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).