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Black Carbon Steel Thick Wall Steel Tube For Heat Exchanger ASTM A214

Categories Heat Exchanger Tubes
Brand Name: HENGLONG
Certification: ISO9001, OHSAS18001, ISO14001, PED97/23/EC
Place of Origin: China
Payment Terms: L/C, T/T
Supply Ability: 6000 metric tons per month
Delivery Time: 20-30 days
Packaging Details: Wooden case
Material: carbon steel
type: welded steel tube
tube shape: Round
application: heat exchanger tube
Price: Negoniation
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    Black Carbon Steel Thick Wall Steel Tube For Heat Exchanger ASTM A214

    ASME SA214 Welded carbon steel heat exchanger tubes


    Standard: ASTM A214 / ASME SA214

    Steel grade: Low carbon steel

    Material shall conform to the applicable requirements of specification A450/A450M

    Carbon, max, %0.18
    Manganese, %0.27-0.63
    Phosphorous, max. %0.035
    Sulfur, max, %0.035

    Process: Welded and cold drawn

    The tubes cover minimum wall thickness.

    Application: tubular heat exchangers, condensers, and other heat transfer apparatus


    Dimensional range:

    OD: 19.05-76.2mm

    Any specific size is to be discussed before offer


    The tube be 100% eddy current tested

    Ultrasonic test is as option

    Straightness ≤1mm/1000mm

    Roughness: Ra ≤0.8


    Heat treatment

    After welding, all tubes shall be heat treated at a temperature not less than 900℃ and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace. Cold drawn tubes shall be heat treated after the final cold drawing pass at a temperature not less than 650℃


    Test

    • The tubes shall have a hardness test, it is not exceeding 72HRB.
    • One flattening test shall be made on specimens from each of two tubes from each lot or fraction thereof.
    • One flaring test shall be made on specimens from each of two tubes from each lot or fraction thereof.
    • One reverse flattening test shall be made on a specimen from each 450m of finished tubing.
    • Brinell or Rockwell hardness tests shall be made on specimens from two tubes from each lot.(when the final heat treatment is in a continuous furnace, a lot shall include all tubes of the same size and heat, heat treated in the same furnace at the same temperature, time at heat, and furnace speed)
    • Each tube shall be subjected to the hydrostatic test or the nondestructive electric test. The client may specify which test is to be used.

    Surface quality

    The finished tubes shall be free of scale. A slight amount of oxidation shall not be considered as scale.


    Mechanical properties

    Tensile strength, min, ksi (MPa)47 (325)
    Yield strength, min, ksi (MPa)26 (180)
    Elongation in 50mm, min, %35

    Tubes shall be delivered with square cut ends. The ends are free of excessive burrs.

    The tubes are bundled in the waterproof plastic sheet and packed in the wooden cases

    The case is most suitable for hanging by forklift.

    EN10204-3.1 MTC shall be issued

    EN10204-3.2 MTC is as option


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