Stainless Steel

Stainless steel is available in a variety of specifications for different uses. The list below shows the different grades of stainless steel available and their properties.

Type % Cr % Ni Properties
316 18 8 Non Magnetic, Corrosion Resistant, Austenitic.
321 18 8 Slight Magnetic, Corrosion and Heat Resistant, Austenitic.
304 18 8 Non Magnetic, General Purpose Steel, Austenitic.
303 18 8 Non Magnetic, Free Cutting Steel, Austenitic.
310 25 20 High Heat Resistant Stainless, Austenitic.
410 12 Cr Magnetic, Corrosion Resistant, Machinability, Martensitic.
416 12 Cr as above with Improved Machinability, Martensitic.
431 17 2 Magnetic, High Tensile Steel, Martensitic.
430 17 Cr Magnetic, Good Corrosion Resistance, Ferritic.

All of our boilers are made from top grade 316L stainless steel as this is the best suited material for corrosion resistant boilers.