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  • JIS G3461 STB410 Boiler and Heat Exchanger Tubes
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  • JIS G3461 STB410 Boiler and Heat Exchanger Tubes
     
     
    JIS G3461 STB410 Carbon Steel Tubes for Boiler and Heat Exchanger Quick Details
    Company Name: Beite steel pipe
    Country/Region: China
    FOB Price: US $1300-1800 / 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
     
     
     
    JIS G3461 STB410 Boiler and Heat Exchanger Tubes Dimensional Range & Specification
    Outside Diameter:12.9mm——127mm
    Wall thickness:3.4mm——12.7mm
    Length:6000mm、12000m or specified length as required.
     
     
     
    JIS G3461 STB410 Carbon Steel Tubes for Boiler and Heat Exchanger
     
    JIS G3461 STB410 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 STB410  Carbon Steel Tubes are not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.



    Heat Treatment Of JIS G3461 STB410
     
    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
    STB410
    As  manufactured.  However,  as required, low temperature annealing or normalizing may be performed.
    Low  temperature
    annealing, normalizing
    or full annealing.
    Normalizing  Low temperature annealing 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 Of JIS G3461 STB410
     
    Standard Grade Chemical Composition Limits (%)
    C Si Mn P S
    JIS G3461 STB410 ≤ 0.32 ≤ 0.35 0.30-0.80 ≤ 0.035 ≤ 0.035

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


     
     
    Mechanical Properties Of JIS G3461 STB410

    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
    STB410 ≥ 410 ≥ 255 ≥ 25 ≥ 20 ≥ 17

    Note:
    1. The above table is only applicable for heat exchanger carbon steel tubes. The buyer can appoint the upper limit value of tensile strength. The upper limit value of tensile strength is the above shown value plus 120 N/mm2.
    2. For the carbon steel pipes with the thickness of less than 8 mm, we use NO.12 sample for tensile test. The minimum elongation will be reduced by 1.5% from the table value when the thickness reduces 1 mm. The value ​​obtained will be rounded to an integer value according to JIS Z8401 (a rounding method).


    Dimensional Tolerances Of JIS G3461
     
    (1) The tolerances on the outside diameter,Unit: mm
     
    Division of outside diameter Tolerances on outside diamete
     Hot finished seamless steel tube
    Cold finished seamless steel tube
    Electric resistance welded steel tube other than cold finished
    Cold  finished  electric resistance welded steel tube
    Under 25 +0.4

    -0.8
    【0.10 【1.5  【0.10
    25 or over to and excl. 40 【0.15 【0.20  【0.15
    40or over to and excl. 50 【0.20  【0.25  【0.20
    50 or over to and excl 60 【0.25 【0.30  【0.25
    60 or over to and excl. 80 【0.30 【0.40 【0.30
    80 or over to and excl. 100 【0.40 +0.40 【0.40
    -0.60
    100 or over to and excl.12 +0.4

    -1.2
    +0.40
    -0.60
    +0.40
    -0.80
    +0.40
    -0.60
    120 or over to and excl.160 +0.40
    -0.80
    +0.40
    -1.00
    +0.40
    -0.80
    160 or over to and excl.200 +0.4 +0.40 +0.40 +0.40
    -1.8 -1.20 -1.20 -1.20
    200 or over +0.4 +0.40 +0.40 +0.40
    -2.4 -1.60 -1.60 -1.60

     
    Note
    To the tolerances on the outside diameter of the electric resistance welded steel tube other than cold finished, the tolerances for the cold finished steel tube may be applied, as required by the purchaser.
     
     
    (2) The Tolerances on the wall thickness and on the thickness disparity 

    Tolerances
    Division of wall
    thickness (mm)
    Division of method of manufacture Hot finished seamless steel tube Cold finished seamless steel tube Electric resistance welded steel tube
    Division of outside diameter (mm) Under 100  100 or over  Under 40  40 or over  Under 40 40 or over
    Tolerances on wall thickness %
    Under 2 --- --- +0.4mm +22



    0
    +0.3 +18



    0
    0 0
    2 or over to and excl. 2.4 +40 --- +20



    0
    +18



    0
    0
    2.4 or over to or excl. 3.8 +35 +35
    0 0
    3.8 or over to or excl. 4.6 +33 +33
    0 0
    4.6 or over +28 +28
    0 0
    Tolerances  on
    thickness disparity %
    --- Within 22.8 of wall thickness --- ---
     
    Note
    The term "thickness disparity" means the ratio of the difference between the maximum and the minimum of the measured wall thickness in the same section to the ordered wall thickness and this is not applicable to the tube under 5.6mm in wall thickness.







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


     
    Marking
    Each tube having passed the inspection shall be marked with the following items. However, the order of arranging the items is not specified. Further, in the case of either smaller tubs or request from the purchaser, the tubes may be bundled together and marked for each bundle by a suitable means.
    (1) Class symbol
    (2) Letter symbol indication the manufacturing method ()
    (3) Dimensions
    (4) Manufacturer's name or its abbreviation
    (5) Letter symbol Z indicating the designation of special quality requirements
    Note () Symbols for indicating the manufacturing method shall be as follows. However, - may be replaced by a blank.
    Hot finished seamless steel tube -S –H
    Cold finished seamless steel tube -S –C
    Electric resistance welded steel tube other than Hot finished and cold finished -E –G
    Hot finished electric resistance welded steel tube -E –H
    Cold finished electric resistance welded steel tube -E -C



    Types of Packaging:
    - Bundles (hexagonal)
    - Wooden Boxes
    - Crates (steel/wooden)
    - Special crates for U-Bend tubes with each radius separated
     

     
    Delivery: 7-15 days after payment



    JIS G3461 STB410 Equivalent steel grade:

    JIS G3461 ASTM ASME BS DIN ISO ABS NK LRS DNV
    STB410 A178 C SA178 C 3059-P2 440 17175 st 45.8   ABS F KSTB 42 Sec 6 410 Sec 4-E-TS410-1



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    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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