Alloy Steel Pipe and Tube

Alloy Steel Pipes and Tubes offer a balance between affordability, strength, and weldability for various applications requiring higher pressure handling compared to standard carbon steel pipes.

The term “NB” refers to Nominal Bore, a designation related to the pipe’s diameter.

Schedules (5S, 10, etc.) specify the pipe wall thickness. Choosing the appropriate schedule depends on the pressure rating requirements of your application.

The form (Seamless, ERW, Welded) refers to the manufacturing method used to create the pipe/tube. Seamless pipes offer the highest strength but are generally more expensive.

Round and Square are the most common shapes available, although other shapes may be obtainable depending on the supplier.

The available grades (P1, P9, etc.) are designated by a “P” followed by a number indicating the minimum yield strength in MPa (or ksi for some imperial units). Higher numbers signify higher strength. Consulting a specialist can help you select the most suitable grade based on factors like:

• • Pressure requirements: The chosen grade and schedule should meet or exceed your pressure needs.
  • Operating temperature: Different alloy steel grades perform well at varying temperatures.
  • Weldability: Certain grades may require specific welding procedures.