A405

Components requiring excellent resistance to boiling, concentrated nitric acid, equipment and components exposed to highly concentrated chlorine solutions at elevated temperatures, components for urea plants.

Product Features

Property Features

Austenitic chromium-nickel-molybdenum steel with nitrogen addition and extra low carbon content. Resistant to intergranular corrosion in the temperature range up to 400°C. Does not require post-weld heat treatment. Surface finish required for optimum corrosion resistance: pickled. Cold forming properties are very good. The steel is capable of taking a mirror polish.

Applications

Components for chemical plants (incl. LNG, FGD, Urea, LDPE etc.)
Other O&G + CPI components
Tubular products, flanges & fittings
Valves & actuators

Technical Data

Chemical Analysis

C	Si	Mn	Cr	Mo	Ni	N
<=0.02	0.30	1.80	25.00	2.20	22.00	0.12