The Storage Tank
ENVIROSUN PIONEERED AND MASTERED THE USE OF TYPE 444 FERRITIC STAINLESS STEEL IN THE CONSTRUCTION OF OUR THX SOLAR HOT WATER RANGE
Compared with traditional austenitic stainless steel (such as Type 316L and 304L) ferritic stainless steels offer major performance advantages. In particular, Type 444 out-lasts Type 316L when it comes to resisting localized corrosion or pitting attack at elevated water temperatures.
Generally, Type 444 is a highly durable and trouble-free material that offers significant live cycle cost advantages. Stainless steels derive their corrosion resistant properties through the inclusion of stainless steel. However the key to the enhanced performance of this Type 444 is the addition of molybdenum and chromium as further alloying elements (traditional austenitic grades incorporate nickel). During the final stage of the factory guarantee period you should arrange for an end-of-warranty service to be carried out. These quality European made 444 stainless steel cylinders have the final assembly here in Australia