Use of stainless steel in coastal areas

Oh, we like to be by the sea … but stainless steel?

Well, the simple answer is no, not really. Coastal areas are one of the harshest environments with high levels of salt in the air, strong winds and abundant gifts of gulls which, when applied to stainless steel products, will begin to corrode the surface and tarnish the finish if not maintained. regularly.

Are there different types of stainless steel that can be used?

Absolutely. The main thing to ensure is that your supplier is using G316 (marine grade) stainless steel and not G304 material that should only be used internally.

There are two main stainless steel surface finishes; satin (brushed) and mirror (glossy) polished.

Satin-finish stainless material has a brushed “grain” that accumulates salt and contaminants that can begin to deteriorate the steel. Satin polished stainless steel can certainly be used offshore, as many of our customers do, but it simply requires a higher level of ongoing cleaning and maintenance.

However, mirror polished stainless steel is a smooth, streak-free finish that offers added protection against coastal elements. The mirror polish option is more expensive but would require less maintenance than a brushed finish alternative.

Will stainless material rust in coastal regions?

Stainless steel relies on its passive layer for its resistance to corrosion. It is a thin layer of chromium oxide that forms on its surface when chromium is present in 10.5% or more. The underlying metal is not resistant to corrosion. The passive layer forms spontaneously on a clean surface, but can be damaged by contamination of iron, airborne particles, and particularly chlorides.

Therefore, it is imperative that stainless metal is subjected to a continuous maintenance and cleaning program. Remember that it is IMMATERIAL, not STAIN FREE.
What type of cleaning products should be used?

The main objective is to clean the salt and contaminants from the surface of the steel, which can be done with any basic cleaning agent, such as soapy water. More sophisticated specialty products are available for cleaning stainless steel, but may only be necessary if the tea stain is widespread or difficult to remove.

The basic rule is simple, take care of stainless steel with regular cleaning since prevention is always easier (and cheaper) than cure.

So would you advise against the use of stainless metals by the sea?

Not at all. If the budget allows, go for a mirror polished finish, but the main information you can get here is that you cannot just buy a stainless product and leave it in place, especially in coastal regions without cleaning it, just clean it as often as be necessary. you clean your windows and doors. Take care of your stainless steel and it will look great for years to come.