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  • JIS G3461 STB340 Carbon Steel Tubes
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  • JIS G3461 STB340 Carbon Steel Tubes for Boiler and Heat Exchanger


    Standard: JIS G3461
    Carbon Steel Tubes for Boiler and Heat Exchanger


     

    JIS G3461 STB 340 specifies the carbon steel tubes, used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc. of the boiler, and heat exchanger tubes, condenser tubes, catalyzer tubes, etc. used in chemical and petroleum industries.


     
    JIS G3461 STB340 Carbon Steel Tubes Quick Details
    Company Name: Beite steel pipe
    Country/Region: China
    Product Name:JIS G3461 STB340 Carbon Steel Tubes 
    FOB Price: US $900-1400 / Ton | 1 Ton/Tons (Min. Order)
    Port of Shipment:Tianjin,China
    Payment:L/C or T/T
    Delivery: 7-15 days after payment
    Package:Standard export package,suit for all kinds of transport, or as required
    Certificate:ISO 9001-2000,PED 97/23/EC,ASME,DNV
     
     
    JIS G3461 STB340 Carbon Steel Tubes Dimensional Range & Specification
    Outside Diameter:15.9mm——127mm
    Wall thickness:3.4mm——12.7mm
    Length:6000mm、12000m or specified length as required.
     


     
     
    JIS G3461 STB340 Carbon Steel Tubes


     
    STB340 is a steel grade of JIS G3461 Standard Specification,This Japanese Industrial Standard specifies the carbon steel tubes
     
    JIS G3461 STB340 Carbon Steel Tubes used for exchanging heat on the inside and outside of the tube, such aswater tubes, smoke tubes, superheater tubes, air preheater tubes, etc. of the boiler, and heat exchanger tubes, condenser tubes, catalyzer tubes, etc. used in chemical and petroleum industries.
     
    However,JIS G3461 STB340 Carbon Steel Tubes are not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.



    Heat Treatment 


    Grade Heat treatment
    Hot finished seamless steel tube
    Cold finished seamless steel tube
    Electric resistance welded steel tube other than hot finished or cold finished steel tube
    Finished electric resistance welded steel tube
    Fold  finished  electric resistance welded steel tube
    STB 340
    As manufactured, as required, low temperature  annealing  or normalizing may be performed.
    Low temperature
    annealing,normalizing or full annealing.
    Normalizing
    As manufactured. However, as required, low temperature  annealing  or normalizing may be performed
    Normalizing

    Note:The cold finished electric resistance welded steel tube which has been normalized prior to cold finishing may be finished by annealing.



    Chemical Composition

    Standard Grade Chemical Composition Limits (%)
    C Si Mn P S
    JIS G3461 STB340 ≤ 0.18 ≤ 0.3 0.30-0.60 ≤ 0.035 ≤ 0.035

    Note:Where required by the purchaser, Si may be designated as 0.10 to 0.35%.



    Mechanical Properties

    Grade Tensile Property (N/mm2) Yield Point or Yield Strength (N/mm2) Elongation (%)
    OD ≥20 mm 10 mm ≤OD <20 mm OD <10 mm
    NO. 11 Sample; NO. 12 Sample NO. 11 Sample NO. 11 Sample
    Longitudinal Transverse Transverse
    STB340 ≥ 340 ≥ 175 ≥ 35 ≥ 30 ≥ 27



    Appearance of JIS G3461 STB340 Carbon Steel Tubes
    (1) The tube shall be practically straight and its both ends shall be at right angles to its axis.
    (2) The inside and outside surfaces of the tube shall be well-finished and free from defects injurious to use. However, in the case of electric resistance welded tube the swelling of inside surface of the weld shall be 0.25mm or less. In this case, if necessary, the purchaser may specify the inside swelling as 0.5mm or less for the tubes 50.8mm or under in outside diameter and at the same time 3.5mm or under in wall thickness.



    Testing:
    Chemical Analysis  , Tensile Test ,  Flattening Test  , Flaring Test  , Reverse flattening Test  ,Hydrostatic Test or Nondestructive Examination.
     


    W=0.02466 t (D-t)
    Where
    W: unit mass of tube (Kg/m)
    t: wall thickness of tube (mm)
    D: outside diameter of tube (mm)


    Packaging and transportation of JIS G3461 STB340 Carbon Steel Tubes

     






    Delivery Of JIS G3461 STB340 Carbon Steel Tubes





    JIS G3461 STB340 Equivalent steel grade

    JIS G3461 ASTM ASME BS DIN ISO ABS NK LRS DNV
    STB 340 A178 SA178 A 3059-P1 320 17175 st 35.8   ABS D KSTB 33 Sec 6 320 Sec 4-E-TS360



    We can customize and innovate the JIS G3461 STB340 Carbon Steel Tubes with advanced technology. Our all JIS G3461 STB340 Carbon Steel Tubes are tested in accordance to internationally recognized standards or our own more stringent internal test procedures, which is developed considering the harsh field conditions. Tension test, flattening test, flaring test, hardness test, hydrostatic or nondestructive electric test be made on  specimens. 



    Contact:Dirk  

    whatapp: +8615003211561,

    E-mail:jinxiaolong0221@gmail.com ,beitesteelpipe@gmail.com


    Contact:Lucky

    whatapp: +8615003171886

    E-mail:jinxiaolong0221@gmail.com ,beitesteelpipe@gmail.com


     

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