Does stainless steel rust? A question we get
from many of our customers.
Stainless steel is also known as inox steel or inox from French inoxydable
(inoxidizable), is a steel alloy with a minimum of 10.5% chromium
content by mass. Therefore stainless steel does not rust.
Stainless steel is widely popular for its anti-corrosion (anti-rust)
properties. Its used in manufacturing everyday life products. From
stainless steel jewelry, stainless steel watches, saucepans, sinks and even
316L stainless steel jewelry, heart shape earrings – Donny J China
Donny J China specializes in manufacturing stainless steel jewelry and
stainless steel watches. Mostly used stainless steel at our factory is 316L
Stainless steel does not readily corrode, rust or stain with water as
ordinary steel does.
Stainless steel watch case – Donny J China
Why does not stainless steel rust?
Stainless steel remains stainless, or does not rust, because of the
interaction between its alloying elements and the environment. Stainless
steel contains iron, chromium, manganese, silicon, carbon and, in many
cases, significant amounts of nickel and molybdenum. These elements react
with oxygen from water and air to form a very thin, stable film that consists
of such corrosion products as metal oxides and hydroxides. Chromium
plays a dominant role in reacting with oxygen to form this corrosion
product film. In fact, all stainless steels by definition contain at least 10
What is Grade 316 stainless steel?
Grade 316 is the standard molybdenum-bearing grade, second in
importance to 304 amongst the austenitic stainless steels. The
molybdenum gives 316 better overall corrosion resistant properties than
Grade 304, particularly higher resistance to pitting and crevice corrosion in
What you should know about steel metal as in general?
However, it is not fully stain-proof in low-oxygen, high-salinity, or poor air-
circulation environments. There are various grades and surface finishes of
stainless steel to suit the environment the alloy must endure.
In normal atmospheric or water based environments, stainless steel will
not corrode as demonstrated by domestic sink units, cutlery, saucepans