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Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved

Categories Hollow Round Bar
Brand Name: chunfa
Certification: ISO9001:2008
Place of Origin: China
MOQ: 1 ton
Price: Negotiation
Payment Terms: L/C, T/T
Supply Ability: 400ton per month
Delivery Time: 30days
Packaging Details: Anti rust oil to be applied on material and each rod to be packed in paper sleeve
Chrome Thickness: 20-30 micron
Product: Chrome hollow round bar
Corrosion Resistance: High
Elongation: ≥40%
Hard Chrome Thickness: 20 - 30 micron
Ovality: Half of the tolerance ISO f7
Shape: Round
Standard Length: 1000mm - 8000mm
Straightness: Not more than 0.2 MM/M
Surface Treatment: Hard Chrome Plated
Surface Condition: Hard Chrome Plated
Surface Hardness: 850-1150 HV (vickers 100g)
Surface Treatment: Polished
Tensile Strength: ≥520 MPa
Yield Strength: ≥205 MPa
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    Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved

    Precision ST52 Hollow Round Bar Hard Chrome Plated Rod Tempered With ISO9001:2008


    Product Name:Hollow Round BarStandard Length:1000mm - 8000mm
    Diameter:6mm - 1000mmYield Strength:Not Less Than 355 N/MM2
    Straightness:Not More Than 0.2 MM/MSurface Hardness:850-1150 HV (vickers 100g)
    High Light:

    hollow steel tube

    ,

    hollow steel bar


    Precision ST52 Hollow Round Bar Tempered with ISO9001:2008


    Detailed Product Description

    1. Material: CK45, ST52, 20MnV6, 42CrMo4, 40Cr
    2. ISO9001:2008
    3. Complete manufactured equipment
    4. Condition: Chrome plated, Quenched / Tempered, Induction hardened, Q / T Induction hardened
    5. Application: Mining machinery industry, textile / printing industry and so on


    Detailed Description
    1.CHEMICAL COMPOSITION

    MaterialC%Mn%Si%S%P%V%Cr%
    Ck450.42-0.500.50-0.800.040.0350.035
    ST520.221.60.550.0350.04
    20MnV60.16-0.221.30-1.700.10-0.500.0350.0350.10-0.20
    42CrMo40.38-0.450.60-0.900.15-0.400.030.030.90-1.20
    40Cr0.37-0.450.50-0.800.17-0.370.80-1.10


    2.MECHANCIAL PROPERTIES

    MaterialT.S N/MM2Y.S N/MM2E%(MIN)CHARPYCONDITION
    CK4561035515>41JNORMALIZE
    CK4580063020>41JQ + T
    ST5250035522NORMALIZE
    20MnV675059012>40JNORMALIZE
    42CrMo498085014>47JQ + T
    40Cr100080010Q + 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

    We imported one continous chrome plating line from Italy at the beginning of 2016. With this new chrome plating line, we will improve efficiency and product quality a lot.The new chrome plating line is the first one in China and will be the only one in the next five years!

    Quality Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved for sale
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