02-0.15





    20MnV6

    0.17-0.24

    1.30-1.70

    0.10-0.50

    ≤0.035

    0.035

    0.10-0.20

    ≤0.30

    ≤0.30


    ≤0.30

    42CrMo

    0.38-0.45

    0.5-0.8

    0.17-0.37

    ≤0.035

    ≤0.035

    0.07-0.12

    ≤0.03

    0.90-1.20

    0.15-0.25

    ≤0.03

    40Cr

    0.37-0.45

    0.50-0.80

    0.17-0.37

    ≤0.035

    ≤0.035


    ≤0.3

    0.80-1.1


    ≤0.03

    HY4700

    0.38-0.45

    1.20 ~1.60

    0.30~0.50

    ≤0.035

    ≤0.020

    0.05~0.15

    ≤0.25

    0.10~0.20

    ≤0.15

    0.25

    HY4520

    0.40 ~0.48

    0.80 ~1.40

    0.15 ~0.35

    ≤0.035

    ≤0.035

    ≤0.15

    ≤0.25

    ≤0.25

    ≤0.15

    ≤0.25


    2. MECHANICAL PROPERTIES


    Material

    T.S / Rm(MPa)

    Y.S / Rel(MPa)

    A%


    CHARPY


    CONDITION

    ck45

    610

    355

    16

    >41J

    Normalized

    ck45

    800

    540

    20

    >41J

    Q+T

    ST52

    500

    355

    22


    Normalized

    20MnV6

    750

    590

    12

    >40J

    Normalized

    42CrMo4

    980

    850

    14

    >47J

    Q+T

    40Cr

    1000

    800

    10


    Q+T


    3. MICRO ALLOY STEEL

    Material

    MECHANICAL PROPERTIES

    Surface hardness(HBW)

    Rm(MPa)

    Rel(MPa)

    A%

    Z%

    KU2(J)


    HY4700

    Φ35 - Φ100

    900 - 1100

    ≥650

    ≥16

    ≥35

    ≥39

    270-340

    >Φ100 - Φ140

    850 - 950

    ≥600

    ≥16

    ≥35

    ≥39

    270-340

    HY4520

    Φ40 - Φ100

    750 - 900

    ≥520

    ≥19

    ≥40

    ≥39

    230-290

    >Φ100~Φ140

    750 - 900

    ≥520

    ≥17

    ≥35

    ≥39

    230-290










    4. SUPPLY CONDITION

    Ground and chrome plated

    5. CHROME THICKNESS

    20 to 30 micron

    6. SURFACE ROUGHNESS

    Ra≤0.2 micron and Rt≤2 micron

    7. TOLERANCES ON DIA

    ISO f7 on the diameter

    8.OVALITY

    Half of the tolerance ISO f7

    9. STRAIGHTNESS

    ≤0.2MM/M

    10 .SURFACE HARDNESS

    850-1150HV (vickers 100g)

    11. COHESION

    No craks,breaking or detaching after thermic shock(warming up at 300 celsius degrees

    and cooling in water)

    12 .POROSITY

    Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10

    13. CORROSION RESISTANCE

    Test in natural salt spray according to ASTM B 117-120hours

    Results evaluation according to ISO 4540 RATING 7-10

    14. WELDABILITY

    Good

    15. PACKING

    Anti rust oil to be applied on material and each rod to be packed in paper sleeve

    16. CERTIFICATE

    All certificate related with material heat treatment and plating is required


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