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GB/T18704 Q195 Q235 12Cr18Ni9 Stainless Steel Clad Pipes OD 12.7mm - 325mm

Categories Precision Seamless Steel Tubes
Brand Name: Torich
Model Number: GB/T18704
Certification: ISO9001 TS16949 ISO14001
Place of Origin: China
MOQ: 5tons
Price: 900-3000USD
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 50000tons per year
Delivery Time: 5-8weeks
Packaging Details: In bundles
Material: Carbon steel+Stianless steel
Size: 12.7mm - 325mm
Length: 0-12m
Characteristic: Clad Pipes
End Protector: Plain
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    GB/T18704 Q195 Q235 12Cr18Ni9 Stainless Steel Clad Pipes OD 12.7mm - 325mm

    Product Name:TORICH GB/T18704 Q195 Q235 12Cr18Ni9 Stainless Steel Clad Pipes for Structural Purposes
    Standard: GB/T18704
    OD: 12.7 - 325 mm
    WT: 0.8 - 12 mm
    Length: 1-8m or according to customers' actual application and production.
    Application:public facilities. Vehicle and ship manufacturing. Road guardrail. Furniture. Medical apparatus and instruments
    Steel Grade:Q195 Q235 06Cr19Ni10 12Cr18Ni9 12Cr18Mn9Ni5N 12Cr17Mn6Ni5N
    Technology: Continuous welding molding

    Tolerance of OD

    Surface delivery conditionNominal outside diameterTolerance
    Polishing,Polish
    (SB,SP)
    ≤25±0.25
    >25~40±0.30
    >40~50±0.35
    >50~60±0.40
    >60~70±0.50
    >70~80±0.60
    >80±1%D
    Unpolished,Sand blasting(SNB,SS)≤25±0.30
    >25~50±0.40
    >50±1.0%D


    Tolerance of WT

    Wall thickness(S)Tolerance(high-grade)Tolerance(medium grade)
    ≥0.8~2.0±0.10±0.20
    >2.0~3.0±0.15±0.30
    >3.0±5%S±10%S


    Chemical composition

    No.Unified digital codeNew steel gradeOld steel gradeChemical composition
    CSiMnPSNiCrN
    1S3535012Cr17Mn6Ni5N1Cr17Mn6Ni5N≤0.15≤1.005.50~7.50≤0.050≤0.0303.50~5.5016.00~18.000.05~0.25
    2S3545012Cr18Mn9Ni5N1Cr18Mn8Ni5N≤0.15≤1.007.50~10.0≤0.050≤0.0304.00~6.0017.00~19.000.05~0.25
    3S3021012Cr18Ni91Cr18Ni9≤0.15≤1.00≤2.00≤0.045≤0.0308.00~10.0017.00~19.00≤0.10
    4S3040806Cr19Ni100Cr18Ni9≤0.08≤1.00≤2.00≤0.045≤0.0308.00~11.0018.00~20.00-


    Mechanical property

    No.Unified digital codeNew steel gradeOld steel gradeYield strength
    Rp0.2/MPa
    Tensile
    Strength
    Rm/MPa
    Elongation A/
    1S3535012Cr17MnNi5N1Cr17Mn6Ni5N24552025
    2S3545012Cr18Mn9Ni5N1Cr18Mn8Ni5N245520
    3S3021012Cr18Ni91Cr18Ni921052030
    4S3040806Cr19Ni100Cr18Ni9210520

    QUALITY CONTROL

    1~ Incoming Raw Material Inspection
    2~ Raw Material Segregation to avoid steel grade mix-up
    3~ Heating and Hammering End for Cold Drawing
    4~ Cold Drawing and Cold Rolling, on line inspection
    5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
    6~ Straightening-Cutting to specified length-Finished Measuring Inspection
    7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
    8~ Packing and Stocking.

    100% of our steel tubes are dimensionally checked
    100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
    100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.


    GB/T18704 Q195 Q235 12Cr18Ni9 Stainless Steel Clad Pipes OD 12.7mm - 325mm GB/T18704 Q195 Q235 12Cr18Ni9 Stainless Steel Clad Pipes OD 12.7mm - 325mm
    GB/T18704 Q195 Q235 12Cr18Ni9 Stainless Steel Clad Pipes OD 12.7mm - 325mm

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