This air vent cover is produced in stainless steel 304/316 material , which is solid and durable
The surface is polished . Good material and excellent polishing quality make it has good performance on anti-rust and corrosion resistance .
Each pc pass our inspection before shipping to you.
2 sizes are available for you ， 5 inch and 6 inch. If there is no size you need, please feel free to let us know.
Product Advantage
Exceptional Corrosion Resistance in Marine Environments.: Marine - grade 316 stainless steel contains molybdenum, an alloying element that forms a dense, protective oxide layer on the surface. This layer effectively resists corrosion from saltwater, humidity, and harsh marine atmospheres—common culprits that degrade ordinary metals.
High Mechanical Strength and DurabilityWith excellent tensile strength and impact resistance, 316 stainless steel vent grilles can withstand the extreme conditions of marine operations, such as strong winds, wave impacts, and vibration from ship engines.
Low Maintenance and Hygienic PerformanceThe smooth, non - porous surface of 316 stainless steel prevents the accumulation of marine organisms (e.g., barnacles, algae), dust, and debris.
Technical Parameters
FAQ:
1. Why does stainless steel have magnetism?
a.Often, people use magnets to test the quality of stainless steel. If a magnet doesn't attract and has no magnetism, it is genuine and of good value.
b.On the contrary, it is regarded as a counterfeit. In fact, this is an extremely one-sided and unrealistic method of wrong identification. c.Austenitic stainless steel is non-magnetic or weakly magnetic. Martensitic or ferritic stainless steel is magnetic. However, when austenitic stainless steel undergoes cold working, the microstructure of the processed area will also transform into martensite.
d.The greater the degree of processing deformation, the more martensitic transformation occurs and the greater the magnetic property. The material of the product will not change.
e.More professional methods should be adopted to test the material of stainless steel. (Spectral detection, stainless steel identification liquid detection).
2. Why does stainless steel rust?
a. When dust containing other metal elements or particles of dissimilar metals accumulate on the surface of stainless steel, in a humid environment, the condensate water between the adherent and the stainless steel forms a micro-battery, triggering an electrochemical reaction and damaging the protective film. This is known as electrochemical corrosion. b. When organic substances such as vegetable juice, noodle soup, and phlegm adhere to the surface of stainless steel, they form organic acids in the presence of water and oxygen.
c.Over a long period of time, these organic acids will corrode the metal surface. d. The stainless steel surface adheres to substances containing acids, alkalis and salts (such as splashed alkali water and lime water during wall decoration), causing local corrosion. e. In polluted air (such as that containing large amounts of sulfides, carbon oxides, and nitrogen oxides), upon encountering condensation water, liquid spots of sulfuric acid, nitric acid, and acetic acid are formed, causing chemical corrosion.
Packing and Delivery
Exhibition
Stainless Steel Round Air Louvers Vent
Product Introduction
This air vent cover is produced in stainless steel 304/316 material , which is solid and durable
The surface is polished . Good material and excellent polishing quality make it has good performance on anti-rust and corrosion resistance .
Each pc pass our inspection before shipping to you.
2 sizes are available for you ， 5 inch and 6 inch. If there is no size you need, please feel free to let us know.
Product Advantage
Exceptional Corrosion Resistance in Marine Environments.: Marine - grade 316 stainless steel contains molybdenum, an alloying element that forms a dense, protective oxide layer on the surface. This layer effectively resists corrosion from saltwater, humidity, and harsh marine atmospheres—common culprits that degrade ordinary metals.
High Mechanical Strength and DurabilityWith excellent tensile strength and impact resistance, 316 stainless steel vent grilles can withstand the extreme conditions of marine operations, such as strong winds, wave impacts, and vibration from ship engines.
Low Maintenance and Hygienic PerformanceThe smooth, non - porous surface of 316 stainless steel prevents the accumulation of marine organisms (e.g., barnacles, algae), dust, and debris.
Technical Parameters
FAQ:
1. Why does stainless steel have magnetism?
a.Often, people use magnets to test the quality of stainless steel. If a magnet doesn't attract and has no magnetism, it is genuine and of good value.
b.On the contrary, it is regarded as a counterfeit. In fact, this is an extremely one-sided and unrealistic method of wrong identification. c.Austenitic stainless steel is non-magnetic or weakly magnetic. Martensitic or ferritic stainless steel is magnetic. However, when austenitic stainless steel undergoes cold working, the microstructure of the processed area will also transform into martensite.
d.The greater the degree of processing deformation, the more martensitic transformation occurs and the greater the magnetic property. The material of the product will not change.
e.More professional methods should be adopted to test the material of stainless steel. (Spectral detection, stainless steel identification liquid detection).
2. Why does stainless steel rust?
a. When dust containing other metal elements or particles of dissimilar metals accumulate on the surface of stainless steel, in a humid environment, the condensate water between the adherent and the stainless steel forms a micro-battery, triggering an electrochemical reaction and damaging the protective film. This is known as electrochemical corrosion. b. When organic substances such as vegetable juice, noodle soup, and phlegm adhere to the surface of stainless steel, they form organic acids in the presence of water and oxygen.
c.Over a long period of time, these organic acids will corrode the metal surface. d. The stainless steel surface adheres to substances containing acids, alkalis and salts (such as splashed alkali water and lime water during wall decoration), causing local corrosion. e. In polluted air (such as that containing large amounts of sulfides, carbon oxides, and nitrogen oxides), upon encountering condensation water, liquid spots of sulfuric acid, nitric acid, and acetic acid are formed, causing chemical corrosion.
