2. Tubes
 

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

 
 

Pressure Tubes

Applications
 

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.

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.

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Carbon and Alloy Steel Structural and Mechanical Tubing

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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:

• ASTM A-500, A-501, A-511, A-512,  A-513,  A-519,  A-554, A-595, A-618 and A-847

 

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:

• NFPA T.3.15.66.1, SAE J-524, SAE J-525

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:

 

• ASTM B-337 and B-338
• ASTM A213, A249, A312
• ALLOYS 200, 201, 400, 600, 800

• Outside Diameter:       From 1/4" (6.35mm)      To 4" (101.6mm)
• Wall Thickness: From 0.712mm (BWG 22) To 3.40mm (BWG 1O)

Other sizes are available on special orders.
 

 

For more information contact us at:   Sales Department