APEX offers a wide range of Stainless Steel Pipes & Tubes including welded/seamless straight, U-tubes and coils, welded & seamless pipes, large dia EFW pipes and rectangular and square sections in various finishes and grades. The company is perhaps one of the very few worldwide to offer as wide a product range.
 
 
WELDED PIPES & TUBES
 
APEX is a specialist in manufacturing welded pipes & tubes. With its enviable manufacturing infrastructure, vast experience and depth in understanding of the subject, its capabilities match with the best in business, globally.
Equipments like fully integrated and automatic tube mills (with online annealing, eddy current testing, marking etc.), semi automatic tube mills, solution annealing furnaces, cold-drawing facilities, multiple support machines like straightening, cutting, ends facing, polishing, high capacity pickling & passivation setup, U-bending facility etc. give APEX a consummate versatility that is unparalleled.
  • Welded Pipes & Tubes product Range

    TYPE
    OD WALL
    THICKNESS
    LENGTH SPECIFICATION
    ETC.
    WELDING
    METHOD
    OTHERS
    Pipes ¼" NB
    to
    24" NB
    (13.70 to 609.6mm)
    Sch 5s, 10s,
    20, 40s
    4.5 To 6.1mtrs
    Standard;
    Customers' Specific
    Requirements
    Can Also Be Met.
    ASTM A312,
    A778
    Tig, Plasma Welding
    Used. Circumferential
    Welding May Be Used For
    Double Random Lengths
    (10 To 12 Mtrs)
    In Solution Annealed or
    As welded condition.
    Finish - Pickled.
    Polishing done
    on request.
    Heat Exchanger/
    Condenser Tubes-
    Straight or U-Bent
    5/8" to 2"
    (15.88 to 50.8mm)
    0.5 to 4.0mm Upto 30 Mtrs;
    U Tubes
    As Per Customers'
    Requirements
    ASTM A249,
    A269, DIN
    17455 & 17457
    Tig, Laser
    Welding Used
    In Solution
    Annealed Condition.
    Bright Annealing May
    Also Be Done.
    Finish - Pickled Or BA.
    Polishing Done On Request.
    Small Diameter/
    Instrumentation/
    Heating
    Element Tubing -
    Straight or Coiled
    5/16" to 5/8"
    (8 to 16mm)
    0.5 to 2.11mm Upto 30 Mtrs;
    In Coiled Form
    400 Mtr Lengths
    Possible
    ASTM A269 Tig, Laser
    Welding Used
    In Solution
    Annealed Condition.
    Bright Annealing May
    Also Be Done.
    Finish - Pickled Or BA.
    Polishing Done On Request.
    Automotive Tubes 12 to 51mm 0.5 to 2.11mm As Per Customers'
    Requirements
    Customer
    requirements
    Tig, Laser
    Welding Used
    In As Welded Or
    Solution
    Annealed Condition
    Sanitary Tubes for
    Dairy & Pharma
    ½" to 4"
    (12.7 to 101.6mm)
    0.5 to 3.0mm 4 to 6 mtrs ASTM A270,
    DIN 11850
    Tig, Laser
    Welding Used
    In Solution Annealed Or
    As Welded Condition.
    Bright Annealing May
    Also Be Done.
    Finish - Outside/ Inside
    Polishing Possible.
    Sugar
    Industry Tubes
    1-3/8" to 4"
    (35 to 101.6mm)
    1.0 to 2.11mm Upto 15 mtrs. ASTM A249,
    A269,
    EN 10217-7
    Tig Welding Used In Solution Annealed
    Or
    As Welded Condition.
    Finish Pickled
    Architectural
    Round Tubes
    5/16" to 6"
    (8 to 152.4mm)
    0.5 to 4.0mm 4 To 6 Mtrs Or
    Customer Specified
    ASTM A-554 Tig, Laser
    Welding Used
    In As Welded Condition.
    Finish Pickled.
    Polishing Done
    On Request
    Architectural
    Square &
    Rectangular
    Tubes
    25 x 25 to
    120 x 120mm
    2.0 to 4.0mm 4 To 6 Mtrs Or
    Customer Specified
    ASTM A-554 Tig Welding Used In As Welded
    Condition.
    Finish Pickled.
    Polishing Done
    On Request
These products can be supplied in the following grades:
Austenitic Grades: TP304, 304L, 316, 316L, 316Ti, 317L, 321, 321H, 347, 347H.
Ferritic Grades: TP409,410, 430Ti, 436, 439M, 441, 444
Duplex: UNS 31803, UNS 32205, UNS 32304, LDX2101
 
Manufacturing of welded pipes & tubes is carried out on sophisticated tube mills, where the raw material, i.e. SS Strips, sourced from only the world-renowned sources is fed. The strips are welded into tubes/ pipes using TIG/ Plasma/ Laser welding. Under this process, the edges of the strip are heated and fused together in a protective atmosphere of Argon gas using a non-consumable electrode without the addition of any filler material.
After cutting to size, and depending on the customer requirements, the tubes are then solution-annealed, straightened, cut to final size, pickled, passivated and polished before it is subjected to various tests, marked and released for dispatch.
When tubes are made on fully automatic tube mills, the product is bright annealed, subjected to NDT, size checked, polished if required and stencil marked on line itself.
 
       
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