Corrosion resistance performance is the most concerned factor for flexible hose coupling buyers, because some application ares is moist, only excellent corrosion resistance flexible hose coupling has longer service life.

So do you know what factor decides the corrosion resistance performance of flexible hose coupling? The answer is chromium content in raw material.

When chromium content reaches 10.5%, steel’s atmosphere corrosion resistance strengthened remarkably, but when chromium content reaches higher percent, although corrosion resistance can be strengthened, not obvious. The reason is that when chromium alloying steel, it changes steel surface oxide type to a kind of oxide that similar to pure chromium metal surface oxide. The tightly adhered chromium oxide protect metal surface and prevent further oxidation. The oxide layer is very thin, through which we can see the nature shine of stainless steel surface, making stainless steel an unique surface. What’s more, if surface is damaged, the exposed steel surface will react with atmosphere and self repaired, form a new film and keep protecting the flexible hose coupling.

In some cases, we often add another protective cover for flexible hose coupling, that is braided mesh cover, which double protected the flexible hose coupling. Although flexible hose coupling has double protection, there still has no reason that ignoring the daily maintenance for flexible hose coupling.

Henan Lanphan is a professional manufacturer in flexible hose coupling, please let us know if you have any question regarding to flexible hose coupling.