2. Tubes
   Pressure Tubes 
   Mechanical and Structural Tubes 
   Hydraulic Line Tubing
Stainless Steel and High Alloy Tubing


Pressure Tubes

Type  Uses 
Steel Tubes 
Pressure Service, Low Temperature Service, High Temperature Service, Mechanical Structural Service Square Tubes, Medium-Weight, Heavy-Weight, Machine Structural Purposes, General Engineering Uses
Alloy Steel Tubes Boiler, Heat exchanger
Galvanized Carbon 
Steel Pipes
Water Service

Pressure Tubes are mainly used in Heat Exchangers, Condensers, Boilers and Super Heaters. Pressure Tubes are distinguished from Pressure Pipes in that they are suitable for the application of external heat while conveying pressurized fluids. These tubing's are produced to actual outside diameter and minimum or average wall thickness ( as specified by the purchaser) and may be hot finished or cold finished.

Carbon and Alloy Steel Pressure Tubes
ASTM Specifications Products
A161  Seamless low-carbon or carbon-molybdenum steel still tubes for refinery services
A178  Resistance-welded carbon and carbon-manganese
A179 Seamless cold-drawn low Carbon heat-exchanger or condenser tubes
A192 Seamless Carbon steel boiler tubes for high pressure service
A199 Seamless cold-drawn intermediate alloy steel  heat exchanger or condenser tubes
A200  Seamless intermediate alloy steel still tubes for refinery services
A209 Seamless carbon-molybdenum alloy steel boiler and superheated tubes
A210 Seamless medium-carbon steel boiler and superheated tubes
ASTM Specifications Products
A213 Seamless ferritic and austentic alloy steel boiler, superheated and heat-exchanger tubes
A214 Electric Resistance  Welded Carbon Steel heat-exchanger and condenser tubes
A226 Electric Resistance-Welded Carbon Steel boiler and superheated tubes for high-pressure service
A250 Electric Resistance-welded ferritic alloy steel boiler or super heater tubes
A254 Copper-Brazed Steel tubes for general engineering use as fluid lines
A334 Welded and Seamless Carbon and Alloy Steel Tubes for low-temperature Service
A423  Electric Resistance-Welded or Seamless low Alloy Steel Tubes 
A539 Electric Resistance-Welded Coiled Steel Tubes for gas or fuel oil lines
A556  Seamless Cold-Drawn Carbon Steel Feed Water heater tubes

Capex supplies:

Electric Resistance Welded Carbon Steel Pressure Tubes:
  • ASTM A-178,  A-214, A-226   and A-557
Seamless Carbon Steel Pressure Tubes:
  • ASTM  A-161, A-179, A-192,  A-210, A-334 and A-556

  • DIN2448 and DIN17175


Seamless Alloy Pressure Tubes: 
  • ASTM  A-213, A-334  and A-423 
Austenic or Ferric Seamless and Welded Stainless Steel Pressure Tubes: 
  • ASTM A-213, A-249, A-271, A-498, A-688 
  • (Grades TP-304, 304L, 316, 316L, 321, 317,  317L)
  •   and A-789(Grades TP-2205)
  • Austenic or Ferric, Seamless or Welded Stainless Steel Pressure Pipes: 
    • ASTM A-312, A-358, A-376, A-409, A-790. 
    Non-Ferrous Base Heat Exchanger Tubes: 
    • Cooper: ASTM B-111 C-12200
    • Brass: ASTM B-135 C-26000
    • Admiralty Brass: ASTM B-111 C-44300
    • Aluminum Brass: ASTM B-111 C-68700
    • 90/10 Cooper Nickel: ASTM B-111 C-70600 
    • 70/30 Cooper Nickel: ASTM B-111 C-71500 
    • Nickel Copper, UNS NO 4400, ASTM B-163
    Pressure Tube Sizes:
    Seamless: Outside Diameter:
    Wall Thickness:
    From 0.625"(15.88mm) 
    From 0.06"(1.52mm)
    To OD 5.75"(146mm)
    To 0.3"(7.62mm)
    Welded: Outside Diameter:
    Wall Thickness:
    From 0.75"(19.05mm) 
    From 0.06"(1.52mm)
    To OD 3.5"(88.9mm)
    To 0.3"(7.62mm)
    Cold Drawn: Outside Diameter:
    Wall Thickness:
    From 0.5" (12.7mm) 
    From 0.035" (O.89mm)
    To OD 5.75"(146mm)
    To 0.5"(12.7mm)

    Following Non-Destructive Tests can be performed on pressure tubes, as per International Standards or customers' requirements:
    • Eddy Current
    • Ultrasonic
    • Hydrostatic 
    • Dye Penetrant
    • Air Under Water



    Mechanical and Structural Tubing

    Mechanical and Structural Tubing includes Welded and Seamless tubing used for a wide variety of purposes including:

    Machinery Parts, Structural Parts, Equipment, Home, Office and Automotive Appliances and general structural purposes, such as bridges and buildings.
    Usually it produced to meet specific end-use requirements and therefore comes in many shapes in a variety of chemical compositions and mechanical properties, with hot-rolled or mid finished surfaces.


    Carbon and Alloy Steel Structural and Mechanical Tubing
    ASTM Specifications Products
    Structural Tubing
    A500   Cold-formed welded and seamless carbon steel structural tubing in rounds and shapes
    A501 Hot-formed Welded and seamless carbon steel structural tubing
    A595 Welded Carbon steel tapered Structural tubes
    A618 Hot-formed welded and seamless high-strength, low alloy structural tubing with improved atmospheric  Corrosion resistance
    Mechanical Tubing
    A512 Cold-drawn Butt-Welded carbon steel  mechanical tubing
    A513 Electric-Resistance-welded carbon and alloy steel mechanical tubing
    A519 Seamless carbon and alloy steel













    Capex supplies:

    Seamless or Welded Mechanical or Structural Tubes:

    Mechanical and Structural Tube Sizes:
    Seamless: Outside Diameter:
    Wall Thickness:
    From 0.313"(7.95mm) 
    From 0.049"(1.24mm)
    To 5.00"(127mm)
    To 1.00"(25.4mm)
    Welded: Outside Diameter:
    Wall Thickness:
    From 0.375"(9.53mm) 
    From 0.049"(1.24mm)
    To 5.00"(127mm)
    To 0.5"(12.7mm)

    Hydraulic Line Tubing

    Hydraulic Tubes are mainly used in Earth Moving Machinery, Road and Construction Machinery, Agricultural Equipment, Robotics and Printing Presses.

     Capex supplies:


    Hydraulic Line Tubing:



    Stainless Steel and High Alloy Tubing

    These Tubes are mainly used in very corrosive applications like construction of reactors, desalination units and chemical process equipment.

    Capex supplies:


    Seamless or Welded Tubing and Piping:
    Stainless Steel, Nickel Alloys, Hastelloys


    Titan lure Tube Sizes:

    Other sizes are available on special orders.



    For more information contact us at:   Sales Department

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