Sign In | Join Free | My
Search by Category
Home > Steel Pipes >

Cold Drawn Carbon Steel Heat Exchanger Tubes / Welding Round Tubing

Categories Carbon Steel Tubes
Certification: ISO9001, ISO18001, ISO14001, PED 97/23/EC, ISO/TS16949
Place of Origin: China
MOQ: 5 metric tons (according material availability)
Payment Terms: L/C, T/T
Supply Ability: 5000 metric tons per month
Delivery Time: 15-30 days
Packaging Details: Wooden case
Material: carbon steel
type: welded steel tube
tube shape: round
application: petrochemical, heat exchanger, boiler, superheater
process: cold drawn
Price: Negoniation
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    • Product Details
    • Company Profile

    Cold Drawn Carbon Steel Heat Exchanger Tubes / Welding Round Tubing

    Precision steel tubes

    Type: Cold drawn precision seamless carbon steel tube, Cold drawn precision welded carbon steel tube

    Standard: EN10305-1, EN10305-2

    Steel grade: ST37-2, SAE1020

    Application: steering columns for cars and trucks

    Other steel grades and conditions are on request of clients

    The other tubes as per other norms:

    ASTM A-179 / ASME SA-179

    ASTM A-213 / ASME SA-213 (alloy steels)

    ASTM A-192 / ASME SA-192

    ASTM A-209 / ASME SA-209

    ASTM A-210 / ASME SA-210

    ASTM A-268 / ASME SA-268

    ASTM A-333 / ASME SA-333

    ASTM A-334 / ASME SA-334

    ASTM A-335 / ASME SA-335

    ASTM A-519 / ASME SA-519

    ASTM A-556 / ASME SA-556

    Dimensional range:

    OD: Up to 70mm

    WT: Up to 5mm

    Length: Cut-to-length service is available, minimum to 30mm

    Any specific size is to be discussed before offer

    The tube be 100% eddy current tested

    Ultrasonic test is as option

    ID accuracy: H8, H9

    Straightness ≤1mm/1000mm

    Roughness: Ra ≤0.6

    Delivery condition for availability:

    +CCold drawn / hard
    +LCCold drawn / soft
    +SRCold drawn and stress relieved
    +ABright annealed
    +NBright normalized

    The internal and external surface finish of the tubes shall be typical of the manufacturing process and, where applicable, the heat treatment, and it shall be such that any surface imperfections such as ridges, dents or shallow grooves requiring dressing can be identified.

    Any surface imperfections, whose depth cannot be clearly identified, or,

    • It shall be permissible to dress, only by grinding or machining, surface imperfections provided that, after doing so, the dimensions are within the specified tolerances. All dressed areas shall blend smoothly into the contour of the tube.
    • Surface imperfections which encroach on the specified minimum wall thickness shall be considered defects.

    The tubes shall have smooth outer and inner surface. The roughness Ra shall be:

    ≤4 μm on the outer and inner surface of tubes in the delivery conditions +C and +LC.

    ≤4 μm on the outer surface of tubes in the delivery conditions +SR, +A and +N.

    The tubes are tested by means of following norms







    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

    Quality Cold Drawn Carbon Steel Heat Exchanger Tubes / Welding Round Tubing for sale
    Send your message to this supplier
    To: Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd.
    Characters Remaining: (0/3000)
    Inquiry Cart 0