Calculators

Working numbers from the same validated data the data sheets use. Type a comma or a point decimal; both are read the same. Every result is indicative arithmetic, not a certification - the standard and the mill certificate decide.

Pitting resistance (PREN)

Type a chemistry in weight percent; the score sits on the service-environment ladder and points at the grades whose specified windows contain it.

Chromium %

Molybdenum %

Nitrogen %

Nitrogen weighting

Cr + 3,3 Mo + 16 NCr + 3,3 Mo + 30 N

The 16× form is the common one; super duplex houses often weight nitrogen at 30. The choice is yours to make, so it is a control, not an assumption.

PREN = %Cr + 3,3 × %Mo + 16 × %N

Unit conversion

Only the quantities the data tables carry, with the same conversion factors - nothing here invents precision the source does not have.

Quantity

Strength (MPa)

MPa → ksiksi → MPa

Result in ksi

Section weight

Theoretical mass from the alloy's stated density. Mill tolerance and the actual heat decide the delivered weight - use this to size a quote, not to certify a lift.

Form

Alloy

Diameter (mm)

Length (m)

Enter the dimensions to see the mass.

PREN is a screening index, not a corrosion guarantee; the formula used is stated beside the result. Weights are theoretical from the alloy's stated density - mill tolerance decides the delivered figure. For a real number against real stock, request a quote.

The specifications and data on this site are provided for general information only. Verify any real-world project with a qualified metallurgist before relying on these figures. We take no responsibility for the use and application of this information.