Durability
There are more than 60 grades of stainless steel. However, the entire
group can be divided into five classes. Each is identified by the alloying
elements which affect their microstructure and for which each is named.
The different families of stainless steels, ferritic, martensitic, precipitation-hardening,
duplex and cast have a greater or less resistance to corrosion and differing
hardening and strength characteristics. Pland uses stainless steel from
the austenitic family of alloys which contain chromium, nickel and molybdenum.
The grades used by Pland, 304 and 316, provide
strength and corrosion resistance whilst being appropriate for the forming
processes used to create washroom and sanitaryware products. All stainless
steel contains a large proportion of iron, even highly alloyed grades
such as 316 are a minimum of 62% iron.
Ferritic grade 430 is commonly only used for shelves and sink stands.
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