Stainless steel
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We use different types of stainless steel depending on the application and the type of product. The best quality we use is AISI 316. Contrary to what is often thought, stainless steel can also start rusting if it is not maintained correctly on a regular basis. Also, the level of rusting or not depends on the stainless steel being exposed to for example other rusty metals, salt, rain or any aggressive conditions.
Agressive environmental circumstances caused by chlorides, acid rain, salt and rusty materials will ask for
periodical maintenance. Products to clean and protect
are widely available.
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Stainless steel is a mixture of several components of which metal, chromium and nickel are the most important ones. The relation between these components will vary according to the application. There are many different types of stainless steel, each with their own specific characteristics.
When exposed to oxygen, chromium and nickel will create an invisible oxidation. With more than 12% this oxidation will completely close off and protect the surface. The types we use contain about 18% so that the layer is as thick as possible, it is rapidly produced and thus offers a better protection. |
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We use 3 types of stainless steel, depending the application:
AISI 304: good resistance against corrosion in most aggressive environments
Used for : most of the extremis products like: ExTempore barbecue, Serpentine, InUmbra tubes, Qrater accessories
AISI 303: addition with sulphur, good for stainless steel turning parts
Used for: all turning parts
AISI 316 (maritime quality): addition with molybdenum, better resistance in chlorine-rich environments
Used for sea-side climates, swimming pools and architecture.
Used for: Gargantua, ExTempore, InUmbra lasered turning parts |
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Maintenance
If the oxidation layer is damaged, it will restore by itself, but only if this can occur in a non-aggressive environment. The oxidation layer can be damaged by mechanical influences, but also by acids, pollution, loose rusting metal particles, etc. A maritime climate, chlorine, acid rain or an aggressive industrial or urban environment are seriously aggravating factors.
They determine the frequency and need for surface cleansing; the adequate products necessary therefore are generally available.
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