Pipe Tools


See below a list of tools to help you with a range of pipe related issues.

Weight Per Metre Calculator For Stainless Steel Pipes

Calculation is O/D – WT x WT x 0.02504

PREN stands for Pitting Resistance Equivalent Number. It is a predictive measurement of a stainless steel’s resistance to localized pitting corrosion based on its chemical composition. In general, the higher the PREN value, the more resistant is the stainless steel to localized pitting corrosion by chloride.

Pitting corrosion is a type of corrosion that occurs when a small area of the surface of a metal is attacked by a corrosive environment, such as chloride ions. The attack is localized to a small area, which can lead to the formation of holes or pits in the metal.

PREN is calculated using the following formula:

PREN = %Cr + 3.3 × %Mo + 16 × %N

A358 Tolerance Calculator

To assist with the tolerances on o/d and wall thickness of NB pipe manufactured to the A358 specification.

Plate Width Calculator

To assist with the thickness of plate required to manufacture a pipe, from a given o/d and wall thickness.

Although every effort has been made to give accurate information PipeXtra Stainless Ltd accepts no responsibility for any errors.