Stainless Steel - Miele Dishwasher Care And Maintenance

Note
Silver plate:
Silver-plated items consist of a stainless-steel (18/8 or 18/10) or
alloy (copper, nickel and zinc (nickel silver)) base material plated
with a thin pure silver coating in a galvanic bath.
Externally silver-plated and solid-silver items appear identical
and it is virtually impossible to differentiate between them. The
polishing and shine properties of both versions are also identical.
Silver-plated items have a certain resistance to chemical action
but over a longer period the coating may be subject to wear and
the base metal may become visible as yellow or gold
discoloration. In such a case this discoloration is not due to
tarnishing.

3.4 Stainless steel

Nowadays a considerable proportion of a dishwasher load may be made of
stainless steel, e.g. plates, platters, pots, pans, sieves, cutlery and ladles.
Rust-free stainless steel refers to steel alloys with at least 12% chromium.
Other metals may also be present such as nickel, molybdenum, vanadium
and manganese. The proportions of the various constituents influence the
level of resistance to corrosion and other properties such as whether the
metal is magnetic.
The majority of stainless-steel cutlery is made from 18/10 stainless steel
(Chromium 18%, nickel 10%, iron 72%) which is rust-free and nonmagnetic.
Under unfavorable conditions any stainless steel can corrode:
1. Pitting (hole corrosion) can occur due to the effect of chlorides.
Initially this starts as small pin pricks invisible to the naked eye.
Over a period of time these enlarge and become discolored
(dark grey to black).
Technical Information
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