Pipe Tube

A pipe is a hollow cylindrical component primarily used to transport fluids and gases in various industries such as oil and gas, chemical processing, and water treatment. Pipes are generally specified by their nominal pipe size (NPS) and schedule, which determine their diameter and wall thickness. Manufactured from materials like carbon steel, stainless steel, and alloy steel, pipes are designed to withstand high pressure and temperature conditions, ensuring safe and efficient fluid transportation.


In contrast, a tube is often defined by its exact outside diameter and wall thickness, making it suitable for structural applications, heat exchangers, and precision equipment. Tubes are widely used in industries such as automotive, aerospace, and construction due to their dimensional accuracy and strength. Both pipes and tubes come in various materials and finishes, and selecting the right one depends on the application requirements including pressure, temperature, and corrosion resistance.



Pipe Tube Specifications


Specification Description
Pipe Size 1/8” to 48” (NPS)
Tube Size 1/8” to 24” (OD)
Material Carbon Steel, Stainless Steel, Alloy Steel, Copper, Aluminum
Wall Thickness Schedule 10, 20, 40, 80, 160, XXS
Material Grades ASTM A106, ASTM A312, ASTM A53, ASTM A335, API 5L
Standards ASME B36.10M (Welded), ASME B36.19M (Seamless), ASTM A500
Finishes Polished, Galvanized, Coated, Beveled
Testing Hydrostatic, Ultrasonic, Visual, PMI (Positive Material Identification)
End Types Beveled, Threaded, Flanged, Plain


Pipe Tube Grades


Material Grade Standard
Stainless Steel 304 / 304L ASTM A312 / A213
Stainless Steel 316 / 316L ASTM A312 / A213
Carbon Steel ASTM A106 Gr. B ASTM A106
Carbon Steel ASTM A53 Gr. B ASTM A53
Alloy Steel ASTM A335 P11 / P22 ASTM A335
Duplex Steel UNS S31803 / S32205 ASTM A790
Nickel Alloy Inconel 600 / 625 ASTM B167


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